# Plank Workout & Core Trainer vs Plank Timer | Dr. Simplicity

The clearest difference is in-app purchases: Plank Timer | Dr. Simplicity at none against Plank Workout & Core Trainer's 3. Plank Timer | Dr. Simplicity also leads on update cadence (every 5 days vs every 2 months). Plank Workout & Core Trainer's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Plank Workout & Core Trainer sells 3 in-app purchases, starting at $11.49 per month. Plank Timer | Dr. Simplicity asks for nothing beyond the download.

Plank Workout & Core Trainer ships an update every 2 months, Plank Timer | Dr. Simplicity every 5 days. Both last shipped on October 4, 2026.

## The numbers

| Metric | Plank Workout & Core Trainer | Plank Timer | Dr. Simplicity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/plank-workout-and-core-trainer/id1618715238/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 99 MB | 9 MB |
| Requires iOS | 16.6 | **15.3** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Riafy Technologies Pvt. Ltd.](https://appshunter.io/developer/918478397) | [Saihou Ieong](https://appshunter.io/developer/1676200405) |

## What reviewers say

### Plank Workout & Core Trainer

[App page](https://appshunter.io/ios/app/plank-workout-and-core-trainer/id1618715238)

Build core strength and improve posture with progressive plank training. This app offers personalized coaching, seamless health integration, and equipment-free workouts for measurable results at home.

**Highlights:** Progressive plank training, Personalized coaching, Posture improvement, Apple Health integration, Equipment-free workouts, Measurable results tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plank Workouts Monthly | $11.49 | per month |
| Plank Workout Half Yearly | $39.99 | per 6 months |
| Plank Workout Discounted | $39.99 | per 6 months |


### 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 Plank Workout & Core Trainer free?

Plank Workout & Core Trainer 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 Plank Workout & Core Trainer or Plank Timer | Dr. Simplicity have ads?

Plank Timer | Dr. Simplicity shows ads; Plank Workout & Core Trainer does not.

### Which is updated more often, Plank Workout & Core Trainer or Plank Timer | Dr. Simplicity?

Plank Workout & Core Trainer ships an update every 2 months, and Plank Timer | Dr. Simplicity every 5 days. Most recently, Plank Workout & Core Trainer was updated on October 4, 2026 and Plank Timer | Dr. Simplicity on October 4, 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.*