# RPE Lab — 1RM & RPE Gym Calculator

> 1RM & RPE Gym Calculator (iPhone/iPad app by Carlo Feletti.)

- Source: https://appshunter.io/ios/app/rpe-lab/id6757129710 (this page in markdown: same URL + `.md`)
- Developer: [Carlo Feletti](https://appshunter.io/developer/1653237990)
- Category: Health & Fitness, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 9 MB
- Languages: American English
- Released: 2026-01-05
- Data updated: 2026-02-08
- User reviews in markdown: https://appshunter.io/ios/app/rpe-lab/id6757129710/reviews.md

## What is RPE Lab?

RPE Lab is a simple, fast 1RM and RPE calculator built for strength training.

Use it to:
• Estimate your 1RM from weight and reps
• Choose your preferred formula
• Plan training loads using RPE-based targets
• Save time between sets with quick, on-the-fly calculations
• Register your own personal record on the three main lifts
• Watch charts of your personal records

Designed to be lightweight and distraction-free:
• Works offline
• No accounts, no ads
• No analytics and no tracking

Disclaimer:
RPE Lab is for informational purposes only. Always train within your limits and use proper technique.


## Version history (last 4 releases)

### 2.0.0 — 2026-02-07

In this version the graphics have been redesigned for a fresher and more modern look

### 1.1.2 — 2026-01-19

Some bugs have been fixed in this version

### 1.1.1 — 2026-01-10

In this version we have improved the user experience: now RPE charts update immediately when 1RM changes

### 1.1.0 — 2026-01-05

No release notes.

## Related topics

[rpe lab](https://appshunter.io/ios/topics/rpe-lab)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-02-08.*