Gourami: Aquarium Diary

Track water, fish and care

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

Gourami is a clean, easy journal for your aquariums. Freshwater, brackish or marine, keep everything about each tank in one place. • OVERVIEW – see all your tanks at a glance, with a photo, size and how long they have been running, plus a quick summary of inhabitants, last reading and next maintenance. • PARAMETERS – log temperature, pH, KH, GH, ammonia, nitrite, nitrate, phosphate, conductivity and more, plus salinity, calcium and magnesium for marine tanks. See each value against its ideal range, which you can adjust for every tank, follow the trends over 7 days, 30 days, 6 months or a year, and share a reading as a card. • MAINTENANCE – schedule water changes, water tests, filter and glass cleaning and water treatments, one-off or recurring, with a full history. • FEEDING – plan what to feed and when, and keep track of every meal. • TO DO & CALENDAR – one list with everything due today and in the coming days, filterable by maintenance or feeding, with a calendar view. • LIGHTING – log your photoperiod (on, off, hours per day) and see how it has changed over the last year. • CALCULATORS – net tank volume and substrate, water mixing to reach a KH or GH target, remineralizing RO water, and a CO₂ estimate from pH and KH. • JOURNAL – write notes and add photos to remember how your tank evolves. • INVENTORY – keep your fish, plants, treatment products, food and equipment in one list, with prices in the currency you paid, and get a warning when supplies are running low. • YOUR DATA – sync between iPhone and iPad with iCloud, back up and restore from a file, and choose litres or gallons, °C or °F. In English, Italian and German. • iPHONE & iPAD – designed for both. Try every feature free for 14 days. After that, a one-time purchase unlocks Gourami Pro forever, with no subscription. If you don't unlock it, your data stays readable.

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What's new in 1.0.2 NEW • Dates you don't remember: for a tank's start, equipment installation and purchase, when fish and plants were added, and expenses, you can now choose "Exact date", "Month and year", "Year only" or "I don't remember". You no longer need the exact day to add a tank that is already running. • "Same as the tank's start": one tap to use the tank's start date for equipment. The purchase never ends up after the installation. • Credits & Licenses in Settings. IMPROVED • The "Running for…" line follows what you remember: "Started in March 2021", "Started in 2021", or it disappears with "I don't remember". • Smoother animations on iPhones with a ProMotion display. • The new logo typeface in Settings and on the unlock screen. • Backups keep the date precision, and backups from earlier versions restore as before, with every date exact. FIXED • On screens that don't have data yet, the message in Maintenance, Feeding and Usage History appeared as a narrow, unreadable column, and the one in Lighting was out of place. They are now centered and readable, even with large text. • On iPad in landscape, Recent Activity showed only its title and filter: you can now read the entries, and the list scrolls.

The developer, Biagio Paolino, 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

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

    Seller
    Biagio Paolino
    Size
    14.8 MB
    Category
    Productivity
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    English and 2 more
    • English, German, Italian
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Biagio Paolino