AquaMaster: Aquarium Log Book

Monitor your fish tank health

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

New Home Screen Widgets show your tank status at a glance! Camera-scan test strips, smart reminders, and now great for turtles & axolotls too. Keeping fish can be elegant and scientific! "AquaMaster: Aquarium Log Book" is the ultimate tank management app designed for aquarium enthusiasts. Whether you are a beginner with a simple goldfish bowl, or a seasoned hobbyist maintaining high-end aquascapes and marine reefs, this app helps you wave goodbye to messy paper logs and keep your aquatic ecosystems thriving. 【Core Features to Protect Your Aquarium】 ● Multi-Tank Management - Support for creating and tracking multiple aquariums (e.g., freshwater, reef, planted, shrimp tanks) simultaneously. - Keep separate water logs, maintenance schedules, and stats for each tank, ensuring your aquatic life stays perfectly organized. ● Scientific Water Quality Tracker - Log pH, NO2, NO3, water temperature, salinity, and other critical parameters with ease. - Visual charts help you track water trends and detect ecological issues before they become crises. - Features WeatherKit integration, correlating local weather changes with your tank's behavior. ● Smart Maintenance Reminders - Never forget water changes, feeding schedules, filter cleanings, or dosing additives again. - Customize your own routines and receive timely push notifications tailored to your lifestyle. ● Test Strip Camera Scanner & Quick Entry - Say goodbye to tedious typing! Simply snap a photo of your water test strip with the camera. The app uses Vision technology to analyze the color blocks and "pre-fill" your parameters. - Designed for real-world lighting! Includes an intuitive adjustment picker. If lighting causes minor detection variances, you can easily tweak the values on-screen before saving. ● Home Screen Widgets - Keep an eye on your aquarium at a glance — no need to open the app. - Small widget shows your next reminder and the tank it belongs to; Medium widget automatically switches between your latest water readings and today's & tomorrow's reminders. - Fully localized in English & Traditional Chinese, following your in-app language. --- 【About Auto-Renewable Subscriptions】 Unlock unlimited tanks, advanced analytics, and cloud backup by subscribing to our "Hobbyist" or "Pro" plans. - Subscription cycles: Monthly or Yearly auto-renewal. - Payment will be charged to your iTunes Account at confirmation of purchase. - You can turn off auto-renewal at any time by going to your iPhone's Account Settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pk3696666.github.io/aquarium-policy/privacy-en.html

Ratings & Reviews

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Bug Fixes & Improvements - Fixed inconsistent water hardness (GH/KH) unit display across screens - Added a keyboard dismiss button and swipe gesture to calculator screens - Improved dashboard pinning and fixed related notification edge cases - Tapping the widget now opens the app and jumps straight to the right tank Thanks for keeping your tanks happy with us. We'd love to hear your feedback!

Version 1.2.1

The developer, ChenHui Hung, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • ChenHui Hung
Size
  • 16.1 MB
Category
  • Utilities
Compatibility
Requires iOS 26.2 or later.
  • iPhone
    Requires iOS 26.2 or later.
  • Mac
    Requires macOS 26.2 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 26.2 or later.
Languages
English and 2 more
  • English, Japanese, Traditional Chinese
Age Rating
4+
In-App Purchases
Yes
Copyright
  • Copyright © 2026 ChenHui Hung
  • Developer Website
  • Privacy Policy

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