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AquaCalculator

aquarium app for aquarists
US flag US
1 of 1 storefronts
Content in en-US
12 Ratings
3.7
★★★★
Age Rating
4+
Years
Developer
Language
EN
+8 More
Size
50.9
MB

Information

Apple ID1449511522
Bundle IDcom.thallos.de.aCalcAbo
SellerSeller
Min iOS18.6
Device familiesmac, iphone, realityDevice, ipad
Released2019-02-20
Copyright© 2026 Michel Mohrmann
WebsiteLink ↗
Privacy policyLink ↗

Preview 4 platforms

iPhone 9 images

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iPad 9 images

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Mac 9 images

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Apple Vision Pro 4 images

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What’s New Version 2026.6.8

Water parameter configurations are now synchronised via aCloud.

Description

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

In-App Purchases US pricing

License Subscription
AquaCalculator yearly · Yearly 14-day free trial$19.99
AquaCalculator monthly · Monthly 3-day free trial$3.99
One-Time Purchases
A large coffee$3.99
Ice Tead and a Sandwich$9.99
Something to learn$39.99

Capabilities

In-App Purchases

Accessibility

ipadiphonemacrealityDevicetvoswatch

Version history 25 versions

Build 886996619v2026.6.82026-06-16 23:40:59
Water parameter configurations are now synchronised via aCloud.
Build 884474401v2026.6.72026-04-14 00:49:32
Bugfixes
Build 883723941v2026.6.62026-04-07 22:07:18
Bugfixes
Build 881723186v2026.6.32026-01-22 04:29:48
Selection of animals from aPedia revised. Fix: Subscription handling in special cases.
Build 881382384v2026.6.12026-01-11 23:37:51
Some Bugfixes.
Build 880030734v2025.6.52025-11-24 19:14:03
Bugfixes
Build 879064084v2025.6.32025-10-21 08:11:57
Improvements and Bugfixes
Build 873481321v2025.6.22025-03-24 15:44:02
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Build 872045653v2025.6.12025-01-27 21:22:27
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Build 871396943v2024.6.222024-12-26 19:12:26
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Build 871000305v2024.6.212024-12-09 22:35:49
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Build 870838130v2024.6.202024-12-02 21:21:21
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Build 870501883v2024.6.192024-11-18 16:21:16
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In addition, as always, a few bugs have been fixed.
Build 869714437v2024.6.182024-11-03 14:05:43
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In addition, as always, a few bugs have been fixed.
Build 869620560v2024.6.162024-10-14 17:57:47
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In addition, as always, a few bugs have been fixed.
Build 869023822v2024.6.152024-09-15 13:46:22
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In addition, as always, a few bugs have been fixed.
Build 868846575v2024.6.142024-09-08 15:32:13
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In addition, as always, a few bugs have been fixed.
Build 868356151v2024.6.132024-08-21 05:41:51
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Build 867544630v2024.6.122024-07-17 14:47:40
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Build 867360438v2024.6.112024-07-15 20:54:51
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Build 865258171v2024.6.92024-04-17 08:49:55
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Build 864567255v2024.6.82024-04-16 14:58:41
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Build 864394143v2024.6.72024-03-13 08:02:02
We are constantly working on minor and major improvements. The synchronization with the aCloud has been completely revised and modernized. This version fixes a bug that could lead to the display of 0 values in the measurements that should not be visible at all when importing from the aCloud.
Build 863923589v2024.6.62024-03-04 16:50:43
We are constantly working on minor and major improvements. The synchronization with the aCloud has been completely revised and modernized. In addition, as always, a few bugs have been fixed.
Build 863671677v2024.6.52024-02-12 17:35:36
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
AquaCalculator yearly

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Availability 1 of 1 storefronts

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US en-USFree123.72026.6.8

Change log 29 changes · US

releaseNotes updated
Water parameter configurations are now synchronised via aCloud.
description updated
The reference software for dedicated marine aquarists The AquaCalculator is not free. In order to be able to use the AquaCalculator permanently, you must compl
subtitle updated
aquarium app for aquarists
name updated
AquaCalculator
Version 2026.6.8 released
Water parameter configurations are now synchronised via aCloud.
Version 2026.6.7 released
Bugfixes
Version 2026.6.6 released
Bugfixes
Version 2026.6.3 released
Selection of animals from aPedia revised. Fix: Subscription handling in special cases.
Version 2026.6.1 released
Some Bugfixes.
Version 2025.6.5 released
Bugfixes
Version 2025.6.3 released
Improvements and Bugfixes
Version 2025.6.2 released
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Version 2025.6.1 released
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Version 2024.6.22 released
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Version 2024.6.21 released
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Version 2024.6.20 released
We are constantly working on minor and major improvements. In this version, the handling of the license check at the start of the app has been optimized. In addition, as always, a few bugs have been fixed.
Version 2024.6.19 released
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In
Version 2024.6.18 released
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In
Version 2024.6.16 released
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In
Version 2024.6.15 released
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In
Version 2024.6.14 released
We are constantly working on minor and major improvements. As of this version, it is possible for the first time to work with reference solutions in order to check your own water tests and automatically take any deviations into account. In
Version 2024.6.13 released
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Version 2024.6.12 released
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Version 2024.6.11 released
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Version 2024.6.9 released
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Version 2024.6.8 released
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
Version 2024.6.7 released
We are constantly working on minor and major improvements. The synchronization with the aCloud has been completely revised and modernized. This version fixes a bug that could lead to the display of 0 values in the measurements that should n
Version 2024.6.6 released
We are constantly working on minor and major improvements. The synchronization with the aCloud has been completely revised and modernized. In addition, as always, a few bugs have been fixed.
Version 2024.6.5 released
We are constantly working on minor and major improvements. The input of numerical values has been standardized in the app. In addition, as always, a few bugs have been fixed.
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