# Flat Stomach Workouts vs Mochiko Strength Diary

The clearest difference is in-app purchases: Mochiko Strength Diary at none against Flat Stomach Workouts's 11. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Flat Stomach Workouts sells 11 in-app purchases, starting at $0.99 per month. Mochiko Strength Diary asks for nothing beyond the download.

Flat Stomach Workouts ships an update every 5 weeks, Mochiko Strength Diary every 3 weeks. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Flat Stomach Workouts | Mochiko Strength Diary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 141 MB | 47 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Loyal Health & Fitness, Inc.](https://appshunter.io/developer/1088263310) | [YOSUKE NISHIKAWA](https://appshunter.io/developer/1888169341) |

## What reviewers say

### Flat Stomach Workouts

[App page](https://appshunter.io/ios/app/flat-stomach-workouts/id889654541)

Achieve a flatter stomach with targeted abdominal exercises that require no equipment. This app offers customized weekly routines and HD instructional videos to guide you. Enhance your experience with motivating audio guidance and DJ mixes.

**Highlights:** No equipment required, Customized weekly workouts, HD instructional videos, Audio guidance from trainer, Offline workout access, DJ-mixed motivating workouts

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Fitivity Premium | $1.99 | per month |
| ad Free One Month | $1.99 | per month |
| Yearly Subscription | $5.99 | per year |
| Yearly Subscription | $9.49 | per year |
| Entire Program - Flat Stomach | $4.99 | one-time |
| Entire Program - Six Pack | $4.99 | one-time |
| Entire Program - 8 Minute Abs | $4.99 | one-time |
| Entire Program - Lower Abs | $4.99 | one-time |
| Purchase levels of all programs | $14.99 | one-time |
| Lifetime Premium Subscription | $299.99 | one-time |


### Mochiko Strength Diary

[App page](https://appshunter.io/ios/app/mochiko-strength-diary/id6761185336)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flat Stomach Workouts free?

Flat Stomach Workouts is free to download, with in-app purchases available.

### Is Mochiko Strength Diary free?

Mochiko Strength Diary is free to download, with no in-app purchases.

### Do Flat Stomach Workouts or Mochiko Strength Diary have ads?

Both Flat Stomach Workouts and Mochiko Strength Diary show ads.

### Which is updated more often, Flat Stomach Workouts or Mochiko Strength Diary?

Flat Stomach Workouts ships an update every 5 weeks, and Mochiko Strength Diary every 3 weeks. Most recently, Flat Stomach Workouts was updated on October 14, 2026 and Mochiko Strength Diary on October 8, 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.*