About this app
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!
Latest release
What’s New
- Updated RPE Calculation Page for more concise information - Improved warm-up algorithm to support lower weights - Bug fixes and minor improvements
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 4, 2026 · 4:26 AM Free
Screenshots
