Aquaryn: Aquarium Water Log

Compare before & after care

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

Log maintenance or a water change. Aquaryn will place the nearest readings before and after it side by side. What changed after maintenance? Add your tank, define a parameter and record measurements. Log a water change or maintenance event, then compare the nearest readings on either side. The dates show how far apart the evidence is. Targets are your own reference values, not advice from Aquaryn. A parameter keeps the same unit throughout its history. Create a new parameter for a different unit. Log maintenance or a water change. Aquaryn will place the nearest readings before and after it side by side. A difference is not proof that maintenance caused a change. Check the timestamps; no dosing or animal-care advice is provided. Room for every aquarium. Record unlimited tanks and water measurements. Keep comparing your readings around every care event. Free includes 1 tank and 30 measurements. Existing history, maintenance notes and CSV export stay accessible. One-time purchase. No subscription. Save a snapshot to your private iCloud. Restoring replaces this device’s records after confirmation. This is not automatic sync. Your own backups remain available without Pro. Privacy policy: https://twinbroos.com/aquaryn-privacy Contact support: https://twinbroos.com/aquaryn-support Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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20 languages, with localized screens and sample records.

Version 1.1

The developer, OEZER GUEL, 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 Not Collected

    The developer does not collect any data from this app.

    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
    • OEZER GUEL
    Size
    • 3.1 MB
    Category
    • Lifestyle
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 19 more
    • English, Arabic, Czech, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Turkish, Ukrainian
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Twinbroos
  • Developer Website
  • Privacy Policy

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