The Litter-Robot 4 costs $699. The PetSafe ScoopFree Crystal Pro Legacy starts at $129.99. That $569 gap drives most of this comparison, because the cheaper box bills you every month for disposable crystal trays while the pricier one runs on regular clumping litter.
Both boxes end daily scooping, and they get there in different ways. The Litter-Robot 4 rotates a globe and sifts clumps into a sealed drawer. The PetSafe ScoopFree Crystal Pro pulls a rake through crystal litter and drops waste into a covered tray you throw away. If you haven’t settled on an automatic box at all, start with our guide to the best automatic litter boxes.
Below you’ll find the real cost over time, which litter each box accepts, how each handles kittens and large cats, and the problems owners report. I checked specs and prices in September 2026 against Whisker’s and PetSafe’s own product pages, and I flag anything that changes by retailer or by version.
Last updated September 21, 2026. This post contains Amazon affiliate links. As an Amazon Associate I earn from qualifying purchases, at no extra cost to you.
In This Comparison
- Litter-Robot vs ScoopFree at a glance
- Which one should you buy? Quick picks by situation
- Litter-Robot 4 analysis
- PetSafe ScoopFree Crystal Pro Legacy analysis
- ScoopFree vs Litter-Robot cost over time
- How to get your cat using an automatic litter box
- Common problems and fixes
- Major factors to consider
- Feature and specification comparison
- Winner and final recommendation
- Frequently asked questions
Litter-Robot vs ScoopFree at a Glance
This table covers the differences that change a buying decision. Each row gets more detail in the sections after it.
| Litter-Robot 4 by Whisker | PetSafe ScoopFree Crystal Pro Legacy | |
|---|---|---|
| Price | $699 | From $129.99 (uncovered). Hooded versions cost more. |
| Ongoing cost | Clumping litter, drawer liners, carbon filters | Disposable crystal trays, about $24.50 each |
| Litter | Most clumping litters | ScoopFree crystals only |
| How it cleans | Rotating globe sifts waste into a sealed drawer | Rake sweeps waste into a covered tray 20 minutes after each visit |
| Cats | Up to 4 cats. Whisker lists 3 to 25 lbs. | Best for 1 to 2 cats. Age 6 months and up. |
| App | Yes, needs 2.4 GHz Wi-Fi | No. Plugs into an outlet. |
| Best for | Multi-cat homes, large cats, health data | One cat, lowest upfront price, no app |
⚡ Quick Verdict
If I had to pick one, I’d pick the Litter-Robot 4 for most households. It takes regular clumping litter, tracks each cat’s weight in an app, and Whisker rates it for up to four cats. The ScoopFree Crystal Pro Legacy is the better buy if you have one cat and want automation for under $150.
One caveat on my own pick. The Litter-Robot 4 only saves money when two or more cats share it. With one cat, ScoopFree trays cost about $24.50 a month, and closing the $569 price gap can take years. The cost section below shows the math.
Which One Should You Buy? Quick Picks by Situation
| Your situation | Better pick | Why |
|---|---|---|
| One cat, budget under $150 | ScoopFree | It starts at $129.99, and PetSafe says one tray lasts up to 30 days with one cat. |
| Two or more cats | Litter-Robot 4 | Whisker rates it for up to four cats. With two cats, ScoopFree trays reportedly last about 15 days, so tray bills double. |
| Large cat | Litter-Robot 4 | Whisker lists a 15.75 in entryway and a 3 to 25 lb range. I couldn’t find a maximum weight from PetSafe, and one Chewy reviewer found the ScoopFree smaller than expected for their cats. |
| Kitten | Litter-Robot 4 | Automatic mode works from 3 lbs. PetSafe says to leave the ScoopFree unplugged and scoop by hand until a kitten is 6 months old. |
| Small space | ScoopFree (uncovered) | The uncovered version is 6.2 in tall. The hooded versions stand 15.6 to 16 in tall, and the floor footprint stays 27.6 x 19.1 in. |
| Want weight and visit data | Litter-Robot 4 | SmartScale logs weight per cat in the Whisker app. The ScoopFree only counts visits. |
| Not sure your cat will accept it | Litter-Robot 4 | Whisker gives a 90-day in-home trial when you buy direct. PetSafe’s own store return window is 45 days. |
| Hate buying and storing litter | ScoopFree | Trays arrive pre-filled, and you throw the used tray away. |
Analysis: Litter-Robot 4 by Whisker
The Litter-Robot 4 is the app-connected pick for owners who want to track their cat’s habits and stop buying disposables. It fits multi-cat homes best, since Whisker rates it for up to four cats.
