https://day100.co/ en-us http://blogs.law.harvard.edu/tech/rss https://day100.co/account Fri, 05 Jun 2026 13:54:51 +0000 https://day100.co/account https://day100.co/signin Fri, 05 Jun 2026 13:54:57 +0000 https://day100.co/signin https://day100.co/download Fri, 05 Jun 2026 13:55:02 +0000 https://day100.co/download Last updated: 7 August 2026This Privacy Policy explains how Day 100 ("Day 100", "we", "us") collects, uses, and protects your information when you use the Day 100 mobile app and related websites at day100.co and day1.at (together, the "Service"). Day 100 is operated by Little Polar Apps Ltd, a company registered in England & Wales, based in Ipswich, United Kingdom. For the purposes of UK data protection law, Little Polar Apps Ltd is the data controller.Information we collect Account information. When you create an account we collect your email address and a password. If you sign in with Apple or Google, we receive your name and email address from that provider. Profile information. Your display name, optional username and avatar, and the preferences you set during onboarding: fitness level, goals, and preferred time of day. Activity data. The challenges you create and your daily check-ins â including targets, what you logged, streaks, grace days, and completion dates. This is the core data that powers your 100-day grid. Subscription information. If you purchase Day 100 Pro, we and our subscription provider receive your purchase and entitlement status and a subscription identifier. Your payment is processed by Apple or Google; we never receive your full card details. Support communications. Any information you choose to send us when you contact us for support. Technical information. Basic device and app information needed to operate and secure the Service. We do not use third-party advertising or cross-app tracking, and we do not sell your personal data.How we use your information To provide the Service â create your account, track your challenges and check-ins, calculate streaks, and render your grid. To send you the daily reminders you enable. Reminders are scheduled locally on your device; you can turn them off at any time in Settings. To manage your subscription and unlock Pro features. To generate AI training plans, where available. When you request a plan, your profile details (such as fitness level, goals, and schedule) are sent to our backend, which uses a third-party AI service to produce the plan. We do not send your plan requests to advertisers. To enable sharing. When you share a challenge, we generate a short link (via day1.at) to a public preview page showing your challenge and progress. Anyone with the link can view that page, so only share it with people you choose. To respond to your requests, keep the Service secure, prevent abuse, and meet our legal obligations.Legal bases (UK/EU users)We process your information to perform our contract with you (providing the Service), on the basis of your consent (for example, notifications), for our legitimate interests (keeping the Service secure and improving it), and to comply with our legal obligations.Service providersWe share information with trusted providers who process it on our behalf, only as needed to run the Service: Supabase â hosts our database, authentication, and file storage. Your account and activity data are stored here, in a data centre in the United Kingdom / European Union. RevenueCat â manages subscription status and entitlements. Apple and Google â provide sign-in and process subscription payments through the App Store and Google Play. Stripe â processes payments for trainer plan purchases, where that feature is available. Cloudflare â delivers and secures our websites and the day1.at short links. Our backend (Expanse) at day100.co / api.day100.co, and the third-party AI service it uses to generate training plans.International transfersSome of our providers are based outside the United Kingdom, including in the United States. Where personal data is transferred internationally, we rely on appropriate safeguards such as the UK International Data Transfer Agreement or Standard Contractual Clauses.Data retentionWe keep your information for as long as your account is active. If you delete your account, we delete or anonymise your personal data, except where we must retain certain records (such as transaction records) to meet legal or accounting obligations.Your rightsDepending on where you live, you may have the right to access, correct, delete, restrict, or object to our processing of your personal data, to data portability, and to withdraw consent. To exercise any of these rights, or to request deletion of your account and data, email us at privacy@day100.co. You also have the right to complain to the UK Information Commissioner's Office (ICO) at ico.org.uk.ChildrenDay 100 is not directed to children under 13, and we do not knowingly collect personal data from children under 13. If you believe a child has provided us with personal data, please