Aquarium Journal

Water tests & tank history

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Keep water readings, maintenance and notes together in a local aquarium journal. Keep a clear record of your aquarium, from today’s water tests to the work you did last month. Record temperature, pH, nitrite, nitrate and phosphate together. Each saved value keeps its measurement date, so you can see how recent it is. Add maintenance events, inhabitants, notes and optional photos to your tank’s history. Explore your own readings over 7, 30 or 90 days, with event markers and a factual table. Export four CSV tables for use outside the app. Save and restore a versioned JSON backup of journal records and saved photos; review accepted, duplicate and conflicting records before importing. Works locally without an account. CSV is export-only. JSON backup does not include app settings or unfinished drafts. Aquarium Journal records observations; it does not provide care, dosing or veterinary advice.

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The developer, Danila Pryadko, 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

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    Information

    Seller
    Danila Pryadko
    Size
    5.4 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 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, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
    Age Rating
    4+
    Copyright
    © 2026 Danila Pryadko
  • Developer Website
  • Privacy Policy

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