# Just Workout vs Plank Challenge

The clearest difference is in-app purchases: Just Workout at none against Plank Challenge's 1. Just Workout also leads on iOS requirement (9.3 vs 18.0). Plank Challenge's advantage is update cadence (every 3 months vs every 20 months). On price, ads and device support there is nothing between them.

Both are free to download. Plank Challenge sells 1 one-off in-app purchase. Just Workout asks for nothing beyond the download.

Just Workout ships an update every 20 months, Plank Challenge every 3 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Just Workout | Plank Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 months** |
| Size | 2 MB | 5 MB |
| Requires iOS | **9.3** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Simon Gaus](https://appshunter.io/developer/998393314) | [AppConsult](https://appshunter.io/developer/1818576565) |

## What reviewers say

### Just Workout

[App page](https://appshunter.io/ios/app/just-workout/id1387187146)

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

**In-app purchases:** none


### Plank Challenge

[App page](https://appshunter.io/ios/app/plank-challenge-30-days/id6746803064)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Planking Pro | $4.99 | one-time |


## Frequently asked questions

### Is Just Workout free?

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

### Is Plank Challenge free?

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

### Do Just Workout or Plank Challenge have ads?

Neither Just Workout nor Plank Challenge shows ads.

### Which is updated more often, Just Workout or Plank Challenge?

Just Workout ships an update every 20 months, and Plank Challenge every 3 months. Most recently, Just Workout was updated on November 2, 2026 and Plank Challenge on October 30, 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.*