A rotating globe does the work. After your cat leaves, the box waits seven minutes by default, then spins so clumps slide through a sifting screen into a sealed waste drawer with a carbon filter. Clean litter falls back into the bed. You can change the wait to 3, 7, 15, 25 or 30 minutes, according to Whisker’s support page. Shorter waits cut odor and keep waste away from a curious dog. Longer waits give cheaper litter time to clump.
It works with most clumping and scoopable litters. Whisker says beads and crystals small enough to pass through the screen also work, but non-clumping, newspaper and wood-pellet litters don’t. That flexibility is the main reason the box costs less to run over time.
A laser and a weight sensor detect your cat entering and leaving. That starts the countdown and stops a cycle if a cat steps back in. The Whisker app logs each visit, litter level and waste drawer level, and its SmartScale feature tracks weight so you can split cats into separate profiles.
Build Quality & Design
The shell is plastic and the globe is fully enclosed, which contains odor and cuts down on tracking. The entryway measures 15.75 by 15.75 in, and the interior stands 15 to 17 in tall depending on litter level. The box is 22 x 27 x 29.5 in and weighs 24 lbs empty, so it takes real floor space. It comes in black or white, with swappable bezel colors.
Performance & Speed
Whisker’s QuietSift design is meant to keep the cycle quiet, and reviewers back that up. One long-term reviewer reported that cycling stopped the moment their cat put paws on the ledge to peek inside. The waste drawer holds about 9 to 10 lbs (7 to 8 liters). One tester said the drawer needs emptying about once a week and the globe needs a wash roughly once a month. More cats means emptying more often.
Features & Functionality
The app sends alerts when the drawer is full and lets you set a Sleep Mode so the box doesn’t cycle at night. You can adjust the light inside the globe and change the cycle delay from your phone. Setup needs a 2.4 GHz Wi-Fi network, because the LR4 doesn’t support 5 GHz.
User Experience
Onboarding runs through the app. Manual cycles and basic settings also live on the unit’s control panel. SmartScale readings are most accurate on a firm floor. On carpet 3 mm or thicker, or on uneven flooring, Whisker sells a Carpet Tray to fix the readings. Cleaning means lifting the globe off the base and washing it with mild soap and water. There are no electronics inside the globe.
Value for Money
At $699 it’s a big purchase. You skip proprietary refills, and Whisker backs direct purchases with a 90-day in-home trial. The catch is that the payback depends on how many cats you have. The cost section below breaks that down.
Where the Litter-Robot 4 Fits in Whisker’s 2026 Lineup
The LR4 is no longer Whisker’s newest box. Whisker added the Litter-Robot 5 and the compact EVO in late 2025, and it sells a Litter-Robot 5 Pro at about $899 that adds built-in cameras.
| Model | Price | Cats | What sets it apart |
|---|---|---|---|
| Litter-Robot EVO | $599 | Up to 2 | A more compact, lower-priced take on the LR4 |
| Litter-Robot 4 | $699 | Up to 4 | Wide entryway, litter and waste level sensing, Whisker app |
| Litter-Robot 5 | $799 | Up to 5 | WasteID tells urine from feces, larger waste drawer, LCD screen |
If WasteID health data matters to you, pay the extra $100 for the LR5. If you want a box that scoops itself, the LR4 does that, and Whisker’s own 4 vs 5 comparison says the LR4 still has over 10,000 five-star reviews.
✅ Advantages
❌ Disadvantages
Analysis: PetSafe ScoopFree Crystal Pro
The ScoopFree Crystal Pro Legacy is the plug-in-and-forget option. It suits one-cat homes that want automation for under $150 and don’t mind buying trays.
Crystal litter absorbs urine and dries solid waste. After your cat leaves, a 20-minute countdown starts, then a rake pulls waste into a covered compartment. If your cat walks back in, the timer resets. PetSafe claims the crystals control odor five times better than clumping clay, which is the company’s own figure.
Cleanup means pulling out the whole tray. Each tray has a plastic lining that protects against leaks and comes with a lid for disposal. PetSafe says one tray lasts up to 30 days in a single-cat home. Owners with two cats report about 15 days.
The Legacy comes in three versions. The uncovered box measures 27.6 x 19.1 x 6.2 in and lists at $129.99 on PetSafe’s site. The front-entry hood is 16.0 in tall and the top-entry hood is 15.6 in tall, and both cost more. The Amazon link in this post goes to the front-entry version.
