# 1RM Max Calculator vs FiTin

The clearest difference is update cadence: FiTin at every 4 days against 1RM Max Calculator's every 6 weeks. On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. 1RM Max Calculator sells 3 one-off in-app purchases and FiTin sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

1RM Max Calculator ships an update every 6 weeks, FiTin every 4 days. The most recent releases landed on October 21, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 1RM Max Calculator | FiTin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (22 ratings)](https://appshunter.io/ios/app/1rm-max-calculator/id1110502852/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | **70.4% of reviews** | 69.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 10 MB | 135 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kazumasa Shimomura](https://appshunter.io/developer/1110502851) | [FiTin Inc.](https://appshunter.io/developer/1821685307) |

## What reviewers say

### 1RM Max Calculator

[App page](https://appshunter.io/ios/app/1rm-max-calculator/id1110502852)

Instantly calculate your one-rep max (1RM) for bench press, squat, and deadlift using 7 scientific formulas. Track your progress with intuitive charts and calendar records. Ideal for athletes and lifters aiming for more scientific and effective training.

**Highlights:** 7 scientific 1RM calculation formulas, Supports bench press, squat, and deadlift, Progress tracking and data visualization, Calendar for daily record management, One-tap data saving, Offline functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator for deadlift | $2.99 | one-time |
| Calculator for squat | $2.99 | one-time |
| Ad Blocker | $2.99 | one-time |


### FiTin

[App page](https://appshunter.io/ios/app/fitin-workout-tracker/id6747509583)

Effortlessly log your weightlifting sessions and track your strength gains. Connect with friends to share workouts, stay motivated, and cheer each other on. Features include quick logging, exercise history, and progress visualization.

**Highlights:** Fast workout logging, Track sets, reps, and weight, 200+ built-in exercises, Progress visualization, Social sharing and motivation, Rest timer

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン（月額） | $1.99 | per month |
| プレミアムプラン（年額） | $22.99 | per year |
| プレミアムプラン（生涯） | $59.99 | one-time |


## Frequently asked questions

### Is 1RM Max Calculator free?

1RM Max Calculator is free to download, with in-app purchases available.

### Is FiTin free?

FiTin is free to download, with in-app purchases available.

### Do 1RM Max Calculator or FiTin have ads?

Neither 1RM Max Calculator nor FiTin shows ads.

### Which is updated more often, 1RM Max Calculator or FiTin?

1RM Max Calculator ships an update every 6 weeks, and FiTin every 4 days. Most recently, 1RM Max Calculator was updated on October 21, 2026 and FiTin on October 30, 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.*