# 30 Day Sit Up Challenge! vs RepKey

The clearest difference is in-app purchases: 30 Day Sit Up Challenge! at none against RepKey's 3. RepKey's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. RepKey sells 3 in-app purchases, starting at $4.99 per 7 days. 30 Day Sit Up Challenge! asks for nothing beyond the download.

## The numbers

| Metric | 30 Day Sit Up Challenge! | RepKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (35 ratings)](https://appshunter.io/ios/app/30-day-sit-up-challenge/id1365396923/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 72.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 4 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Intersect](https://appshunter.io/developer/641416964) | [Koya Nambo](https://appshunter.io/developer/1633778504) |

## What reviewers say

### 30 Day Sit Up Challenge!

[App page](https://appshunter.io/ios/app/30-day-sit-up-challenge/id1365396923)

This app helps you track your progress through a 30-day sit-up challenge. It counts your sit-ups daily, manages your achievements, and sends notifications to keep you motivated. It also integrates with Apple Health to record your active energy and workouts.

**Highlights:** Daily sit-up counting, Achievement day management, Push notifications, Apple Health integration, Active energy calculation, Workout recording

**In-app purchases:** none


### RepKey

[App page](https://appshunter.io/ios/app/repkey/id6760356069)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $14.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is 30 Day Sit Up Challenge! free?

30 Day Sit Up Challenge! is free to download, with no in-app purchases.

### Is RepKey free?

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

### Do 30 Day Sit Up Challenge! or RepKey have ads?

30 Day Sit Up Challenge! shows ads; RepKey does not.

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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.*