AquaCalculator is made and published by Thallos. AppBrain is an independent app data site and isn't affiliated with Thallos. The app name, icon, screenshots and description belong to Thallos and are shown as published on the App Store.
AppBrain's verdict
Established- Rating on App Store
- 3.67
- 12 ratings
- Last updated
- October 10, 2026
It doesn't have enough ratings yet to judge what users think.
Rankings
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Competitors
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Releases
Updates seen on the App Store- Version
- 2026.6.11
- Launched
- February 2019
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 48.9 MB
- Content rating
- Everyone
Technologies used by AquaCalculator
About the app and developer
About AquaCalculator
AquaCalculator is a productivity app developed by Thallos.
User Ratings
AquaCalculator is rated 3.67 out of 5 stars. The rating is based on 12 ratings.
App Information
AquaCalculator is freely available from the App Store. The app size is 48.90 MB. The latest version available is 2026.6.11. The last update was on October 10, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since February 2019.
Developer information for Thallos
Address:
Store listing
By Thallos, from the App Store
Screenshots by Thallos, from the the App Store listing
Description by Thallos Written by the developer, not by AppBrain. Click to read.
The reference software for dedicated marine aquarists
The AquaCalculator is not free. In order to be able to use the AquaCalculator permanently, you must complete a paid subscription after two weeks. In the first two weeks, the AquaCalculator can be tested for free and the subscription can be stopped at any time before it is chargeable.
The app for documentation and management of your aquarium. The main focus is on saltwater aquariums but also their freshwater pools can of course be documented with the AquaCalculator.
With the AquaCalculator you have the suitable manager at your fingertips to keep an eye on all important parameters regarding the care of your aquarium.
A big request: unfortunately we can not respond to reviews. If you have problems with the app, please contact us via email shortly (Support). So far we could clarify every question :-)
The reference software for every dedicated marine aquarist:
- Manage several basins in parallel
- Documentation of the water values in graph and table form per pool. You can document your water readings, take notes or deposit pictures. The pictures can also be commented on.
- Animal Administration. You can also assign notes and pictures to your animals in the basin and thus get a quicker overview of the development of their stock.
- Dates: Management of recurrent memories help to keep track of the care of aquariums
- Realistic estimation of the required salt quantity of commercially available sea salt mixtures.
How much salt is actually needed to "adjust the salt content" or for the next "water change"? AquaCalculator calculates this using self-determined measurements of almost all commercially available sea salt mixtures.
- Addition of nutrients (nitrate and phosphate)
- Calculator to adjust calcium / alkalinity / magnesium: Expensive special agents are passé. AquaCalculator calculates the exact dosing quantities and stock solutions required for the adjustment of calcium, alkalinity (KH) and Mg concentration of low-cost salts.
Supports recipes from Aquafair, Aquaforest, Coral-Care, Fauna Marin, MT Aquaristics, Nyos, H.W. Balling, Price Aquaristics, A.Glaser, Red Sea, Sangokai, Tropic Marin, Fritz ProAquatics, Two Little Fishies, Kent Marine, Seachem, Brightwell, Continuum Aquatics, ESV and Self-Defined.
- Extensive setting options for the measuring instruments used, as well as the chem. Recipes.
- Mini-FAQ: answers the most important questions about adjusting the water values and thus the successful care of reef aquariums. Including ten thousand times downloaded seawater FAQs by Martin Kuhn (Water Parameter FAQ, Anemone FAQ, Plague Master FAQs 1 and 2)
NOTE: We have provided iBooks from Apple for viewing the Seawater FAQs. The ad must have iBooks or another PDF viewing app installed on your device.
To use the AquaCalculator you must have a valid subscription.
This will enable you to take full advantage of the Aquacalculator, benefit from regular updates and enhancements, secure data storage and synchronization of your data with other devices.
Without a valid subscription, you can only read but not modify your data.
The term is one year.
Payment will be made through your iTunes account.
The subscription will automatically renew if it is not canceled 24 hours before the end of the current period.
Within 24 hours before the end of the current period, the amount for the renewal will be charged.
Termination of automatic renewal is possible at any time.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms of Use and Privacy: https://acalc.de/pages/impressum
The AquaCalculator is not free. In order to be able to use the AquaCalculator permanently, you must complete a paid subscription after two weeks. In the first two weeks, the AquaCalculator can be tested for free and the subscription can be stopped at any time before it is chargeable.
The app for documentation and management of your aquarium. The main focus is on saltwater aquariums but also their freshwater pools can of course be documented with the AquaCalculator.
With the AquaCalculator you have the suitable manager at your fingertips to keep an eye on all important parameters regarding the care of your aquarium.
A big request: unfortunately we can not respond to reviews. If you have problems with the app, please contact us via email shortly (Support). So far we could clarify every question :-)
The reference software for every dedicated marine aquarist:
- Manage several basins in parallel
- Documentation of the water values in graph and table form per pool. You can document your water readings, take notes or deposit pictures. The pictures can also be commented on.
- Animal Administration. You can also assign notes and pictures to your animals in the basin and thus get a quicker overview of the development of their stock.
- Dates: Management of recurrent memories help to keep track of the care of aquariums
- Realistic estimation of the required salt quantity of commercially available sea salt mixtures.
How much salt is actually needed to "adjust the salt content" or for the next "water change"? AquaCalculator calculates this using self-determined measurements of almost all commercially available sea salt mixtures.
- Addition of nutrients (nitrate and phosphate)
- Calculator to adjust calcium / alkalinity / magnesium: Expensive special agents are passé. AquaCalculator calculates the exact dosing quantities and stock solutions required for the adjustment of calcium, alkalinity (KH) and Mg concentration of low-cost salts.
Supports recipes from Aquafair, Aquaforest, Coral-Care, Fauna Marin, MT Aquaristics, Nyos, H.W. Balling, Price Aquaristics, A.Glaser, Red Sea, Sangokai, Tropic Marin, Fritz ProAquatics, Two Little Fishies, Kent Marine, Seachem, Brightwell, Continuum Aquatics, ESV and Self-Defined.
- Extensive setting options for the measuring instruments used, as well as the chem. Recipes.
- Mini-FAQ: answers the most important questions about adjusting the water values and thus the successful care of reef aquariums. Including ten thousand times downloaded seawater FAQs by Martin Kuhn (Water Parameter FAQ, Anemone FAQ, Plague Master FAQs 1 and 2)
NOTE: We have provided iBooks from Apple for viewing the Seawater FAQs. The ad must have iBooks or another PDF viewing app installed on your device.
To use the AquaCalculator you must have a valid subscription.
This will enable you to take full advantage of the Aquacalculator, benefit from regular updates and enhancements, secure data storage and synchronization of your data with other devices.
Without a valid subscription, you can only read but not modify your data.
The term is one year.
Payment will be made through your iTunes account.
The subscription will automatically renew if it is not canceled 24 hours before the end of the current period.
Within 24 hours before the end of the current period, the amount for the renewal will be charged.
Termination of automatic renewal is possible at any time.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms of Use and Privacy: https://acalc.de/pages/impressum