Privacy policy

Effective 29 October 2026

ShoeGauge is a mileage odometer for your shoes. This policy describes exactly what the app stores, what it never collects, and how to erase everything.

ShoeGauge has no account and no sign-in. We, the developer, collect nothing and run no server that receives your data. Everything lives on your phone and in your own private iCloud, which we cannot access.

What ShoeGauge stores

• Your shoes: names and details you enter, plus each shoe's derived distance total.
• Your sessions: when you started and stopped wearing a shoe, the derived distance for that window, summaries of workouts that overlapped it, and an optional note you attach.
• Manual adjustments: mileage entries you add yourself.
• Your settings: units, reminder timing, and replacement threshold.

NFC tags carry only an opaque random id, never any information about you.

Health data

ShoeGauge asks for read-only access to two things in Apple Health: walking + running distance, and workouts. It uses them for one purpose: computing how far you moved while a shoe was active.

• Health data is read and processed on your device. Raw Health samples never leave your phone.
• Only the derived results (a distance total per session, and workout summaries) are saved with your shoes, and in iCloud they sit in CloudKit's encrypted fields.
• ShoeGauge never writes to Health.
• Health data is never used for advertising, marketing, data mining, or any purpose other than the mileage math above, and it is never sold or disclosed to third parties.

Motion data

While a shoe is on, ShoeGauge can read your iPhone's step distance (Motion & Fitness) to keep the live number moving until Apple Health catches up. It is shown on screen only: never saved, never backed up, and it never leaves your phone. Your saved mileage always comes from Health. You can turn it off in Settings → Privacy & Security → Motion & Fitness.

What ShoeGauge doesn't do

• No third-party analytics, tracking, or other SDKs.
• No advertising.
• No selling or sharing of your data with anyone.

Where your data lives

Your shoes and sessions are stored on your phone. So that a new phone or a reinstall brings your rack back, they also back up to your own private iCloud, using Apple's CloudKit. That data belongs to your Apple ID, counts against your iCloud storage, and is protected by Apple. The developer has no way to read it. If iCloud is off or unavailable, ShoeGauge keeps working and stores everything on your phone only.

Deleting your data

• In the app, Settings → Delete iCloud data removes everything ShoeGauge has stored in your iCloud.
• Deleting the app removes the data on your phone.
• You can also remove it from iOS Settings → [your name] → iCloud → Manage Storage → ShoeGauge.

Contact

Questions or data requests: privacy@shoegauge.app