Terms of Use
Last updated 12 November 2026
These terms are an agreement between you and Nautiluse Limited, a company registered in England and Wales (company number 14904815), registered office 71-75 Shelton Street, Covent Garden, London WC2H 9JQ, United Kingdom ("Nautiluse", "we"), for your use of the 1in8 app and website. By creating an account or using 1in8 you accept them. Our Privacy Policy explains how we handle your data.
1. Who can use 1in8
You must be at least 13. If the law of your country requires a parent's or guardian's consent at your age, you need that consent, and your parent or guardian accepts these terms on your behalf.
2. Your account
You sign in with Apple or Google; there is no separate password. You are responsible for activity on your account and for keeping access to the Apple or Google account you used. You can delete your account at any time in the app (Settings › Delete account) or by email (see Delete your account); it is switched off at once, can be restored for 14 days by signing in again, and is then deleted permanently.
3. Simulated lives
Every life in 1in8 is a simulation. The people, families and events are generated by the 1in8b Engine from public statistics; they are not real people and are not about you. Figures shown in a life (such as odds, incomes or life expectancy) come from the cited sources and the simulation, may be approximate, and are not medical, financial, legal or any other advice. Some lives include difficult events; where help lines are shown, they are real services you can contact.
1in8 is an independent app. It is not affiliated with or endorsed by 1 in 8 Billion. Lives are simulated with the 1in8b Engine (1in8b.life).
4. Lives, invites and rewards
Without Pro you have up to five lives; starting a life uses one, and one comes back every 30 minutes. If a life can't start because of a problem on our side, the life is given back. You can also get a life by watching a rewarded ad, up to a daily limit.
When a friend signs in to 1in8 for the first time with a new account through your invite, you get five lives. Each invite code is made for one friend, works once and expires after 7 days. Inviting yourself, creating accounts to collect rewards, or trading codes is not allowed, and there is a daily limit on rewards.
Lives, invite rewards and other in-app items have no cash value, cannot be transferred or sold, and may be changed as the game is balanced. We may remove rewards and suspend or close accounts that abuse them; where reasonable, we tell you why and how to contact us.
5. Pro
1in8 Pro is an auto-renewing subscription, weekly or yearly, sold through the App Store or Google Play. The price and period are shown before you buy. Payment is charged to your store account and the subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You manage and cancel it in your App Store or Google Play account settings; deleting the app or your 1in8 account does not cancel it. Refunds are handled by Apple or Google under their policies and your local consumer law. Pro lets you start as many lives as you like, up to a fair-use limit of 60 a day (new lives and family lines count together; the count starts again at midnight UTC). It also removes ads and includes the Pro features described in the app.
6. Ads
Without Pro the app shows ads, served by Google AdMob. How ads use your data, and how to change your ads choice, is described in the Privacy Policy.
7. Conduct and community
You agree not to interfere with, overload, scrape, reverse engineer or attack the service or the simulation behind it, except where the law allows it, and not to use 1in8 to break the law.
Other people can see your username, the lives you choose to post and your likes. There is no tolerance for objectionable content or abusive users. You agree not to:
- choose a username that is offensive, hateful, sexual or threatening, or that pretends to be another person, 1in8 or Nautiluse;
- use usernames, posts or likes to harass, bully, threaten or target anyone;
- post or promote anything illegal, or anything that sexualises or endangers children;
- farm likes or board places with extra accounts, scripts or arrangements with others, or otherwise manipulate the feed or the boards.
You can report a post or an account from its menu, and block an account so that neither of you sees the other's lives, profile or likes. We review reports within 24 hours. We may remove posts, reset a username, take places off the boards, and suspend or close an account that breaks these rules, without notice where the breach is serious. Where reasonable, we tell you why and how to contact us.
8. Content and licence
The app, its design and its text belong to Nautiluse or its licensors; data sources are credited in the app. You get a personal, non-transferable, revocable licence to use 1in8 for your own, non-commercial use.
9. Availability and changes
We may update, change or discontinue features. We try to keep 1in8 available but do not promise uninterrupted service; the simulation may sometimes be busy. If we change these terms in a way that matters, we will tell you in the app before the change takes effect; if you keep using 1in8 afterwards, the new terms apply. If we discontinue the service, active Pro subscribers will be told in advance and refunds will be handled as the store and the law require.
10. Liability
1in8 is provided "as is". To the extent the law allows, we are not liable for indirect or consequential losses or lost data, and our total liability to you is limited to the amount you paid us in the 12 months before the claim. Nothing in these terms limits liability that cannot be limited by law, or your rights as a consumer under the mandatory law of the country where you live.
11. Law and disputes
These terms are governed by the laws of England and Wales, without depriving you of the protection of the mandatory consumer law of your country of residence. Please contact us first so we can try to resolve any problem; you may also bring a claim before the courts or consumer bodies of your country of residence where the law allows.
12. Apple
If you downloaded 1in8 from the App Store, these terms are between you and Nautiluse, not Apple. Apple is not responsible for 1in8 or its content, has no obligation to provide support or maintenance, and is not responsible for claims relating to it. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them. Apple's standard Licensed Application End User License Agreement also applies, except where these terms are more favourable to you.