Gym1RM (One Rep Max Calculator) at App Store analyse

App power index: 120 (based on ranks around App Stores today)
Utilities Health & Fitness
Developer: Runloop Ltd
Price: 0 free
Current version: 1.3, last update: 7 years ago
First release : 08 Oct 2009
App size: 1.59 Mb
4.0 ( 6960 ratings )
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Estimation application downloads and cost

> 2.64k
Monthly downloads
~ $ 1.08k
Estimation App Cost


Gym1rm is a utility you can use to predict your theoretical one rep max (1rm).

To use:
1. Go to gym
2. Select exercise you wish to know your 1rm
3. Select a weight you can perform 1-15 reps before reaching positive failure.
4. Perform exercise
5. Enter weight used
6. Enter number of reps performed
7. User Rep Max slider to find your predicted rep max for 1-15 reps

The application defaults to kilograms but you can change this to pounds in the iPhone Settings applications.
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Available in countries
Country Price
Canada free
China free
France free
Germany free
Italy free
Netherlands free
Portugal free
Spain free
Poland free
UK free
India free
Japan free
Russia free
Turkey free
USA free
Korea, Republic Of free
Ukraine free
Available for devices
iPhoneFirstGen, iPodTouchFirstGen, iPodTouchSecondGen, iPhone3G, iPhone3GS, iPadWifi, iPad3G, iPhone4, iPodTouchThirdGen, iPodTouchFourthGen, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus,