# The 30 Day Plank Challenge vs Plank Timer | Dr. Simplicity

The clearest difference is in-app purchases: Plank Timer | Dr. Simplicity at none against The 30 Day Plank Challenge's 11. Plank Timer | Dr. Simplicity also leads on update cadence (every 5 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. The 30 Day Plank Challenge sells 11 one-off in-app purchases. Plank Timer | Dr. Simplicity asks for nothing beyond the download.

The 30 Day Plank Challenge ships an update every 5 months, Plank Timer | Dr. Simplicity every 5 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | The 30 Day Plank Challenge | Plank Timer | Dr. Simplicity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/the-30-day-plank-challenge/id1173618819/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 3.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 9 MB |
| Requires iOS | 15.6 | **15.3** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Roobol](https://appshunter.io/developer/1002996460) | [Saihou Ieong](https://appshunter.io/developer/1676200405) |

## What reviewers say

### The 30 Day Plank Challenge

[App page](https://appshunter.io/ios/app/the-30-day-plank-challenge/id1173618819)

This app guides users through a 30-day challenge to strengthen their core with plank exercises. It helps improve balance, posture, and tone abs, glutes, and hamstrings without any equipment. Suitable for all ages and fitness levels.

**Highlights:** 30-day plank challenge, Records training progress, 5 total challenges, Create custom challenges, Step-by-step intensity increase, Track best plank attempts, Beginner and intermediate plans

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Create Workouts | $0.99 | one-time |
| Plank Variations | $1.99 | one-time |
| For beginners | $1.99 | one-time |
| 90-Day Planking | $1.99 | one-time |
| Tone your Abs, Butt & Thighs | $1.99 | one-time |
| Cardio & Planks - Belly Fat | $1.99 | one-time |
| Pilates & Planks | $1.99 | one-time |
| 30 Day Plank Challenge | $1.99 | one-time |
| Create Challenges | $2.99 | one-time |
| Full Bundle | $4.99 | one-time |


### Plank Timer | Dr. Simplicity

[App page](https://appshunter.io/ios/app/plank-timer-dr-simplicity/id6566170165)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The 30 Day Plank Challenge free?

The 30 Day Plank Challenge is free to download, with in-app purchases available.

### Is Plank Timer | Dr. Simplicity free?

Plank Timer | Dr. Simplicity is free to download, with no in-app purchases.

### Do The 30 Day Plank Challenge or Plank Timer | Dr. Simplicity have ads?

Both The 30 Day Plank Challenge and Plank Timer | Dr. Simplicity show ads.

### Which is updated more often, The 30 Day Plank Challenge or Plank Timer | Dr. Simplicity?

The 30 Day Plank Challenge ships an update every 5 months, and Plank Timer | Dr. Simplicity every 5 days. Most recently, The 30 Day Plank Challenge was updated on October 23, 2026 and Plank Timer | Dr. Simplicity on October 25, 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.*