"Free desktop pets" is a search that usually ends in disappointment — either the app is free but ad-supported, free but abandoned in 2014, or "free" in the trial sense where the pets stop showing up after two weeks. Pets Therapy takes a different approach: a large, permanently free tier, with paid extras that add to it rather than unlock it. Here's the exact split, feature by feature, so you can decide before you install anything.
What you get for free
- 37 pets — cats (in several colours), a T-Rex, apes, a Shiba Inu, a Labrador, an owl, a koala, a sloth, a shark, frogs, mushrooms, bunnies, a crow, a betta fish and more, each with its own walk, idle and sleep animations.
- 5 sleepy-places — little houses and beds your pets can nap in.
- Unlimited custom pets — create, import, rename and delete your own characters with your own sprites. No paid tier required.
- 3 random events — weather, a passing UFO, and teleportation portals that appear on their own while you work.
- Multi-monitor support — pets roam across every display you enable.
- Full control over size, speed and behaviour, including per-pet size overrides.
- Every language — the app is fully translated into 19 languages at no cost.
- No ads, no telemetry-for-sale, no account, no time limit.
What the optional upgrade adds
We'd rather be straight about this than have you find out after installing. Supporting the app — either with a subscription or a one-time lifetime purchase — adds:
- 66 additional pets, bringing the total to 100+.
- 12 additional random events — tornadoes, dolphins, airplanes, school-bus and balloon pickups, screen glitches and more, on top of the 3 free ones.
- Automatic pet rotation — the app periodically swaps your whole line-up so your desktop cast keeps changing on its own.
Nothing in the free tier is removed or downgraded if you don't buy, and there's no nagging countdown. The paid tier exists because a solo developer maintains this across macOS, Windows and Linux — not because the free version is deliberately crippled.