Build Quality & Design
The frame is lightweight plastic. Amazon listings put it at roughly 13 lbs for the uncovered box and 19 lbs for the top-entry version. It has fewer moving parts than a rotating globe, but the rake track can jam when debris collects in it. PetSafe’s own support page says to clean the track with compressed air or a damp cloth. The box has to stay plugged into an outlet.
Performance & Speed
The crystals do the odor work, and they lose ground in humid rooms. PetSafe’s retail partners advise keeping the box away from bathrooms, showers and basements, because extra moisture shortens tray life. The 20-minute wait before raking is fixed on the Legacy. That gives solids time to dry, but waste sits in the bed longer than it does on a Litter-Robot set to 3 or 7 minutes.
Features & Functionality
A health counter shows how many times the box was used. It counts visits and doesn’t know which cat came in, so it can’t split two cats apart. Safety sensors hold the rake while a cat is in the box.
User Experience
Setup takes minutes. There’s no Wi-Fi, no app and nothing to configure. PetSafe says to leave the box unplugged and scoop by hand until a kitten is 6 months old. PetSafe also lists a separate ScoopFree Smart model with an app, which this comparison doesn’t cover.
Value for Money
The low entry price is the appeal. The catch is that only ScoopFree crystal trays work in it. PetSafe warns that using a different litter, or the wrong amount, can cause the box to malfunction. Trays add up fast with two cats, so run the numbers in the cost section before you buy. If you buy from PetSafe’s store, the return window is 45 days.
✅ Advantages
❌ Disadvantages
ScoopFree vs Litter-Robot: What Each One Costs Over Time
ScoopFree looks cheap until you add trays. The numbers below use a $73.49 three-pack of trays ($24.50 each), PetSafe’s up-to-30-days tray life for one cat, and about 15 days for two cats, which is what reviewers report. The first tray comes in the box. Prices vary by retailer, so check the current listing before you buy.
| ScoopFree total (box plus trays) | After year 1 | After year 2 | After year 3 | Litter-Robot 4 |
|---|---|---|---|---|
| One cat | $399 | $693 | $987 | $699 plus litter |
| Two cats | $693 | $1,281 | $1,869 | $699 plus litter |
The Litter-Robot 4 has running costs too: clumping litter, drawer liners and carbon filters. Litter prices swing by brand, so I won’t guess yours. This table shows how long the $569 price gap takes to pay back at different monthly Litter-Robot bills.
| Monthly litter, liner and filter spend | Payback with one cat | Payback with two cats |
|---|---|---|
| $10 | About 39 months | About 15 months |
| $20 | Over 10 years | About 20 months |
| $30 | Never | About 30 months |
That table assumes $24.50 a month in ScoopFree trays for one cat and $49 for two. Trays wear out sooner in humid rooms, with very young or older cats, and on some diets, so your ScoopFree bill could run higher.
This is why I changed one claim from the earlier version of this post. The Litter-Robot 4 does save money in the long run when two or more cats share it. With one cat it usually doesn’t. Buy it for one cat when you want the app, the capacity and the trial period. Don’t buy it expecting to save money.
Work Out Your Own Break-Even
- Subtract $129.99 from $699 to get the $569 price gap.
- Estimate your monthly ScoopFree tray cost: $24.50 for one cat, $49 for two.
- Subtract what you would spend each month on litter, liners and filters for the Litter-Robot.
- Divide $569 by that difference. The result is your payback time in months.
How to Get Your Cat Using an Automatic Litter Box
Whisker says over 95% of cats accept the Litter-Robot, and most start within a few days to a week. That figure comes from Whisker’s own return data, so treat it as a best case. A slow switch improves your odds with either box.
- Keep the old box. Put the new one next to it so your cat never loses access to a familiar spot.
- Start with the power off. Let your cat sniff it, step in and step out without anything moving.
- Make the litter smell familiar. On the Litter-Robot, mix in a scoop of used litter from the old box. On the ScoopFree, don’t mix litters. The box only works with its own crystals.
- Run the first cycles while your cat is out of the room. Once your cat has used the new box, turn it on and start a cycle from a distance.
- Give it a week. Keep the old box for at least a week after your cat starts using the new one, and longer if accidents show up.
- Handle kittens differently. For a kitten under 3 lbs, run the Litter-Robot 4 powered off. Wait about 7 minutes after the kitten uses it, then power it on for one cycle. For the ScoopFree, leave it unplugged and scoop by hand until 6 months.
