# Flat Belly Workout Plan vs Zeus Spartan Workout

The clearest difference is in-app purchases: Zeus Spartan Workout at none against Flat Belly Workout Plan's 8. Zeus Spartan Workout also leads on update cadence (every 2 weeks vs every 3 weeks). Flat Belly Workout Plan's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price and ads there is nothing between them.

Both are free to download. Flat Belly Workout Plan sells 8 one-off in-app purchases. Zeus Spartan Workout asks for nothing beyond the download.

Flat Belly Workout Plan ships an update every 3 weeks, Zeus Spartan Workout every 2 weeks. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Flat Belly Workout Plan | Zeus Spartan Workout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flat-belly-workout-plan/id1574475049/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 22 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Samantha Roobol](https://appshunter.io/developer/1415281405) | [Faelan Kranz](https://appshunter.io/developer/1896329143) |

## What reviewers say

### Flat Belly Workout Plan

[App page](https://appshunter.io/ios/app/flat-belly-workout-plan/id1574475049)

Achieve a toned stomach with a 30-day home workout plan. This app offers effective exercises to burn fat, build muscle, and define abs in just 10-20 minutes daily. See results within your first week.

**Highlights:** 30-day flat belly program, Daily 10-20 minute workouts, Home-based exercises, Fat burning and muscle building, Visible results in the first week

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |
| Lose Belly Fat | $1.99 | one-time |
| Exercises for Beginners | $1.99 | one-time |
| Fat Burning HIIT Workout | $1.99 | one-time |
| Abs, Butt and Thighs | $1.99 | one-time |
| Plank Variations Exercises | $1.99 | one-time |
| Ultimate 10-Week Program | $2.99 | one-time |
| Full Bundle | $4.99 | one-time |


### Zeus Spartan Workout

[App page](https://appshunter.io/ios/app/zeus-spartan-workout/id6766826801)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flat Belly Workout Plan free?

Flat Belly Workout Plan is free to download, with in-app purchases available.

### Is Zeus Spartan Workout free?

Zeus Spartan Workout is free to download, with no in-app purchases.

### Do Flat Belly Workout Plan or Zeus Spartan Workout have ads?

Both Flat Belly Workout Plan and Zeus Spartan Workout show ads.

### Which is updated more often, Flat Belly Workout Plan or Zeus Spartan Workout?

Flat Belly Workout Plan ships an update every 3 weeks, and Zeus Spartan Workout every 2 weeks. Most recently, Flat Belly Workout Plan was updated on October 10, 2026 and Zeus Spartan Workout on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*