Tankbook: Aquarium Log
Water tests, trends, reminders
About
Log aquarium water parameters, view trends, and receive maintenance reminders. This app offers a free version with core features and a one-time purchase for unlimited tanks and history. It's designed for fishkeepers to manage their aquatic environments effectively.
What's New in Tankbook
1.0
August 25, 2026
Subscriptions & In-App Purchases
$9.99
Tankbook Lifetime
Unlimited tanks and history, forever
FAQ
What are the limitations of the free version of Tankbook?
The free version of Tankbook allows for one tank, unlimited measurements, CSV export, two reminders, and 30 days of trend history. Additional features like unlimited tanks and full trend history require a one-time purchase.
How does Tankbook handle user data privacy?
Tankbook prioritizes user privacy by not requiring an account or cloud storage. All data is stored locally on your device, and the app explicitly states that it collects no user data.
What parameters can I log with Tankbook?
You can log key water parameters including pH, temperature, ammonia, nitrite, nitrate, GH, and KH. The app displays the last logged value as a reference for quick logging.
Does Tankbook offer a subscription service?
No, Tankbook does not offer a subscription service. The premium features are unlocked with a one-time purchase of 'Tankbook Lifetime'.
What devices is Tankbook compatible with?
Based on the provided data, Tankbook is currently supported on iPhones. Information regarding Android compatibility is not available.
How often is Tankbook updated?
The app was last updated on August 25, 2026, with version 1.0. This indicates it is a new release, and future update frequency will depend on developer plans.
What do users like most about Tankbook?
User sentiment data is limited with only one rating available. However, the description highlights features like fast logging, clear trends, and maintenance reminders as key benefits for fishkeepers.
Is Tankbook suitable for beginners?
Yes, Tankbook is designed for fishkeepers and aims to be a reliable tool. Its straightforward logging and reminder system can be beneficial for both new and experienced aquarists.