Common Problems and How to Fix Them
These fixes come from Whisker’s and PetSafe’s own support pages. Check them before you decide a box is broken or return it.
| Box | Problem | Likely cause | Fix |
|---|---|---|---|
| Litter-Robot 4 | Won’t start a cycle | Cat under 3 lbs, a scale issue, or the 7-minute delay still counting down | Wait out the delay, or press Reset to cancel the countdown. Check the light bar codes in Whisker’s guide. |
| Litter-Robot 4 | Odd weight readings | Soft carpet or an uneven floor | Move it to a firm floor, or add Whisker’s Carpet Tray for carpet 3 mm or thicker. |
| Litter-Robot 4 | Won’t connect to the app | The LR4 only supports 2.4 GHz Wi-Fi | Connect it to a 2.4 GHz network. |
| Litter-Robot 4 | Clumps not setting before the cycle | Cycle delay too short for your litter | Lengthen the cycle delay, especially with lower-quality clumping litter. |
| ScoopFree | Rake won’t move | The 20-minute countdown is still running, or debris is in the rake track | Wait for the timer to finish. Clean the track with compressed air or a damp cloth. Confirm the tray has its life-indicator tag. |
| ScoopFree | Tray needs changing early | Humid room, two cats, a very young or older cat, or a high-fiber diet | Move the box out of bathrooms and basements, and plan on about 15 days per tray with two cats. |
| ScoopFree | Cat avoids the crystals | Crystals feel different from clay | Switch slowly using the steps above. If your cat still refuses, a Litter-Robot takes clumping litter. |
Major Factors to Consider
These are the factors that separated the two boxes for me. Weigh them against your cat count, your space and your monthly budget.
Performance
The Litter-Robot 4 sifts through a rotating globe and works with most clumping litters. The ScoopFree rakes waste into a covered tray and depends on crystals to dry it. Both end scooping. Neither fixes a cat that avoids the box.
Speed & Efficiency
The Litter-Robot 4 waits 7 minutes by default and can drop to 3. The ScoopFree waits a fixed 20 minutes. With several cats, the shorter wait keeps the bed cleaner between visits.
Price & Value
The Litter-Robot 4 costs $699 up front and runs on standard litter. The ScoopFree starts at $129.99 and needs a $24.50 tray about every month for one cat. See the cost table above for where the lines cross.
Build Quality
The Litter-Robot 4 weighs 24 lbs empty and its globe lifts off for washing. The ScoopFree is a lighter frame, roughly 13 to 19 lbs depending on version, with a rake that can jam when debris builds up in the track.
Design & Aesthetics
The Litter-Robot 4 is an enclosed globe in black or white with swappable bezels. The ScoopFree comes uncovered, with a front-entry hood, or with a top-entry hood, so you can choose how visible it is.
Durability
Both boxes are motorized and plug into an outlet, so read the warranty on the seller’s page before you buy. The support fixes above cover the problems each maker documents most.
Odor Control
The Litter-Robot 4 seals waste in a drawer with a carbon filter. The ScoopFree relies on crystals that absorb urine and dry solids. Both cut odor, and the crystals lose ground in humid rooms or near the end of a tray’s life.
Multi-Cat Homes
The usual rule is one box per cat plus one spare, and it applies to automatic boxes too. Whisker rates the LR4 for up to four cats. PetSafe’s listing describes the ScoopFree as designed for one or two cats.
Feature Comparison
Use this table to see which capabilities you’d actually use, such as app connectivity, litter compatibility and weight tracking.
| Feature | Litter-Robot 4 by Whisker | PetSafe ScoopFree Crystal Pro |
|---|---|---|
| App Connectivity | ✓ | ✗ |
| Standard Litter Support | ✓ | ✗ |
| Weight Tracking per Cat | ✓ | ✗ |
| Visit Counter | ✓ | ✓ |
| Automatic Raking | ✗ | ✓ |
| Rotating Drum | ✓ | ✗ |
| Disposable Trays | ✗ | ✓ |
| Odor Control | ✓ | ✓ |
| Multi-Cat Suitable | ✓ Up to 4 cats | ✓ Best for 1 to 2 cats |
| Quiet Operation | ✓ | ✓ |
| Easy Maintenance | ✓ | ✓ |
Specifications Comparison
Check these dimensions against your space. The ScoopFree specs come from PetSafe’s product page, and weights come from retailer listings, so they vary by version.
