Last updated: June 29, 2026
ReefLog is built to be private. Your aquarium data belongs to you and stays on your device.
Nothing. ReefLog has no user accounts and no servers. All of your tanks, readings, supplements, schedules, and settings are stored locally on your device. We do not collect, transmit, sell, or share any personal data.
ReefLog contains no third-party analytics, advertising, or tracking SDKs. It does not track you across apps or websites.
The optional one-time premium upgrade is processed by Apple through the App Store. ReefLog never sees your payment information. Apple's handling of that transaction is governed by Apple's privacy policy.
If you enable maintenance reminders, notifications are scheduled locally on your device. No notification data is sent to us or anyone else.
Because everything is stored locally, deleting the app removes all of your ReefLog data.
Questions? Email admin@tokshernandez.cc.