# Plank Challenge vs 30 day

The clearest difference is update cadence: 30 day at every 9 days against Plank Challenge's every 3 weeks. 30 day also leads on review sentiment (75% vs 66%) and iOS requirement (13.0 vs 16.0). Plank Challenge's advantage is ratings volume (472 vs 155). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Plank Challenge sells 1 one-off in-app purchase and 30 day sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Plank Challenge against 4.7 for 30 day. Both are backed by a comparable volume of ratings — 472 and 155 respectively. Written reviews are what separate them: 66% of Plank Challenge's written reviews are positive against 75% of 30 day's.

Plank Challenge ships an update every 3 weeks, 30 day every 9 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | Plank Challenge | 30 day |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (472 ratings)](https://appshunter.io/ios/app/plank-challenge-core-workout/id1083360252/reviews)** | [4.7 (155 ratings)](https://appshunter.io/ios/app/30-day-plank-challenges/id1532055684/reviews) |
| Number of ratings | **472** | 155 |
| Positive reviews | 65.7% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 14 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [Bustgrow Ltd](https://appshunter.io/developer/1729557461) |

## What reviewers say

### Plank Challenge

[App page](https://appshunter.io/ios/app/plank-challenge-core-workout/id1083360252)

This app guides you through a 5-week program to build up to a 4-minute plank. It requires no equipment and can be done in just 4 minutes daily, with rest days incorporated for recovery. It also includes a bonus push-up progression.

**Highlights:** 5-week structured plank program, Progressive push-up training, Daily workout instructions, Progress tracking, Apple Music integration, Distraction-free interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plank Challenge Pro | $0.99 | one-time |

**What reviewers like**

- 👍 Simple and effective
- 💪 Great for plank challenges
- 🎯 Helps build stamina
- ✅ Good for beginners
- ✨ Straightforward design

**What reviewers complain about**

- 🔇 Music pauses during sets
- 🎵 Lack of in-app music/motivation
- ❓ No clear guidance on plank types
- 🎛️ No timer customization
- 👎 Push-up part lacks challenge

**Reported bugs**

- App crashes after iOS 13 update
- No times displayed after iOS 13 update
- Audio mutes automatically between active and rest
- App not running after iOS 13 update

**Requested features**

- Allow self-designed workouts
- Integrate reminders
- Add in-app music or motivational sounds
- Provide explanation on different plank types
- Include countdowns and motivational cues


### 30 day

[App page](https://appshunter.io/ios/app/30-day-plank-challenges/id1532055684)

This app offers a structured approach to plank exercises for at-home training. It focuses on core strength, weight loss, and improved posture through progressive challenges. Users can customize plans, track progress, and receive guidance for various fitness levels.

**Highlights:** Core muscle development, Back and spinal health support, Boosted metabolism, Improved posture, Static and dynamic plank options, Customizable exercise plans, Progress tracking with timer

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version | $0.99 | one-time |

**What reviewers like**

- 👍 Great for beginners
- 👍 Free and simple
- 👍 Motivating and effective
- 👍 Easy to use interface
- 👍 Good for stress relief

**What reviewers complain about**

- 🐛 Slow loading times
- 🐛 App crashes or doesn't open
- 🐛 Single workout per day
- 🐛 Unrealistic progression on advanced levels
- 🐛 Timer error on advanced level

**Reported bugs**

- Timer error on advanced level (22nd day)
- App doesn't load or opens very slowly
- App crashes on launch after update
- App stops loading after first day

**Requested features**

- Add widgets
- Add reminders and notifications
- Review plank technique
- View past days' seconds
- Develop higher levels and new sports


## Frequently asked questions

### Is Plank Challenge free?

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

### Is 30 day free?

30 day is free to download, with in-app purchases available.

### Which has better reviews, Plank Challenge or 30 day?

Plank Challenge is rated higher. Plank Challenge averages 4.7 out of 5 from 472 ratings, while 30 day averages 4.7 from 155 ratings.

### Do Plank Challenge or 30 day have ads?

Both Plank Challenge and 30 day show ads.

### Which is updated more often, Plank Challenge or 30 day?

Plank Challenge ships an update every 3 weeks, and 30 day every 9 days. Most recently, Plank Challenge was updated on October 29, 2026 and 30 day on October 29, 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.*