# Lets Burn vs One Rep Max

The clearest difference is rating: One Rep Max at 5.0 against Lets Burn's 4.2. One Rep Max also leads on review sentiment (33% vs 0%) and update cadence (every 10 days vs every 2 months). Lets Burn's advantage is in-app purchases (none vs 1) and ratings volume (13 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. One Rep Max sells 1 one-off in-app purchase. Lets Burn asks for nothing beyond the download.

One Rep Max holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Lets Burn has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Lets Burn's written reviews are positive against 33% of One Rep Max's.

Lets Burn ships an update every 2 months, One Rep Max every 10 days. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Lets Burn | One Rep Max |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (13 ratings)](https://appshunter.io/ios/app/lets-burn/id1337646892/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/one-rep-max-1rm-calculator/id1367332610/reviews)** |
| Number of ratings | **13** | 1 |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 88 MB | 13 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [P5M Co.](https://appshunter.io/developer/1337646891) | [App Ktchn Ltd](https://appshunter.io/developer/870718126) |

## What reviewers say

### Lets Burn

[App page](https://appshunter.io/ios/app/lets-burn/id1337646892)

Discover and book fitness classes at various studios with a single membership. Explore diverse activities like yoga, boxing, and CrossFit, and join a supportive community led by experienced trainers to kickstart a healthy lifestyle.

**Highlights:** Access to best fitness studios, One membership for all classes, Explore and book diverse fitness activities, Filter by location, activity, and time, Organize workout schedule, Join a vibrant fitness community

**Features:** Vision Pro support

**In-app purchases:** none


### One Rep Max

[App page](https://appshunter.io/ios/app/one-rep-max-1rm-calculator/id1367332610)

Easily calculate your One Rep Max (1RM) for various strength exercises. Track your progress over time with saved calculations, view personalized percentages, and visualize your strength gains through charts. Supports multiple exercise types and custom units.

**Highlights:** Calculate One Rep Max, Save and track progress, View 1RM percentages, Log multiple exercise types, Create custom exercises, View strength gain charts, Imperial or Metric units

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1RM Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Lets Burn free?

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

### Is One Rep Max free?

One Rep Max is free to download, with in-app purchases available.

### Which has better reviews, Lets Burn or One Rep Max?

One Rep Max is rated higher. Lets Burn averages 4.2 out of 5 from 13 ratings, while One Rep Max averages 5.0 from 1 ratings.

### Do Lets Burn or One Rep Max have ads?

Neither Lets Burn nor One Rep Max shows ads.

### Which is updated more often, Lets Burn or One Rep Max?

Lets Burn ships an update every 2 months, and One Rep Max every 10 days. Most recently, Lets Burn was updated on October 16, 2026 and One Rep Max on October 9, 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.*