# 30 Day vs Plank Challenge

The clearest difference is rating: Plank Challenge at 4.7 against 30 Day's 3.5. Plank Challenge also leads on review sentiment (66% vs 29%) and update cadence (every 3 weeks vs every 8 months). 30 Day's advantage is ads (none vs shown) and iOS requirement (10.0 vs 16.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. 30 Day sells 2 one-off in-app purchases and Plank Challenge sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Plank Challenge holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 430 and 476 respectively. Written reviews point the same way: 29% of 30 Day's written reviews are positive against 66% of Plank Challenge's.

30 Day ships an update every 8 months, Plank Challenge every 3 weeks. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | 30 Day | Plank Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (430 ratings)](https://appshunter.io/ios/app/30-day-plank-challenge/id1030759187/reviews) | **[4.7 (476 ratings)](https://appshunter.io/ios/app/plank-challenge-core-workout/id1083360252/reviews)** |
| Number of ratings | 430 | **476** |
| Positive reviews | 28.9% of reviews | **65.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 40 MB | 17 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jozic Productions Pty Ltd](https://appshunter.io/developer/470171631) | [Bo Kalvslund](https://appshunter.io/developer/572272193) |

## What reviewers say

### 30 Day

[App page](https://appshunter.io/ios/app/30-day-plank-challenge/id1030759187)

This app offers a structured 30-day plan to build a strong core through daily plank exercises. It gradually increases intensity, includes rest days, and features multiple workout variations suitable for all fitness levels.

**Highlights:** 30-day plank exercise plan, Gradually increasing intensity, Includes rest days, 6 workouts, 8 plank exercise variations, Progress tracking, Social sharing

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |

**What reviewers like**

- 🚀 Simple and straightforward
- 🚀 Easy to use
- 👍 Keeps you motivated
- 👍 Good visual and text explanations
- 👍 Variety of levels to choose from

**What reviewers complain about**

- 🐛 Formatting issues on newer iPhones
- 🐛 Inability to progress past certain days
- 🐛 Zoomed-in screen that prevents accessing all days
- 🐛 Ads can be intrusive
- 🐛 Steep difficulty increase between days

**Reported bugs**

- App getting stuck on certain days
- Inability to select day 1 due to screen formatting
- Completed checkmarks overlapping next day's exercise
- Volume issues during exercises
- Sharing/syncing functionality not working

**Requested features**

- Ability to start on any day or level
- Countdown before exercise starts
- Ability to track progress across multiple devices
- Gradual difficulty increase between days
- Maintenance mode after completing challenges


### 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


## Frequently asked questions

### Is 30 Day free?

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

### Is Plank Challenge free?

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

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

Plank Challenge is rated higher. 30 Day averages 3.5 out of 5 from 430 ratings, while Plank Challenge averages 4.7 from 476 ratings.

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

Plank Challenge shows ads; 30 Day does not.

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

30 Day ships an update every 8 months, and Plank Challenge every 3 weeks. Most recently, 30 Day was updated on November 1, 2026 and Plank Challenge on November 11, 2026.

---

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