# 0 vs Solterra

The clearest difference is in-app purchases: Solterra at none against 0's 3. Solterra also leads on iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. 0 sells 3 in-app purchases, starting at $4.99 per month. Solterra asks for nothing beyond the download.

## The numbers

| Metric | 0 | Solterra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.1K ratings)](https://appshunter.io/ios/app/0-200-situps-trainer-challenge/id698136992/reviews)** | — |
| Number of ratings | **2.1K** | — |
| Positive reviews | 58.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 30 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Zen Labs](https://appshunter.io/developer/485971738) | [I Do Swipe LLC](https://appshunter.io/developer/1246221740) |

## 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


### Solterra

[App page](https://appshunter.io/ios/app/solterra/id6477998915)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 0 free?

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

### Is Solterra free?

Solterra is free to download, with no in-app purchases.

### Do 0 or Solterra have ads?

Neither 0 nor Solterra shows ads.

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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.*