What's New
This app has been updated by Apple to use the latest Apple signing certificate.
Updated to latest iOS version
App Description
The un-ionized ammonia calculator is an invaluable resource for on the go aquaculture producers and managers as well as home aquarium hobbyists. Ammonia is the major end product in the breakdown of proteins in fish. Total ammonia nitrogen (TAN) is composed of toxic (un-ionized) ammonia (NH3) and nontoxic (ionized) ammonia (NH+ 4). Over time the buildup of ammonia within the fish system, combined changes in pH and temperature causes fluctuations in the concentration of toxic un-ionized ammonia. AmmoniaCalc allows the user to input simple, easily measured water chemistry measurements such as pH and temperature to instantly calculate the un-ionized ammonia concentration.
iPhone Screenshots
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App Changes
- October 16, 2013 Initial release
- October 17, 2013 Price increase: $0.99 -> $1.99
- December 10, 2013 Price decrease: $1.99 -> $0.99
- January 08, 2014 Price increase: $0.99 -> $1.99
- April 03, 2014 Price decrease: $1.99 -> $0.99
- May 20, 2014 Price decrease: $0.99 -> FREE!
- July 15, 2014 Price increase: FREE! -> $0.99
- August 08, 2015 Price decrease: $0.99 -> FREE!
- June 13, 2019 New version 1.1
- June 13, 2019 Price increase: FREE! -> $0.99
- June 13, 2019 Price increase: FREE! -> $0.99
- June 14, 2019 Price increase: FREE! -> $0.99
- June 14, 2019 Price increase: FREE! -> $0.99
- June 15, 2019 Price increase: FREE! -> $0.99
- June 15, 2019 Price increase: FREE! -> $0.99
- June 16, 2019 Price increase: FREE! -> $0.99
- October 22, 2020 Price increase: $0.99 -> $2.99
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