Nothing
leaves the
device

One. Days Strong collects no personal data. There is no account, no sign-in, no user profile and no identifier of any kind.

Two. Everything you enter, meaning your habits, dates, notes, reasons, costs and goals, is written to a local IndexedDB database inside the app on your own device. It is never transmitted to us, because there is no server of ours for it to go to. The one copy that leaves the device is the automatic backup into your own iCloud described below, which we cannot see either.

Three. There is no analytics, no crash reporting, no advertising, no tracking of any kind, and no third-party SDK. This website has no cookies, no analytics and no embedded content; even its typefaces are served from this site rather than from a font provider, so visiting these three pages tells nobody anything.

Four. If you export a backup file, that file is yours alone. It goes wherever you choose to put it, and if you put it in a cloud drive, that provider’s policy applies to it, not ours. We cannot recover it for you and we cannot see it in the first place.

Five. Days Strong also keeps one automatic backup in your own iCloud, and it is on unless you turn it off. It is a single file in your iCloud Drive, under your Apple ID, on your storage — we have no access to it, no copy of it and no way to read it. It holds the same history the app holds. It deliberately outlives the app: delete Days Strong and reinstall it, and the app offers to put your history back, which is the whole reason the backup exists. It also means deleting the app is not by itself the same as erasing your data. To erase it, the app has a Delete everything control under You › Backup. It clears the database on this device and removes that iCloud file together, and it asks you to type the word first because there is no undo. If you are on an older version, or would simply rather do it yourself, delete the file in the Files app — it is visible in your own iCloud Drive under Days Strong, and removing it there removes it for good; switching the backup off in the app first stops a new one being written. Anything you have already exported by hand is yours to delete wherever you put it.

Six. The only party who knows you bought the app is the store that sold it to you, Apple, under their own privacy policy. We receive sales figures from them, never your identity. If you email support, we hold that email conversation, and nothing more.

Seven. Apple Health is optional and off unless you switch it on, and there are two separate switches. The step count reads one thing: your step total for that day, which fills a step goal you set yourself. Sleep reads one thing: the nights Health already holds, so you do not have to type them. It reads nothing else — not heart rate, not workouts, not distance, not weight — and it writes nothing back to Health, ever. iOS asks for each of the two separately, and refusing either leaves the rest of the app working exactly as it did. What is read is written to the same local database as everything else, and is therefore included in the iCloud backup described above if you have that on. It is never sold, never used for advertising, and never sent to us. Switch it off in the app and it stops at once. Revoke it in iOS Settings › Privacy › Health and the app carries on working as a tap.

Eight. From version 2.4 onwards, the app makes one request to the internet, and this paragraph is all of it. Earlier versions make none at all. At most once a day, shortly after you open it, Days Strong asks Apple’s public App Store lookup what the current version of Days Strong is, so it can tell you when a newer one exists and offer to take you there. The request carries one thing: this app’s public App Store number, which is identical in every copy ever installed. It carries no account, no identifier, no device name, no habit, no date and no body of any kind, and the answer is a version number. It distinguishes nobody from anybody. Apple sees a request for a public store listing, under their own privacy policy. If it fails, because you are offline or for any other reason, the app carries on exactly as it would have and says nothing. Nothing you have recorded is involved, and there is still no server of ours for anything to go to.

Rights of access, correction, export and erasure under the UK GDPR all apply to data a company holds about you. We hold none, so those rights are already satisfied by the design: your data is in your hands, exportable by you at any moment, and erased by you when you delete the app.

The app is not directed at children, and it collects nothing from anyone regardless of age.

If this policy ever changes, the new version will replace this page and the date below will change with it. Since the policy describes an app that collects nothing, the only change we expect to make is a clearer way of saying so.

Questions about privacy go to support@daysstrong.com.