sprntr has no accounts and no sign-up. Your training history lives on your device and in your own iCloud, where we cannot see it. The app sends a small set of usage events to PostHog that are not linked to your identity, which you can turn off in Settings, and RevenueCat checks your App Store subscription. The website uses cookieless analytics. The long version is below.
sprntr is made by Offhours Labs Inc. (we, us). We decide how the data described in this policy is used, which makes us the controller of that data under EU and UK data protection law. You can reach us at support@sprntr.app.
Your training data stays with you. Your workout history, notes, feel ratings, time trials, program progress, and settings are stored on your device with SwiftData, Apple's database framework. If iCloud is on, they sync between your own Apple devices through CloudKit, in the private database of your iCloud account. We have no access to that data and keep no copy of it.
Apple Health. If you allow it, sprntr writes each completed session to Apple Health as a running workout. sprntr never reads anything from Apple Health and never sends Health data to us or to anyone else. You can turn access off at any time in iOS Settings → Privacy & Security → Health → sprntr.
Usage analytics (PostHog). Unless you turn analytics off (see § 7), the app sends a small set of events to PostHog, the service we use for product analytics. The events are: onboarding completed, training location set, workout started, completed, and abandoned, warm-up skipped, feel rating selected, time trial logged (the distance and week, not your time), program reset (with how many sessions were cleared), paywall viewed, the week 2 free-preview banner shown, and subscription purchase started and completed (with the plan you picked and whether the founder offer was showing), plus app installed, updated, opened, and backgrounded. Workout events also carry session totals: week and day, session type, reps completed and skipped, total sprint meters, session length, whether you skipped the warm-up or cool-down, your feel rating, and how many sessions you have completed in total. Your rep-by-rep splits and individual sprint times never leave your device.
Each event is sent with a random ID that PostHog's code in the app creates for this install, and with basic device and app context: device model and type, iOS version, app name, version, and build, your device language, time zone, screen size, and whether you are on Wi-Fi or cellular. The ID is not linked to your name, email address, Apple ID, or advertising identifier, and we never connect it to who you are. PostHog also receives your IP address with each request, uses it to estimate an approximate location (country, region, and city), and can store it with the event. We use these events only to see whether people keep training, where the app is confusing, and whether the free weeks and plans work, so we can improve sprntr. PostHog, Inc. processes them on servers in the United States (posthog.com/privacy).
Subscriptions (RevenueCat). Payment is handled by Apple. We never see your name, Apple ID, email address, or payment details. To know whether you have an active sprntr Pro subscription, the app uses RevenueCat. Each time the app checks your subscription (for example when the app opens or comes back to the foreground, when you open the subscription screen, and when you buy or restore), RevenueCat's code in the app sends RevenueCat:
RevenueCat uses this to confirm your purchase with Apple, tell the app what to unlock, and give us subscription reports. In RevenueCat's dashboard we can see the purchase history of each random app user ID (plan, prices paid, renewals, and cancellations), but nothing that tells us who you are. RevenueCat, Inc. processes this data in the United States (revenuecat.com/privacy).
Notifications. sprntr asks for notification permission before your first workout so it can alert you when a rest ends. Allowing it also switches on sprntr's reminder notifications: a weekly summary, training reminders (for example the night before a HIGH day, a check-in if you have been away for a while, and a note if your subscription ends), and celebrations for records and milestones. You can turn any of them off in the app under Settings → Notifications → Notification Preferences, or turn off all sprntr notifications in iOS Settings. Every notification is scheduled on your device. No reminder data is sent anywhere.
Email. If you email us, including through Settings → Send Feedback in the app, we receive your email address, your message, and any device details you include. We use them only to reply and to fix what you report.
sprntr.app is a set of static pages hosted by Cloudflare, which, like any web host, processes your IP address to deliver them. The site also uses four other services. Plausible Analytics records aggregate pageview counts: no cookies are set, no personal data is stored, and no tracking is performed across other sites. Plausible briefly processes your IP address to approximate your country and to deduplicate visitors, then discards it (policy at plausible.io/data-policy). PostHog captures a small set of conversion events (for example, an email signup) in cookieless in-memory mode: no cookies, no localStorage, no cross-page or cross-device tracking. The data is processed by PostHog in the United States. Google Fonts serves the web typography, which means your IP address is visible to Google when you load a page. Buttondown stores your email address if you sign up for the sprntr list (buttondown.com), so we can email you. You can unsubscribe at any time from any email we send.
The app shares data only with the two service providers named in § 2: PostHog for analytics and RevenueCat for subscriptions. Each processes the data on our behalf under its terms of service with us. We confirm that PostHog and RevenueCat process this data only to provide their services to us and protect it at least as well as this policy describes. Neither may sell it or use it for its own advertising.
PostHog and RevenueCat process data in the United States. When data from the EU, the UK, or Switzerland is transferred there, we rely on the transfer safeguards these providers offer, such as the European Commission's Standard Contractual Clauses.
Apple. iCloud, CloudKit, Apple Health, notifications, the App Store, and StoreKit are provided by Apple. Your use of them is covered by Apple's own privacy policy.
Turn off analytics. In the app, open Settings → Privacy and switch off Share Anonymous Analytics. Capture stops right away. A few events already queued in that session may still be sent, and from the next launch the analytics code is not started at all. You can switch it back on at any time.
Delete your training data.
Withdraw permissions. Turn off Apple Health access in iOS Settings → Privacy & Security → Health → sprntr. Turn off notifications in the app under Settings → Notifications, or in iOS Settings → Notifications → sprntr.
Data held by our providers. Email support@sprntr.app to ask for a copy of, or the deletion of, the analytics events or purchase records for your install. Because they are not linked to your identity, we can only find yours with something that points to them: for purchases, the Order ID from Apple's receipt email and roughly when you subscribed; for analytics, the dates and device you used sprntr on. Deleting purchase records does not cancel a subscription. To stop paying, cancel with Apple in iOS Settings → your name → Subscriptions.
Newsletter. Use the unsubscribe link in any email we send.
Legal bases (EU and UK). We process data on these grounds: our legitimate interest in understanding and improving sprntr, for usage analytics (you can object at any time by turning analytics off); the performance of our contract with you, for checking and providing your subscription; and your consent, for Apple Health, notifications, and the newsletter, which you can withdraw at any time as described in § 7.
Your rights. Depending on where you live, you may have rights to access, correct, export, or delete your personal data, to object to or restrict its processing, and to withdraw consent. Your training data is already in your hands: you can view, export, and delete it yourself as described in § 7. The data we and our providers hold is limited to support emails, your newsletter address if you joined, and the analytics events and RevenueCat purchase records, which are not linked to your identity. To exercise a right over that data, email support@sprntr.app and we will respond within the time the law requires. If you are in the EU or the UK, you can also complain to your local data protection authority.
California residents. We do not sell your personal information or share it for cross-context behavioral advertising, and we will not treat you differently for exercising your privacy rights.
sprntr is not directed at children under 13, and we do not knowingly collect data from children. If you believe a child has provided personal information through sprntr or the newsletter, contact us and we will remove it.
If this policy changes, we will post the update here with a new effective date. Material changes will be reflected in the app.
Questions about this policy or your data: Offhours Labs Inc., support@sprntr.app.
Effective 2026-10-04