Tanksmith
Offline reef tank logbook
About
This offline logbook helps reef tank enthusiasts meticulously track water parameters, equipment maintenance, and livestock. It offers detailed logging for various parameters and test kits, with advanced features like dosing intelligence and coral growth timelines available through a one-time purchase.
What's New in Tanksmith
2.3
September 19, 2026
Tanksmith now speaks German, Japanese, French, Traditional Chinese, Spanish, and Italian — every screen, the dosing analyzer, and the Tank Report PDF included. New in Settings: Units. Choose °C and liters or °F and gallons. Readings you've already logged are converted on screen, never changed. Also fixed: screen titles that could disappear on iOS 26, and the version number shown in Settings.
MoreSubscriptions & In-App Purchases
$9.99
Tanksmith Pro
Unlimited tanks, readings, photos & dosing.
Developer apps
FAQ
Does Tanksmith have ads?
No, Tanksmith is completely ad-free. The developers emphasize a private and uninterrupted user experience.
What is the cost of Tanksmith Pro?
Tanksmith Pro is a one-time purchase of $9.99. There are no subscriptions or additional in-app purchases beyond this.
Can I use Tanksmith on multiple devices?
Tanksmith is designed for offline use on a single device. The free tier supports one tank, and the Pro version enables multi-tank support on that device.
How often is Tanksmith updated?
The latest version, 2.3, was released on September 19, 2026. Updates are provided to enhance functionality and reliability.
What devices does Tanksmith support?
Tanksmith is available for iPhone and iPad, making it accessible to a wide range of iOS users.
Is Tanksmith suitable for beginners?
The free tier of Tanksmith offers plenty of features to evaluate its suitability for your reef keeping style. It's built for serious reefers but can be a valuable tool for those learning.
What kind of privacy does Tanksmith offer?
Tanksmith prioritizes user privacy by not collecting, transmitting, or sharing any data. It operates entirely offline with no third-party SDKs.
What age rating does Tanksmith have?
Tanksmith has an age rating of 4+, indicating it is suitable for a broad audience.