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Last updated on October 3, 2026
This PetSafe ScoopFree review compares the models you can buy on Amazon, because the ScoopFree name now covers two different systems. The original boxes rake waste into a crystal litter tray. The newer SmartSpin and OpenSky sift regular clumping litter into a sealed drawer.
Pick your litter system first, then the features. For crystal litter with no app, the Crystal Classic is the simplest choice. If you want to keep using clumping litter, the SmartSpin and OpenSky are the ScoopFree models built for it.
Still deciding whether you want a ScoopFree at all? Our scoop free litter box guide covers that question.
Quick Picks
Simplest crystal model: PetSafe ScoopFree Crystal Classic
Crystal with a hood: ScoopFree Crystal Pro Legacy Front-Entry
Crystal without a hood, with an activity counter: ScoopFree Crystal Pro Legacy
Clumping litter, enclosed: ScoopFree SmartSpin
Clumping litter, open-top: ScoopFree OpenSky
| Model | Litter | Hood | App | Watch Out For |
|---|---|---|---|---|
| Crystal Classic | Crystal trays | No | No | No activity counter |
| Crystal Pro Legacy Front-Entry | Crystal trays | Yes | No | Trays used up faster with more cats |
| Crystal Pro Legacy | Crystal trays | Sold separately | No | More scatter without a hood |
| SmartSpin | Clumping | Enclosed | Yes | Reliability complaints |
| OpenSky | Clumping | Open-top | Yes | Newer, mixed early reviews |
PetSafe ScoopFree Crystal Classic
Why It Stands Out
There’s no assembly, no app and no Wi-Fi. You plug it in, drop in a tray, and the rake runs after your cat leaves.
Owners report strong odor control and low dust. With the disposable tray, cleanup means covering the used tray and putting it in the trash rather than emptying loose waste from a drawer.
Possible Downsides
It has no hood and no activity counter. If you want either, the Pro Legacy models below add them.
Best For
Owners who want the simplest crystal ScoopFree with no app to configure.
ScoopFree Crystal Pro Legacy Front-Entry
Why It Stands Out
This model has the strongest long-term record in the lineup. Three owners report using theirs for 4 years, 4.5 years and about 10 years. Reviewers in two countries describe the rake as slow and quiet.
The rake waits after your cat leaves, with a 20-minute default you can adjust. A digital counter tracks cleaning cycles, which PetSafe uses as a way to follow litter box activity. It’s a log, not a diagnostic tool, so take any concerning change in your cat’s habits to your vet.
The hood adds privacy for cats that like a covered box.
Possible Downsides
Each cat you add uses up a tray faster, so trays become a bigger repeat purchase in multi-cat homes.
Best For
Owners who want a proven, no-app crystal box with a hood.
ScoopFree Crystal Pro Legacy (Uncovered)
Why It Stands Out
It’s the same rake system without the hood, which suits cats that won’t use a covered box. One owner’s account, updated over more than two years, reports no issues.
If you change your mind later, PetSafe has sold a hood separately for this model.
Possible Downsides
Without a hood, more litter can scatter when your cat digs.
Best For
Cats that avoid covered boxes, and owners who want the option to add a hood later.
PetSafe ScoopFree SmartSpin
Why It Stands Out
This is PetSafe’s enclosed box for regular clumping litter. A spinning chamber sifts clumps into a sealed drawer with a deodorizer.
You can set how long it waits after your cat leaves, or turn automatic cleaning off and start cycles yourself. The app shows weight and usage data over 2.4 GHz Wi-Fi. It’s a log, not a diagnosis, so take any concern to your vet.
It comes in black or white.
Possible Downsides
Some owners report malfunctions, and units that stopped working within months. Others say litter can fly out the front, or that the inside feels small for bigger cats.
Best For
Owners set on clumping litter who want an enclosed box and app tracking.
PetSafe ScoopFree OpenSky
Why It Stands Out
The OpenSky uses clumping litter in an open-top design, for cats that don’t like being enclosed. PetSafe says it works with most clumping litters and drops waste into an 8.5 L sealed drawer.
PetSafe rates it for cats up to 33 lb, and the app tracks weight and usage.
Possible Downsides
It’s PetSafe’s newest model, and early owner reviews are mixed. Several describe waste-door errors that stopped the box from cleaning.
Best For
Large cats and cats that avoid enclosed boxes, in homes using clumping litter.
Other ScoopFree Models
PetSafe also sells the ScoopFree Crystal Smart, which adds app connectivity to the crystal tray system. The ScoopFree Clumping uses a rake with regular clumping litter. Check PetSafe’s comparison chart if either sounds like a better fit.
What to Know About the Crystal Tray System
Crystal litter absorbs urine instead of clumping around it. The rake sweeps solids to a covered end of the tray, and urine stays absorbed in place until the tray is replaced.
PetSafe says the crystal models only work with ScoopFree crystal trays or PetSafe’s reusable trays. With a reusable tray and PetSafe crystal litter, you don’t need a new disposable tray each time.
For upkeep, see how to clean an automatic litter box. To help your cat switch over, see how to get your cat to use an automatic litter box.
Frequently Asked Questions
Can I use clumping litter in a ScoopFree?
Only in the clumping models: the SmartSpin, OpenSky and ScoopFree Clumping. The crystal models only take ScoopFree crystal trays or PetSafe’s reusable trays.
Which ScoopFree has an app?
The SmartSpin, OpenSky and Crystal Smart all connect to an app over 2.4 GHz Wi-Fi. The Crystal Classic and Pro Legacy models don’t.
Does the ScoopFree work for multiple cats?
ScoopFree models can be used in multi-cat homes, but check the guidance for your exact model. With the disposable crystal system, more cats also means the tray is used more heavily. For homes with several cats, see our best automatic litter box for multiple cats.
Can kittens use a ScoopFree?
Follow the guidance for your exact model. PetSafe says to keep its crystal ScoopFree boxes unplugged and scoop by hand until a kitten is 6 months old. For the SmartSpin and OpenSky, check the age and weight guidance for that model before using automatic cleaning.
