# 30 Day Ab Workout Challenge vs One Dojo

The clearest difference is in-app purchases: One Dojo at none against 30 Day Ab Workout Challenge's 10. One Dojo also leads on update cadence (every 8 days vs every 2 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. 30 Day Ab Workout Challenge sells 10 in-app purchases, starting at $0.99 per 7 days. One Dojo asks for nothing beyond the download.

30 Day Ab Workout Challenge ships an update every 2 months, One Dojo every 8 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 30 Day Ab Workout Challenge | One Dojo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (668 ratings)](https://appshunter.io/ios/app/30-day-ab-workout-challenge/id1368434056/reviews)** | — |
| Number of ratings | **668** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Subscription | — |
| Size | 62 MB | 28 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rumble](https://appshunter.io/developer/1368434055) | [TeamUp Sports](https://appshunter.io/developer/1449504626) |

## What reviewers say

### 30 Day Ab Workout Challenge

[App page](https://appshunter.io/ios/app/30-day-ab-workout-challenge/id1368434056)

Achieve flat abs and a stronger core with a structured 30-day guided program. This app offers effective workouts, clear video demonstrations, and progress tracking to help you stay motivated and see results, regardless of your fitness level.

**Highlights:** Ultra-effective ab workouts, Easy-to-follow video demonstrations, Workout calendar and reminders, Progress tracking, Suitable for all fitness levels

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ab challenge (Weekly) | $0.99 | per 7 days |
| Weekly Subscription | $0.99 | per 7 days |
| Abs Monthly New | $1.99 | per month |
| Weekly Subscription | $1.99 | per 7 days |
| 30 Day Ab Challenge (Weekly) | $1.99 | per 7 days |
| Monthly Subscription | $5.99 | per month |
| 30 Day Ab Challenge (Monthly) | $8.99 | per month |
| Yearly Subscription | $29.99 | per year |
| Ab challenge & workout | $37.99 | per 6 months |
| Ab challenge & workout | $39.99 | one-time |

**What reviewers like**

- 👍 Effective for building abs
- 🤩 Motivating and pushes users to exercise
- 🎥 Helpful video examples
- 💪 Noticeable results in a short time
- 🤗 Boosts confidence and self-image

**What reviewers complain about**

- 💰 Aggressive upselling to premium features
- 🤔 Questionable age rating for young users
- 🐛 Frequent app crashes and glitches
- 🙄 Beginner workouts are too easy

**Reported bugs**

- Login screen freezes
- Incompatible with older devices

**Requested features**

- Add music options during workouts
- Improve app stability and performance
- Adjust age rating to be more appropriate


### One Dojo

[App page](https://appshunter.io/ios/app/one-dojo/id6462439643)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 30 Day Ab Workout Challenge free?

30 Day Ab Workout Challenge is free to download, with in-app purchases available.

### Is One Dojo free?

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

### Do 30 Day Ab Workout Challenge or One Dojo have ads?

Neither 30 Day Ab Workout Challenge nor One Dojo shows ads.

### Which is updated more often, 30 Day Ab Workout Challenge or One Dojo?

30 Day Ab Workout Challenge ships an update every 2 months, and One Dojo every 8 days. Most recently, 30 Day Ab Workout Challenge was updated on November 6, 2026 and One Dojo on November 3, 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.*