# Ob Challenges vs Shadow Project Training

The clearest difference is iOS requirement: Shadow Project Training at 13.0 against Ob Challenges's 15.1. On update cadence, ads, in-app purchases and device support there is nothing between them.

Ob Challenges ships an update weekly, Shadow Project Training every 6 days. Both last shipped on September 10, 2026.

## The numbers

| Metric | Ob Challenges | Shadow Project Training |
| --- | --- | --- |
| Price | — | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ob-challenges/id6756707001/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 59 MB | 36 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Ob réunion](https://appshunter.io/developer/1862421101) | [Paul Merat](https://appshunter.io/developer/1884358494) |

## What reviewers say

### Ob Challenges

[App page](https://appshunter.io/ios/app/ob-challenges/id6756707001)

This sports app lets you participate in themed challenges like speed, strength, and endurance. Film or upload videos of your performance to compete against others and climb the leaderboards. A premium option unlocks all challenges.

**Highlights:** Themed sports challenges (speed, strength, endurance), Video submission for performance validation, Real-time leaderboards, Compare performance with other users, In-app video recording, Premium access to all challenges

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

**In-app purchases:** none


### Shadow Project Training

[App page](https://appshunter.io/ios/app/shadow-project-training/id6760417822)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ob Challenges free?

Pricing for Ob Challenges is not currently listed on the App Store.

### Is Shadow Project Training free?

Shadow Project Training is free to download, with no in-app purchases.

### Do Ob Challenges or Shadow Project Training have ads?

Neither Ob Challenges nor Shadow Project Training shows ads.

### Which is updated more often, Ob Challenges or Shadow Project Training?

Ob Challenges ships an update weekly, and Shadow Project Training every 6 days. Most recently, Ob Challenges was updated on September 10, 2026 and Shadow Project Training on September 10, 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.*