# 0 vs Plank Challenge

The clearest difference is ads: 0 at none against Plank Challenge's shown. 0 also leads on ratings volume (2.1K vs 472). Plank Challenge's advantage is update cadence (every 3 weeks vs every 2 months). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. 0 sells 3 in-app purchases, starting at $4.99 per month and Plank Challenge 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 0 against 4.7 for Plank Challenge. Both are backed by a comparable volume of ratings — 2.1K and 472 respectively. Written reviews are what separate them: 59% of 0's written reviews are positive against 66% of Plank Challenge's.

0 ships an update every 2 months, Plank Challenge every 3 weeks. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 0 | Plank Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.1K ratings)](https://appshunter.io/ios/app/0-200-situps-trainer-challenge/id698136992/reviews)** | [4.7 (472 ratings)](https://appshunter.io/ios/app/plank-challenge-core-workout/id1083360252/reviews) |
| Number of ratings | **2.1K** | 472 |
| Positive reviews | 58.9% of reviews | **65.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 68 MB | 17 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zen Labs](https://appshunter.io/developer/485971738) | [Bo Kalvslund](https://appshunter.io/developer/572272193) |

## What reviewers say

### 0

[App page](https://appshunter.io/ios/app/0-200-situps-trainer-challenge/id698136992)

This app guides users through an 8-week program to build strength and stamina, aiming to achieve 200 situps. It offers voice cues, progress tracking, and community sharing features, with a free trial available.

**Highlights:** 8-week training program, Voice cues for guidance, Achieve badges and awards, Social media integration, Free trial period, Unlimited access with pass

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Unlimited Pass Monthly | $4.99 | per month |
| Zen Power Playlist 3 Months | $29.99 | per 3 months |
| Zen Unlimited Pass Annual | $74.99 | per year |

**What reviewers like**

- 👍 Simple and effective
- 🚀 Motivating and inspiring
- 💪 Gradually builds up strength

**What reviewers complain about**

- 🔒 Locked features after paid purchase
- 💰 Expensive subscription model
- 🔁 Forced to pay again for previously purchased content

**Reported bugs**

- Timer pauses when switching apps
- Lack of background audio playback

**Requested features**

- Ability to adjust workout intensity and rest times
- Option to skip warm-up
- Workout progress tracking improvements


### 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 0 free?

0 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, 0 or Plank Challenge?

0 is rated higher. 0 averages 4.7 out of 5 from 2.1K ratings, while Plank Challenge averages 4.7 from 472 ratings.

### Do 0 or Plank Challenge have ads?

Plank Challenge shows ads; 0 does not.

### Which is updated more often, 0 or Plank Challenge?

0 ships an update every 2 months, and Plank Challenge every 3 weeks. Most recently, 0 was updated on October 24, 2026 and Plank Challenge on October 23, 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.*