# 30 Day Sit Up Challenge! vs METsTracker

The clearest difference is ads: METsTracker at none against 30 Day Sit Up Challenge!'s shown. METsTracker also leads on update cadence (every 3 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

30 Day Sit Up Challenge! ships an update every 3 months, METsTracker every 3 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 30 Day Sit Up Challenge! | METsTracker |
| --- | --- | --- |
| 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 | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 2 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Intersect](https://appshunter.io/developer/641416964) | [Hidetoshi Okui](https://appshunter.io/developer/6802106817) |

## 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


### METsTracker

[App page](https://appshunter.io/ios/app/metstracker/id6802106815)

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

**In-app purchases:** none


## 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 METsTracker free?

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

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

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

### Which is updated more often, 30 Day Sit Up Challenge! or METsTracker?

30 Day Sit Up Challenge! ships an update every 3 months, and METsTracker every 3 weeks. Most recently, 30 Day Sit Up Challenge! was updated on October 24, 2026 and METsTracker on October 21, 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.*