Grow Animals
Simulation · Lion Studios
Grow Animals screenshots
If you like the idea of designing a pet rather than choosing one from a fixed list, Grow Animals is built around exactly that. You mix potions of cute, smart, strong and love to decide what an animal turns out to be, then raise it from a single cell into something you keep in a zoo you decorate yourself. The appeal is creation and collection, not reflexes.
It comes from Lion Studios, the studio behind Mr. Bullet, Happy Glass, Ink Inc and Love Balls. Grow Animals has been available since July 2021 and has passed 10 million installs, with a 4.1 average across roughly 29,600 ratings. It is free to download, carries ads and offers in-app purchases.
That combination tells you most of what you need before installing. This is a game you return to in short sessions to tinker, collect and rearrange, and the fun comes from experimenting with trait combinations until something surprising appears. If that sounds like your kind of pastime, the rest of this review walks through how it works and what to expect.
Mixing potions and growing a cell into a pet
The central idea is a blend of experiment and patience. You combine concentrated potions representing cute, smart, strong and love, and whatever mixture you settle on produces a cell for a new animal. From there you clone and merge cells, gradually pushing the creature through its development until it reaches adulthood. The developer frames it as watching evolution unfold, and the early stages are meant to be as much of the draw as the finished pet.
What I find interesting is that the traits are not just labels. The app invites you to ask what an animal made entirely of love but no cuteness would look like, or which combination produces the strongest or smartest creature. That turns the potion mixing into a small puzzle rather than a cosmetic choice, and it gives you a reason to keep trying combinations instead of settling on one pet and stopping.
The growth phase adds a second layer on top. Cloning and merging cells is the mechanism by which a creature develops, so the same actions that create a new animal also move an existing one forward. It is a tidy loop: mix, grow, merge, repeat. Whether that loop holds your attention depends on how much you enjoy watching incremental progress rather than chasing a score.
Merging animals and filling out the collection
Once animals are fully grown, the game lets you combine them to produce something new. What merging two kittens creates is left for you to discover, which suggests the merge results are part of the reward for playing rather than something you can look up in advance. That is a reasonable way to keep a collection game interesting over time.
The roster is broad. You can raise every breed of dog and cat, bring dinosaurs back, and create mythical creatures such as dragons and unicorns. The developer describes dozens of animals to collect, and the collection itself is the long-term goal: each successful experiment adds to what you have. For players who like completion lists, that structure is the main hook.
There is also a home to build around the animals. You decorate their zoo and garden to your liking, and that decorating is tied to keeping the pets happy. On top of that you can pamper, feed, bathe and play with the animals you have made. Those care actions round out the simulation side, giving you something to do with a pet after the novelty of creating it has passed.
How the free version works
Grow Animals is free to download, it contains ads, and it offers in-app purchases. The content rating is Everyone.
I would treat the ads and purchases as part of the package rather than an afterthought. The model here is a familiar one. How the purchases are structured or how the ads are placed is not clear.
The upside of the free model is that you can try the core loop, mixing potions and growing a first animal, without committing money. If the collecting and decorating hold your interest, you will have a clearer sense of whether the game is worth more of your time.
What kind of player this rewards
This is a game for people who enjoy making things and filling shelves. If you have ever spent an afternoon customizing a character or arranging a room in a simulation, the mix of pet creation and zoo decoration here is aimed at the same instinct. The trait system gives that customization a puzzle-like edge, since the animal you get depends on the combination you choose.
It also suits players who prefer progress in small increments. Growing a cell into a fully formed creature, merging animals, and gradually expanding a collection are all slow-burn activities. Sessions can be short.
Where it asks more of you is in curiosity. The game expects you to experiment with potions and merges to find out what exists. Players who like being told exactly what to do next may find that openness less satisfying than those who enjoy poking at a system to see what it produces.
The studio behind it and how it has aged
Lion Studios' background matters when you are deciding whether to spend time on a free game. Grow Animals was last updated in July 2026, and the change was a bug fix.
The install and rating figures support the idea that this is a game people stick with: over 10 million downloads and a 4.1 average from a large number of ratings. Those numbers do not tell you whether you personally will enjoy the trait system, but they do suggest the core loop works for a broad audience.
The bug-fix update is a modest sign rather than a dramatic one. It is a modest update, which is reasonable for a game whose appeal rests on collecting and decorating.
A pet project for collectors and tinkerers
Grow Animals is worth installing if the pitch of designing your own animal appeals more than picking one off a menu. The trait potions, the cell-growing progression, the merges and the zoo decoration add up to a simulation with a clear identity, and the free download makes trying it a low-stakes decision.
The caveats are straightforward. It is free but ad-supported and offers purchases, and its pleasures are the slow kind: experimenting, collecting and arranging. Anyone looking for action or a tightly guided campaign will find the pace and the open-ended experimentation less engaging.
For collectors, decoration fans and players who like a system to poke at, this is a reasonable addition to a phone's game folder. Start with a single cell, see what your first mixture produces, and let the results decide whether you keep going.
The short verdict
A free, ad-supported pet-creation sim that rewards patient collectors and tinkerers more than action seekers.
What's new in version 2.0.3
- Bug Fixes
App specs
- Version2.0.3
- UpdatedJuly 25, 2026
- Downloads10M+
- RequiresAndroid 8.0+
- PriceFree
- Age ratingEveryone
Grow Animals: frequently asked questions
How do you create a new animal in Grow Animals?
You combine concentrated potions of cute, smart, strong and love in whatever mixture you choose, and that mixture produces a cell for a new animal. From there you clone and merge cells to grow the creature through its stages of development. The traits you pick determine what kind of pet you end up with.
Can you merge fully grown animals together?
Yes. Once animals are fully grown, the game lets you combine them to create new pets. Merging two kittens is given as an example and the result is left for you to discover, so the merge outcomes are part of the experimentation. This is one of the main ways the collection expands.
What kinds of animals can you raise?
The game covers every breed of dog and cat, dinosaurs, and mythical creatures such as dragons and unicorns. The developer describes dozens of animals to collect in total. You house them in a personal zoo that you decorate yourself.
Does Grow Animals cost anything?
The game is free to download. It contains ads and offers in-app purchases, so there are ways to spend money inside it. The content rating is Everyone.
What can you do with your pets besides creating them?
You can pamper, feed, bathe and play with the animals you have made. You also decorate their zoo and garden, which is tied to keeping the pets happy. Those care and decorating actions give you something to do with a pet after it is fully grown.
Pros
- Mix four traits to design unique pets
- Dozens of animals to collect and merge
- Decorate a zoo and garden
- Feed, bathe and play with pets
- Free to download with a large install base
Cons
- Contains ads
- Offers in-app purchases
- Slow, incremental progression
- No outcomes revealed in advance
Download Grow Animals
by Lion Studios
Free · In-app purchases · Contains ads · Official store listings