# Arm Workout vs 100 Sit

The clearest difference is rating: 100 Sit at 5.0 against Arm Workout's 3.5. 100 Sit also leads on in-app purchases (none vs 3) and ads (none vs shown). Arm Workout's advantage is ratings volume (13 vs 2). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Arm Workout sells 3 in-app purchases, starting at $3.99 per 7 days. 100 Sit asks for nothing beyond the download.

100 Sit holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Arm Workout has 13 ratings behind it against 2, so its average is the more settled of the two.

Arm Workout ships an update every 7 months, 100 Sit every 6 weeks. The most recent releases landed on September 8, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Arm Workout | 100 Sit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (13 ratings)](https://appshunter.io/ios/app/arm-workout-biceps-triceps/id1543341679/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/100-sit-ups-challenge/id1553068549/reviews)** |
| Number of ratings | **13** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 125 MB | 37 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ohealth apps studio](https://appshunter.io/developer/1536575454) | [Eray Aksoy](https://appshunter.io/developer/1549464012) |

## What reviewers say

### Arm Workout

[App page](https://appshunter.io/ios/app/arm-workout-biceps-triceps/id1543341679)

This app offers a structured plan to build biceps and triceps strength at home, requiring no equipment. It provides daily routines and month-long plans for various fitness levels to help you achieve stronger arms and reduce arm fat.

**Highlights:** Biceps and triceps focused workouts, No equipment required, Daily and monthly workout plans, Suitable for all fitness levels, Arm fat loss exercises, Personal trainer at home

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features. | $3.99 | per 7 days |
| Premium Features | $4.99 | per month |
| Premium Features | $29.99 | per year |


### 100 Sit

[App page](https://appshunter.io/ios/app/100-sit-ups-challenge/id1553068549)

Achieve 100 consecutive sit-ups in just six weeks with this home workout app. It provides effective routines designed by a personal trainer, suitable for beginners and all fitness levels. Learn proper technique and track your progress to strengthen your core muscles anywhere, anytime.

**Highlights:** 6-week sit-up training program, Personal trainer-designed routines, Suitable for beginners, Learn proper sit-up technique, Workout at home or anywhere, Targets core and abdominal muscles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Arm Workout free?

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

### Is 100 Sit free?

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

### Which has better reviews, Arm Workout or 100 Sit?

100 Sit is rated higher. Arm Workout averages 3.5 out of 5 from 13 ratings, while 100 Sit averages 5.0 from 2 ratings.

### Do Arm Workout or 100 Sit have ads?

Arm Workout shows ads; 100 Sit does not.

### Which is updated more often, Arm Workout or 100 Sit?

Arm Workout ships an update every 7 months, and 100 Sit every 6 weeks. Most recently, Arm Workout was updated on September 8, 2026 and 100 Sit on June 5, 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.*