Support & FAQ

Download Thinner from the App Store, then complete a short onboarding to set your goal. You'll hatch your cheetah-cub companion from its egg and give it a name. From there, your daily quests are ready and you can start earning XP right away. Thinner is available on iPhone only.

When you first open the app, you'll be guided to hatch your cheetah cub from its egg. Once it hatches, you give it a name that's yours to keep. Your companion is the heart of the app: it grows, levels up, and reacts as you build healthy habits.

Each day you get a set of quests across areas like steps, hydration, cardio, strength, nutrition, sleep, mindfulness, and accountability. Mark them complete as you go to earn XP. Quests refresh daily, so there's always a fresh set to tackle.

You earn XP (experience points) for completing quests. As your XP grows, you and your companion level up. Higher levels unlock more of the app and show how far you've come on your journey.

A streak counts the consecutive days you stay active and complete quests. Keeping your streak going builds momentum and keeps your companion thriving. There's a short grace window so a single off day doesn't immediately erase your progress, but try to check in daily.

When your companion has enough energy from your tiny wins, it heads out on an Adventure to one of five hand-painted places — Sunny Meadow, Whispering Woods, Pastel Cove, Frosted Pines, or the dusk-only Twilight Glade. Adventures take a little time, and your cub returns with something to show for the trip. They're a fun reward for staying consistent.

Collectibles are special items your companion brings back from Adventures. There are 27 to find across five themed sets, in Common, Uncommon, and Rare rarities. You can browse everything you've found in your collection — keep going on Adventures to discover them all.

Head to the Style tab — plus the in-app Toys options — to customize your companion's room and look with palettes, accessories, outfits, and care items. You earn Charms from your wins and spend them on decorations. As you progress, you'll have more ways to make the space feel like home.

The Plan is your guide for what to focus on next, and the Lab is where your companion narrates your journey: your weight trend, your wins, your streak, and the areas you're working on. Together they help you see your progress and stay on track.

When you hit a milestone like meeting your buddy, a level-up, a streak, or an adventure find, Thinner creates a ready-made card you can save or share however you like. It's a nice way to celebrate your wins and stay motivated.

Thinner is a subscription app, with weekly and yearly plans offered through the Apple App Store. There is no free trial: a subscription is required to use the app. Prices are shown in the app before you subscribe and may vary by region. Subscriptions renew automatically unless you cancel at least 24 hours before the renewal date.

Subscriptions are managed by Apple, not in the app. Open your iPhone Settings, tap your name (Apple ID) at the top, choose Subscriptions, select Thinner, and cancel there. You'll keep access until the end of your current billing period.

If you reinstall the app or switch devices, open Thinner and use the Restore Purchases option (on the paywall or in settings) while signed in to the same Apple ID you subscribed with. Apple will restore your active subscription.

You can delete your account directly in the app from the settings screen. This removes your account and personal data. Note that deleting your account does not cancel an active Apple subscription — cancel that separately in iPhone Settings > Apple ID > Subscriptions.

Yes. Your data is encrypted in transit and at rest, and we never sell your personal information. We don't share your weight logs with advertisers. You can delete your account and data at any time from within the app. See our Privacy Policy for full details.

Thinner is built for iPhone and is available on iOS only. There is currently no Android or web version. Make sure you're running a recent version of iOS and have the latest app update from the App Store for the best experience.