Privacy Policy

Last updated: 11 September 2026

You can record medication and weight in Plainlog on your phone.

The short version

There is no account. There is no server. Plainlog does not run analytics, does not use a crash reporter that sends your health data anywhere, and does not show advertising. Everything you log (doses, weights, notes) is stored in a single database file on this device. That file does not leave the device unless you export it and send it somewhere yourself.

What Plainlog stores, and where

Doses, medications, weights, notes, and the timestamps attached to them are stored in a local database inside the app’s own storage on your device. Nothing is transmitted anywhere as part of normal use: opening the app, logging a dose, viewing your history or your estimated-level chart, and setting a reminder all happen entirely on-device.

Apple Health and Health Connect

If you choose to connect Apple Health or Health Connect, Plainlog reads and writes weight data through Apple’s HealthKit framework or Google’s Health Connect, on your device, under permissions you grant and can revoke at any time in iOS Settings or in the Health Connect app. Plainlog does not use Health data for advertising, marketing, or any purpose other than showing it back to you inside the app, and does not sell or share Health data with any third party.

Export

You can export your log as a CSV file or a PDF, for your own use or to bring to an appointment. An export leaves the app only when you choose to share, save, or send it through your device’s own share sheet, the same mechanism any app uses to save a file to Files, AirDrop it, or attach it to an email. Plainlog has no part in where that file goes after you choose a destination.

Backup and restore

Plainlog does not have a backup or restore feature. Export (above) is one-way: it hands you a CSV or a PDF, and there is no way to load either of those back into the app to reconstruct your log. Plainlog itself has no part in moving your log to a new phone. The path that does that is your device’s own backup, described next.

Your device’s own backup

Your operating system includes Plainlog’s database file in iCloud Backup on iOS or Android Auto Backup on Android. That is the same system backup that preserves your other apps’ data, if you have that feature turned on in your device settings. This is your operating system backing up your device, not Plainlog uploading anything. Plainlog makes no network connection to do this and has no way to turn it off from inside the app. If you do not want your log included in your device’s own backup, your device’s settings control that. Plainlog’s do not.

Subscription

Logging, your full history, CSV export and reminders are free. An optional subscription unlocks estimated levels, Apple Health/Health Connect sync, and the PDF summary. Payment is handled entirely by Apple or Google, through their standard subscription systems. Plainlog never sees your card details. Whether your subscription is active is checked through the app store on your own device. No third-party subscription service is involved, and none of your health data (doses, weights or notes) is sent anywhere as part of a purchase or a subscription check.

What we don’t do

Deleting your data

Deleting an entry inside the app is permanent. There is no undo or recovery. Deleting the app deletes the database with it. On iOS, reinstalling will not bring your log back: iCloud Backup only restores when you set up a phone from it. On Android, Auto Backup can restore your log on reinstall, if it was switched on. Neither is under Plainlog’s control. Export first if you want a copy you keep yourself.

Children

Plainlog is not directed at children and is not intended for use by anyone under 17. We don’t knowingly collect information from children, and since the app collects nothing from anyone regardless of age, there is no children’s data on our end to be concerned about.

Changes to this policy

If this policy changes, the “last updated” date above will change with it. Because Plainlog has no way to contact you directly, check this page periodically if you want to stay current.

Data controller

Plainlog is published by Fantinnovation. Questions about this policy or a request about your data go to support@plainlog.app.

Your rights

Under the EU and UK GDPR, you can ask a data controller to access, correct, delete or export personal data it holds about you. Plainlog has no account, no server and no analytics, so it holds no personal data about you to access, correct, delete or export. There is nothing to fulfil, because nothing was collected. If you believe that is wrong in a specific case, contact us at the address above.

Contact

Questions about this policy or your data: support@plainlog.app