Limnia: Aquarium Care Log
Water, fish and maintenance
$2.99 · Designed for iPad. Not verified for macOS.
No subscriptions, no monthly fees. Buy once, done. Your data never leaves your phone: Limnia has no server and asks for no account.
Limnia keeps track of your aquarium so you can enjoy it.
Record the water, the livestock and the maintenance, and let the app warn you before a small oversight turns into a problem.
ONE PURCHASE, NO SURPRISES
• No subscriptions, no monthly fees.
• No ads and no in-app purchases.
• Buy it once and it is yours.
YOUR DATA IS YOURS
• No user account. No sign-up. No password.
• Limnia makes no internet connection: there is no server to send anything to.
• Zero analytics, zero advertising, zero tracking.
• Photographs are saved without their GPS location or metadata.
• Works on a plane, in the basement, and with no signal at all.
THE WATER, UNDER CONTROL
• Record pH, temperature, ammonia, nitrite, nitrate, hardness, salinity and more.
• Set your own normal and critical ranges, per tank.
• Charts over 7 days, 30 days, 3 months or a year.
• Alerts when a value leaves the range you set.
READ YOUR TEST STRIPS WITH THE CAMERA
• Photograph the strip and Limnia suggests the values.
• Save your brand's colour chart once and reuse it.
• It is a rough estimate, and the app says so plainly: it never replaces reading the strip with your own eyes.
80 SPECIES WITH REAL DATA
• Fish, plants and invertebrates for fresh, salt and brackish water.
• Temperature, pH, adult size and honest minimum litres — not brochure numbers.
• Compatibility notes written to tell you what can go wrong.
• Limnia compares the species with your tank and tells you if it fits, without inventing what it does not know.
NEVER MISS A WATER CHANGE AGAIN
• Maintenance routines at whatever frequency you choose.
• Reminders on your device, with no notifications from any server.
• A history of what was done, snoozed and skipped.
ALSO
• Notes with photographs: your aquarium logbook.
• Equipment records, with installation dates and servicing.
• Full backups that you store wherever you like.
• iPhone and iPad, with a sidebar on the big screen.
• Six languages: Spanish, English, French, German, Italian and Portuguese.
• VoiceOver, Large Text and dark mode.
WHAT LIMNIA DOES NOT DO
It does not diagnose disease or prescribe treatment. It compares your data with published ranges and warns you; the decision, and a vet's judgement when one is needed, remain yours.
One more thing: never release an animal or a plant into the wild. Limnia reminds you on every species entry.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, ISEnet, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ingenieria del Software ISEnet S.L.
- Size
- 5.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Italian, Portuguese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Ingeniería del Software ISEnet S.L.
