Where is my data?

The short answer

Your data lives in a database on your phone. Every food log, weigh-in, workout, goal, custom food, saved meal, and remembered fact is written to local storage on the device you are holding. Metrify's servers run the AI conversation, but they do not keep a copy of your log. There is no account database with your history in it anywhere.

This is a deliberate trade. Nothing about your body or your habits sits on a server waiting to be breached, subpoenaed, or sold. In exchange, your phone is the single copy, and a single copy is only as safe as you make it. The rest of this page is about exactly that.

What "on your device" means in practice

Three consequences follow directly, and it is better to know them now than to discover them later:

There is no automatic cloud copy from Metrify. Signing in on a second device does not bring your history with it. There is no web app to log into from a laptop, and that is not an oversight; a web app would require your data to live on a server.

Deleting the app deletes the data. Uninstalling Metrify removes its database with it, on both platforms. Reinstalling gives you a fresh, empty app. If there is any chance you will want your history back, export a backup before you uninstall.

Wiping data in the app is permanent. Profile → Advanced → Wipe all data erases your logs, goals, profile, and chat on that device. Your account and sign-in survive, but the data does not come back. Deleting your account entirely is a separate step, described on the delete account page.

How to back up

In the app: Profile → Advanced → Export data.

Metrify writes your entire dataset to a single file named like metrify-backup-20260808-181530.json and hands it to the system save dialog, so you choose where it goes: iCloud Drive, Google Drive, the Files app, or straight into an email to yourself. Anywhere that is not the same phone is a good choice.

One file is one complete snapshot. It contains:

• Food logs, weigh-ins, and exercise logs
• Workout sessions, sets, routines, and custom exercises
• Goals and your profile settings
• Custom foods and saved meals
• The assistant's remembered facts about you, such as dietary restrictions
• Sleep logs and health sync history

Two things deliberately stay out: chat transcripts and chat photos, which are treated as conversation rather than records, and your sign-in, which never leaves the device it belongs to. The backup file itself is plain, unencrypted JSON that you can open and read, so store it somewhere you trust, the same way you would treat an exported bank statement.

How to restore

In the app: Profile → Advanced → Import data, then pick the backup file.

Importing is a full replacement, not a merge. Everything currently in Metrify on that device, including chat history, is replaced by the contents of the backup, and the app makes you type REPLACE before it will proceed. Two safety properties are worth knowing:

A failed import cannot half-destroy your data. The import commits all at once. If the file is damaged, invalid, or the import fails partway, your existing data is left exactly as it was.

Backups are forward-compatible, not backward. A current app opens old backups fine. A backup made by a newer version of Metrify than the one installed is refused with a prompt to update the app first.

Switching phones

This is where the two platforms genuinely differ, and where most local-storage apps quietly lose people's history.

iPhone to iPhone: your data comes along. Metrify's database is included in your phone's iCloud or computer backup. Setting up a new iPhone from that backup, or using Apple's direct device-to-device transfer, restores Metrify with your history intact. Note the difference between restoring a whole phone backup, which brings the data, and simply reinstalling the app from the App Store, which does not.

Android to Android: your data does not transfer on its own. Metrify opts out of Google's cloud backup on purpose, because the database is not encrypted and we would rather not ship your health history to a server as a side effect of a phone upgrade. The move is manual: Export data on the old phone, get the file to the new phone, Import data there. It takes about a minute, but it only works if you still have the old phone or a backup file, so export before you trade in, reset, or lose access to the old device.

Crossing platforms in either direction works the same way as an Android move: export on one phone, import on the other. The backup format is identical on both.

Coming from another app

There is no file importer for other trackers' exports. What works instead:

Backfill by chat. The assistant can log history, not just today. Pasting or dictating a list of past weigh-ins, for example "backfill my weight: June 1 182, June 15 180, July 1 178", records the whole series in one message. The same works for filling in past meals or workouts you want on the record.

Health sync. Weight, workouts, steps, and sleep that another app already wrote into Apple Health or Google Health Connect can flow in through Metrify's sync, with you approving what gets logged.

Habits worth having

Export a backup on some schedule that matches how much history you are willing to lose: monthly is plenty for most people. Export one immediately before deleting the app, wiping data, resetting a phone, or trading a phone in. Keep the file in a cloud drive rather than on the same phone, since a backup stored only on the device it protects is not a backup. Old files stay useful, so keeping the last two or three around costs nothing and covers you if a recent export went wrong.