| Specification | Litter-Robot 4 by Whisker | PetSafe ScoopFree Crystal Pro |
|---|---|---|
| Price | $699 | From $129.99 (uncovered) |
| Cleaning Method | Rotating globe sifts litter | Rake sweeps waste into covered tray |
| Litter Type | Clumping litter (most brands) | ScoopFree crystals only |
| Cycle Timing | 7 minutes default, adjustable 3 to 30 | Fixed 20 minutes |
| Waste Capacity | About 9 to 10 lb drawer (7 to 8 L) | Disposable tray, up to 30 days with one cat |
| Connectivity | Wi-Fi (2.4 GHz) and Whisker app | None. Plugs into an outlet. |
| Health Monitoring | Weight per cat, visits, litter and waste levels | Visit counter |
| Cat Suitability | 3 to 25 lbs, up to 4 cats | 6 months and up, built for 1 to 2 cats |
| Design | Enclosed globe, black or white | Uncovered, front-entry hood or top-entry hood |
| Weight | 24 lbs | About 13 lbs (uncovered) to 19 lbs (top-entry) |
| Dimensions | 22 x 27 x 29.5 in | Uncovered 27.6 x 19.1 x 6.2 in. Front-entry 27.6 x 19.1 x 16.0 in. Top-entry 27.6 x 19.1 x 15.6 in. |
| Upkeep | Empty the drawer, wash the globe | Replace the tray |
| Return Window | 90-day in-home trial (direct from Whisker) | 45 days (PetSafe store) |
🏆 Winner: Litter-Robot 4 by Whisker
Score Breakdown
The Litter-Robot 4 wins on features, cat capacity and running cost in multi-cat homes. Its price is the one real obstacle. At $699 it costs more than five times what the uncovered ScoopFree does, and the ScoopFree does the basic job for a household with one cat. I’d still buy the Litter-Robot 4 for two or more cats, or for one large cat, because of the wider entryway and the per-cat weight data.
Choose PetSafe ScoopFree Crystal Pro If…
Budget-Conscious Buyers
Choose the ScoopFree if you want automation for the lowest upfront price. The uncovered version lists at $129.99 on PetSafe’s site, under a fifth of the Litter-Robot 4’s $699. Trays add roughly $24.50 a month, so it works out best with one cat.
Tight Spaces
The uncovered version is only 6.2 in tall, and the hooded versions stand 15.6 to 16 in. It saves height, but the 27.6 x 19.1 in footprint is close to the Litter-Robot 4’s, so measure the spot before you buy.
Simple Setup Fans
Choose it if you want no app, no Wi-Fi and no settings. Plug it in and drop in a tray. You never scrub a permanent drawer, and PetSafe rates its crystals 99% dust-free.
Convenience Over Long-Term Savings
Choose it if you’d rather pay a tray bill than a $699 box, or if you rent and may move soon. A $129.99 box is easier to walk away from.
🎯 Final Recommendation
Buy the Litter-Robot 4 if you have two or more cats, a large cat, or a kitten you want to protect with weight sensing. It takes standard litter, tracks each cat in an app, and Whisker gives you 90 days to test it. If you want the newest Whisker features, the Litter-Robot 5 costs $100 more and adds WasteID.
Buy the ScoopFree Crystal Pro Legacy if you have one cat and a firm budget. I’ll concede its cost point: for a single cat, it stays cheaper than the Litter-Robot 4 for years. Just plan for a tray every month, and accept that only ScoopFree crystals work in it. If your budget stretches a little further, our guide to the best automatic litter boxes under $500 covers the options between these two.
Summary
- The Litter-Robot 4 costs $699, connects to the Whisker app, and tracks weight and visits for each cat with a rotating-globe sifting system.
- The ScoopFree Crystal Pro Legacy starts at $129.99 and uses disposable crystal trays that last up to 30 days with one cat and about 15 days with two.
- The Litter-Robot 4 takes most clumping litters. The ScoopFree works only with its own crystals.
- The ScoopFree is the better fit for a one-cat home on a tight budget. The uncovered version is 6.2 in tall, though its footprint is close to the Litter-Robot 4’s.
- The Litter-Robot 4 pays back the $569 price gap in roughly 15 to 30 months with two cats. With one cat it can take years or never break even.
- The Litter-Robot 4 is the better long-term pick for most multi-cat households. The ScoopFree is the simpler entry point for one cat.
Frequently Asked Questions
Which product is better overall?
