# Calculate your 1RM vs Efort

Calculate your 1RM and Efort both sit at 4.7 stars, but that hides the real split: 100% of Efort's written reviews are positive against 57% of Calculate your 1RM's. Efort also leads on in-app purchases (none vs 1). Calculate your 1RM's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Calculate your 1RM sells 1 one-off in-app purchase. Efort asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Calculate your 1RM against 4.8 for Efort. Both are backed by a comparable volume of ratings — 7 and 16 respectively. Written reviews are what separate them: 57% of Calculate your 1RM's written reviews are positive against 100% of Efort's.

Calculate your 1RM ships an update fortnightly, Efort every 10 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Calculate your 1RM | Efort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (7 ratings)](https://appshunter.io/ios/app/calculate-your-1rm/id1222615417/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/efort/id6448868299/reviews)** |
| Number of ratings | 7 | **16** |
| Positive reviews | 57.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 73 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JosmanTek](https://appshunter.io/developer/1216666984) | [EFORT SYSTEMS S.L.](https://appshunter.io/developer/1686726371) |

## What reviewers say

### Calculate your 1RM

[App page](https://appshunter.io/ios/app/calculate-your-1rm/id1222615417)

This app helps you determine your one-repetition maximum (1RM) for various strength exercises. It uses several well-known formulas to calculate your maximum lift capacity, aiding in tracking training effectiveness and progress.

**Highlights:** 1RM calculation, Multiple formulas (Epley, Lander, etc.), Track strength and power, Monitor training effectiveness, Supports iPhone, iPad, iPod

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Efort

[App page](https://appshunter.io/ios/app/efort/id6448868299)

This application is designed for powerlifting athletes to enhance their performance. It offers custom program creation, performance insights, and optional integration with coaches.

**Highlights:** Custom program creation, Performance insights, Optional coach integration, 100% free

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculate your 1RM free?

Calculate your 1RM is free to download, with in-app purchases available.

### Is Efort free?

Efort is free to download, with no in-app purchases.

### Which has better reviews, Calculate your 1RM or Efort?

Efort is rated higher. Calculate your 1RM averages 4.7 out of 5 from 7 ratings, while Efort averages 4.8 from 16 ratings.

### Do Calculate your 1RM or Efort have ads?

Neither Calculate your 1RM nor Efort shows ads.

### Which is updated more often, Calculate your 1RM or Efort?

Calculate your 1RM ships an update fortnightly, and Efort every 10 days. Most recently, Calculate your 1RM was updated on October 26, 2026 and Efort on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*