contact us and we will delete it.SecurityWe protect your information using encryption in transit, access controls, and reputable infrastructure providers. No method of transmission or storage is completely secure, but we work to protect your data and to respond promptly to any issues.Changes to this policyWe may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date above and, where appropriate, notify you in the app.Contact usQuestions about this policy or your data? Email privacy@day100.co.Little Polar Apps Ltd, Ipswich, United Kingdom. https://day100.co/privacy Fri, 05 Jun 2026 13:55:22 +0000 https://day100.co/privacy Last updated: 21 August 2026These Terms of Use ("Terms") are a legal agreement between you and Little Polar Apps Ltd ("Day 100", "we", "us"), a company registered in England & Wales, governing your use of the Day 100 mobile app and related websites at day100.co and day1.at (the "Service"). By creating an account or using the Service, you agree to these Terms. If you do not agree, do not use the Service.The ServiceDay 100 helps you pick a daily fitness challenge and track it over 100 days. The Service is provided for your personal, non-commercial use. We may add, change, or remove features at any time.Your accountYou need an account to use most of the Service. You are responsible for keeping your login secure and for activity under your account. You must provide accurate information and be old enough to form a binding contract in your country (and at least 13). You can delete your account and associated data at any time from Settings â Account â Delete account.Day 100 Pro subscriptionsDay 100 Pro is an auto-renewing subscription offered on a monthly or yearly basis. The subscription title, length, and price are shown in the app before you purchase and on your app store's product page. Billing. Payment is charged to your Apple ID (or Google Play account) at confirmation of purchase. Auto-renewal. Your subscription renews automatically for the same period and price unless you cancel at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. Managing and cancelling. You can manage or cancel your subscription in your app store account settings (Apple ID â Subscriptions, or Google Play â Subscriptions). Deleting the app does not cancel a subscription. Free features. The core of Day 100 â one active challenge, the 100-day grid, daily check-ins, streaks and sharing â is free to use. Refunds. Purchases are handled by Apple or Google; refund requests are subject to their policies.Acceptable useYou agree not to misuse the Service: no unlawful, harmful, or abusive activity; no attempting to break, overload, reverse-engineer, or gain unauthorised access to the Service; and no using it to harass others or infringe their rights. Fitness challenges are undertaken at your own risk â see "Health disclaimer" below.Sharing and other usersIf you share a challenge or follow someone else's, certain progress information (such as a challenge's grid and streak, and your display name) may be visible to others as described in the app and our Privacy Policy. Do not share links with anyone you don't want to see that information. You are responsible for the content you choose to share.Health disclaimerDay 100 is not a medical service and does not provide medical advice. Consult a qualified professional before starting any exercise programme. You are solely responsible for exercising safely and within your own limits.Intellectual propertyThe Service, including its software, design, and content we provide, is owned by Little Polar Apps Ltd and protected by law. We grant you a personal, non-transferable, non-exclusive, revocable licence to use the app as intended. You retain rights to the content you create.Disclaimers and limitation of liabilityThe Service is provided "as is" and "as available" without warranties of any kind. To the fullest extent permitted by law, we are not liable for indirect, incidental, or consequential damages, or for any loss arising from your use of, or inability to use, the Service. Nothing in these Terms limits liability that cannot be limited by law.TerminationYou may stop using the Service and delete your account at any time. We may suspend or terminate access if you breach these Terms or misuse the Service.Changes to these TermsWe may update these Terms from time to time. When we do, we will revise the "Last updated" date above and, where appropriate, notify you in the app. Continued use after changes take effect means you accept the updated Terms.Governing lawThese Terms are governed by the laws of England & Wales, and disputes are subject to the exclusive jurisdiction of its courts, except where mandatory local consumer law provides otherwise.ContactQuestions about these Terms? Email hello@day100.co.Little Polar Apps Ltd, Ipswich, United Kingdom. https://day100.co/terms Fri, 05 Jun 2026 13:55:28 +0000 https://day100.co/terms https://day100.co/help Fri, 05 Jun 2026 13:55:31 +0000 https://day100.co/help