The Litter-Robot 4 is better overall for most households. It takes regular clumping litter, tracks each cat’s weight and visits in an app, and Whisker rates it for up to four cats. The ScoopFree wins on upfront price and simplicity, so the answer flips if you have one cat and a firm $150 ceiling.
Is the price difference worth it?
With two or more cats, usually yes. Trays for two cats run about $49 a month, so the $569 gap pays back in roughly 15 to 30 months depending on your litter bill. With one cat the gap can take years to close, so buy the Litter-Robot 4 for its features and its 90-day trial, and not to save money.
Which has better build quality?
On paper, the Litter-Robot 4 is the heavier-duty build. It weighs 24 lbs empty, has no disposable parts, and its globe lifts off for washing. The ScoopFree is a lighter plastic frame with a rake that can jam if debris collects in the track. PetSafe’s support page covers that jam, and the fix is cleaning the track.
Which is better for beginners?
The ScoopFree, if beginner means no app and no setup. Plug it in and load a tray. The Litter-Robot 4 takes a little more setup because of its app and 2.4 GHz Wi-Fi requirement.
Which offers better value for money?
It depends on your cat count. Upfront value goes to the ScoopFree at $129.99. Long-term value goes to the Litter-Robot 4 in homes with two or more cats, because it uses standard litter instead of $24.50 trays. See the cost section above for the payback table.
What are the main differences?
Cleaning method, litter and connectivity. The Litter-Robot 4 rotates a globe, uses clumping litter and connects to an app. The ScoopFree pulls a rake through crystal litter, drops waste into a disposable tray and has no app.
Can I use regular clumping litter in the ScoopFree?
No. The ScoopFree only works with ScoopFree crystals. PetSafe says a different litter type or size, or too much or too little litter, can make the box malfunction.
Can I use crystal litter in the Litter-Robot 4?
Only crystals or beads small enough to pass through the sifting screen. Whisker says the box works well with almost any clumping or scoopable litter. It doesn’t work with non-clumping, newspaper-based or wood-pellet litters.
How much do ScoopFree trays cost per month?
About $24.50 per tray at a $73.49 three-pack price. With one cat that’s roughly one tray a month. With two cats, trays last about 15 days, so plan on about $49 a month. Prices vary by retailer, and some owners report crystal prices rising.
Which is better for two or more cats?
The Litter-Robot 4. Whisker rates it for up to four cats, and its drawer holds about 9 to 10 lbs of waste. The ScoopFree is built for one or two cats, and with two, trays wear out in about two weeks. With three or more cats, plan on two boxes with either brand. Our guide to the best automatic litter box for multiple cats has more options.
Is the Litter-Robot 4 still worth buying now that the Litter-Robot 5 exists?
Yes, if you don’t need the LR5’s extras. The LR5 costs $799 against $699 for the LR4 and adds WasteID, a larger waste drawer and an LCD screen. Whisker’s own comparison page says many cat parents find the upgrade worth it. If you don’t care about urine-versus-feces data, save the $100.
Can kittens use these litter boxes?
The Litter-Robot 4 runs in automatic mode from 3 lbs. Lighter kittens should use it powered off, then get a manual cycle after each visit. PetSafe says to leave the ScoopFree unplugged and scoop by hand until a kitten is 6 months old.
Will my cat use an automatic litter box?
Whisker says more than 95% of cats accept the Litter-Robot, and most start within a few days to a week. That’s the maker’s own number, so treat it as a best case. Keep the old box nearby and switch slowly, following the steps above.
Does the ScoopFree have an app?
The Crystal Pro Legacy doesn’t. It has a health counter on the box that counts visits. PetSafe lists a separate ScoopFree Smart model with an app, which this comparison doesn’t cover.
What is the difference between the ScoopFree Legacy front-entry, top-entry and uncovered versions?
They share the same rake and tray system and differ in the hood. The uncovered box is 6.2 in tall and the cheapest at $129.99. The front-entry hood is 16.0 in tall and the top-entry hood is 15.6 in tall, and both cost more. The Amazon link in this post goes to the front-entry version.
Still narrowing it down? The Indoor Cat Litter Box hub links to every litter box guide on the site. If you’re comparing bigger boxes, see our picks for the best automatic litter box for large cats and the best smart litter box for cats. For a deeper look at each box in this comparison, read the full Litter-Robot 4 review and PetSafe ScoopFree review.
Written by Mishu
A passionate cat lover and indoor living enthusiast, Mishu is the founder and voice behind Indoor Living Cat – a go-to resource for cat owners who want to create the happiest, healthiest life for their feline companions indoors.
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