FinSteps Aquarium Step Counter
Walk 10k: Grow a Fish Tank Pet
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
FinSteps is now free to play. Seven new fish just swam in — Lionfish, Narwhal, Whale Shark and more. Your steps keep them alive.
Your steps grow a living aquarium.
FinSteps turns the walking you already do into a reef full of fish. Hit your daily step goal and the tank thrives — you earn pearls, unlock new species, and keep the water clear. Let it slide and the water clouds over and your fish start to suffer. It's a virtual pet that lives on your real-world movement.
FREE TO PLAY
Download it, name your first fish, and start walking.
NO GPS. NO ACCOUNT. NO ADS.
FinSteps reads one thing from Apple Health — your step count — and it never leaves your iPhone. You don't have to walk anywhere in particular, change your pace, or look at your screen. Just walk like you already do.
WHAT YOU DO
• Set a daily step goal (default 8,000, adjustable 1,000–100,000)
• Walk. Your iPhone counts steps automatically through Apple Health
• Hit your goal and watch the celebration when you cross the line
• Earn pearls and spend them in the shop on fish and decorations
• Grow streaks. Unlock milestone badges and rare species
FISH TO COLLECT
Start with a hardy guppy that survives even the roughest week. Then streak your way through 19 species, from the Shallows out to Open Water: Moorish Idol, Jellyfish, Seahorse, Mandarinfish, Octopus, Pufferfish, Betta, Lionfish, Blacktip Shark, Sea Turtle — and, for the long haul, a Hammerhead Shark, a Narwhal and a Whale Shark. Furnish the tank with a castle, coral, a sunken ship, a giant clam, a sea anemone and a bubbling diving helmet. Prestige streaks at 90, 180 and 365 days unlock exclusives you can't buy — the Koi, Manta Ray and Golden Arowana.
THE SWELL
Every goal you hit pays pearls, and a streak multiplies them — up to 3× at Full Swell. Miss a day and the Swell eases instead of resetting, so a bad day costs you a little, never everything.
STREAKS THAT REWARD YOU EARLY
The first three streak days each unlock something. You'll see progress on day one, not day seven. Week Warrior, Fortnight Fin, Monthly Master and beyond wait for the long haul.
FORGIVING BY DESIGN
Miss a day and you still earn a few effort pearls for what you walked. Fish take a heart of damage, but the tank recovers fast when you come back. Even fish that pass on rest in a Memorial for three days — bring them back with pearls before they float away for good.
PRIVATE BY DEFAULT
FinSteps has no accounts, no ads and nothing to sign up for. Your aquarium, your streak and your history live on your iPhone.
REQUIREMENTS
• iPhone with iOS 17 or later
• Apple Health access for step counting
• Optional: Apple Watch — steps from your Watch count too
Terms of Use (EULA): https://finsteps-web-tau.vercel.app/terms
Privacy Policy: https://finsteps-web-tau.vercel.app/privacy
Made by an independent developer. Feedback shapes what gets built next — reach out through the support link.
• FinSteps is now free to play. Download it, name your guppy, start walking.
• Seven new fish: Moorish Idol, Mandarinfish, Lionfish, Blacktip Shark, Hammerhead Shark, Narwhal and Whale Shark. Plus a Diving Helmet, Sea Anemone, Giant Clam and Sunken Ship for the tank.
• The Swell: streaks now multiply the pearls each goal pays, up to 3×. A missed day eases it instead of wiping it out.
• A fresh look, with a new hand-drawn pixel reef behind your fish.
• The Shop is grouped by category — swipe from the Shallows out to Open Water. Decorations can be put away on a shelf and placed back anytime.
• Today's steps now live in Stats.
The developer, Michael Curtis, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Curtis
- Size
- 31.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium Lifetime $79.99
- Premium Annual $24.99
- Premium Monthly $3.99
- Copyright
- © 2026 Michael Curtis