Iron Plus vs StressCalc - RPE Calculator Usage & Stats
All the gym calculations you need in one place.
Iron Plus is a collection of tools to help you with your lifting.
- Use the RPE Calculator to quickly produce a chart specific to you.
- Use the Converter to convert pounds to kilos, and vice versa, and show you which plates to load on the bar.
- Use the Warm Up Calculator to help you find the right jumps to your top set.
Please feel free to reach out to me at napesdotnet@gmail.com or @napier.lifts on Instagram with feedback/feature suggestions!
- Apple App Store
- Free
- Health & Fitness
Store Rank
- -
A beautiful, simple, user-centric app to calculate Rating of Perceived Exertion (RPE) for lifters.
Designed to be fast, no-frills, and to get the job done. Completely free, with no ads.
Includes:
- Simple design
- Visualizer for weight to put on the bar
- Support for a variety of lbs plates (45, 35, 25, etc)
- Upcoming features will be based on user feedback
- Apple App Store
- Free
- Health & Fitness
Store Rank
- -
Iron Plus VS. 
StressCalc - RPE CalculatorJanuary 17, 2025