Nostos Terms of Service

Effective date: October 13, 2026 Last updated: October 19, 2026

These Terms are an agreement between you and the Nostos team ("Nostos," "we," "us"). By creating an account or using the Nostos app or website, you agree to these Terms and to our Privacy Policy and Consumer Health Data Privacy Policy. If you don't agree, please don't use Nostos.

1. What Nostos is

Nostos is a free habit app. You choose daily goals, check in when you meet them, earn in-app points called FitCoins, build streaks, and move Tigur's story forward. Some goals are checked using Apple Health data you choose to share; others you tick off, count, or confirm with a photo.

Nostos is not a medical service. Nothing in the app is medical, fitness, nutrition or mental-health advice. Check with a doctor before starting a new exercise routine, and stop if something hurts. The Voice Diary is a private journal, not therapy or counselling. If you're struggling or in crisis, call or text 988 (US) or your local emergency number.

2. Who can use Nostos

• You must be 13 or older. If you're 13 to 17, use Nostos with a parent's or guardian's permission.
• The beta (TestFlight) is for testers 18 and older.
• Nostos is currently offered in the United States, Canada, Australia, New Zealand and Singapore.
• One account per person. Keep your sign-in details private; you're responsible for activity on your account.

3. FitCoins

• FitCoins are earned only by using the app: meeting goals, checking in, and gifts from Tigur or the Nostos team. They can't be bought, and the app has no purchases.
• FitCoins are not money. They have no cash value, can't be cashed out, sold or transferred to another account, and exist only inside Nostos.
• You can spend FitCoins on gear for Tigur, on partner discount codes, and, during the beta, on small Amazon.com gift cards (see §4).
• Some challenges cost FitCoins on days you miss your goal (at most 30 FitCoins per challenge). The app shows this before you start.
• We may change how many FitCoins things earn or cost. If FitCoins were credited by mistake (for example, a bug), we may correct the balance.
• FitCoins end when your account is deleted.

4. Rewards

Partner discount codes. Brands may offer codes you can unlock with FitCoins. The brand sets the offer and its terms, and you deal with the brand directly when you use a code. We don't share your information with partner brands, and we're not responsible for their products, prices or whether they honour a code (though we'll try to help if one doesn't work).

Beta gift cards. During the beta, testers in the US aged 18 and older can swap FitCoins for small Amazon.com eGift cards:

• up to $5 per person in total, in the amounts shown in the app;
• only after your account has been used on 5 different days;
• while the program's limited budget lasts. We may pause or end it at any time, and it ends with the beta;
• sent by hand to your account email, which you need to confirm first (the app sends a code), usually within 2 to 4 days.

We review each request and may refuse or cancel one that looks like abuse (for example, FitCoins from manipulated data, several accounts, or a bug). If we cancel a request, we return its FitCoins. Amazon.com gift cards are subject to Amazon's terms. Amazon and Apple are not sponsors of Nostos or this program. There is no chance element and nothing to purchase.

5. Health data and photos

Apple Health access is optional and read-only, and is used only to check your own goals. Photo checks and voice entries are processed on your iPhone. Our Privacy Policy explains exactly what we collect and keep.

6. Play fair

Please don't:

• fake or manipulate health readings, check-ins or photos, or use bugs, scripts or multiple accounts to earn FitCoins or rewards;
• attack, overload, probe or reverse-engineer our servers or the app, or get around its limits or security;
• use Nostos for anything unlawful, or to harass anyone.

If you find a bug that hands out FitCoins, please tell us at [email protected] instead of using it. If someone breaks these rules, we may remove FitCoins earned that way, cancel reward requests, or suspend or delete the account.

7. Feedback

If you send ideas, bug reports or feedback, we may use them to improve Nostos without owing you anything. Thank you, it genuinely shapes the app.

8. The beta and changes to Nostos

Nostos is in beta: expect bugs, and features may change, move or be removed. We work hard to keep your progress safe and backed up, but we can't promise the service will always be available or error-free. We may update, pause or stop Nostos. If we stop it, we'll try to give reasonable notice in the app or by email.

9. Ending your account

You can delete your account any time in Settings → Data & privacy → Delete my data. This permanently deletes your account, progress and FitCoins (see the Privacy Policy for details). We may suspend or close an account that breaks these Terms.

10. Ownership and licence

Nostos, Tigur, the story, art and app are owned by the Nostos team. Your use of the iOS app is also covered by our License Agreement. Your goals, check-ins and other content stay yours. You let us store and process them only to run Nostos for you, as the Privacy Policy describes. Voice Diary entries never leave your iPhone.

11. Apple

These Terms are between you and the Nostos team, not Apple. Apple isn't responsible for Nostos, its content, rewards or partner offers, and has no obligation to provide support for it. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them.

12. Disclaimers and limits

Nostos is provided "as is" and "as available", without warranties of any kind, to the extent the law allows. To the extent the law allows, we aren't liable for indirect, incidental or consequential damages, or for lost data or profits, and our total liability to you for any claim about Nostos is limited to US $50. Some places don't allow these limits, so they may not fully apply to you, and nothing here limits rights you have under laws that can't be waived.

13. Changes to these Terms

If we change these Terms, we'll update the date above. For an important change, we'll tell you in the app or by email before it takes effect. Using Nostos after a change means you accept the new Terms.

14. Contact us

The Nostos team · Support: [email protected] · Privacy: [email protected] · Website: https://nostos.fit

If you have a problem with Nostos, please email us first. Most things can be fixed quickly.