Privacy Policy

Last updated November 6, 2026

In short: everything stays on your iPhone. FoldTally doesn't collect, share or sell any of your information.

FoldTally ("the app") is made by Matthew Vincent. This policy explains what the app does with your information.

What the app records

To count folds, FoldTally saves on your device:

• the date and time of each open and close of your iPhone Duo;
• how wide you opened it (the hinge angle);
• the time spent closed, half open and unfolded while the app is running;
• if you turn on Save fold locations, roughly where each unfold happened (accurate to about 100 metres).

Where it's stored

All of this is stored only on your iPhone, in the app's own storage. It is included in your device backups (for example iCloud Backup) the same way as other app data on your phone. We don't run any servers, and the app doesn't send your data anywhere.

How long it's kept

Each fold is kept in full detail (time, angle and location, if you turned that on) for 30 days. After that, FoldTally replaces those folds with a daily total: how many times you opened and closed your phone that day, at which hours, the average angle, the time spent in each position, and, if you turned on fold locations, a count for each rough area. Your all-time count, charts and records stay complete. Daily totals are kept until you delete them.

Location

FoldTally asks for location access ("While Using the App") only if you turn on Count in background or Save fold locations:

• Count in background uses low-power location services so iOS keeps FoldTally running and it can notice folds while you use other apps. FoldTally doesn't save or use your location for this.
• Save fold locations tags each unfold with your approximate location so you can see a map of where you unfold. When the app shows place names, it sends those coordinates to Apple Maps to look them up, under Apple's privacy policy.

You can turn either off in FoldTally's Settings, or remove location access in iPhone Settings → FoldTally at any time.

Motion sensors

With background counting on, FoldTally reads your phone's magnetometer to detect when the hinge opens and closes. These readings are processed on your phone and not stored, apart from a small calibration that helps detection work on your phone.

Notifications

If you allow notifications, FoldTally schedules a reminder on your phone in case background counting stops. Notifications are created on your device. No notification service or server is involved.

What we don't do

• No account or sign-in.
• No analytics, advertising or tracking.
• No selling or sharing of data with anyone.
• No data collection by us: FoldTally's App Store privacy label is "Data Not Collected."

Your control

You can export your folds or your daily totals as CSV files (Settings → Data), delete individual folds or days in History, or delete all data (Settings → Delete all data). Deleting the app deletes all of its data from your phone.

Children

FoldTally is suitable for all ages and doesn't knowingly collect any information from anyone, including children.

Changes

If this policy changes, the updated version will be posted on this page with a new date.

Contact

Questions? Email mattjvincent@gmail.com.