# Binary Challenge vs Certification Preparation

The clearest difference is in-app purchases: Binary Challenge at none against Certification Preparation's 2. Binary Challenge also leads on ads (none vs shown). Certification Preparation's advantage is update cadence (every 3 weeks vs every 61 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Certification Preparation sells 2 one-off in-app purchases. Binary Challenge asks for nothing beyond the download.

Binary Challenge ships an update every 61 months, Certification Preparation every 3 weeks. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Binary Challenge | Certification Preparation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 61 months | **Every 3 weeks** |
| Size | 3 MB | 42 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ola Kaare Risa](https://appshunter.io/developer/1562401648) | [Manish Salunke](https://appshunter.io/developer/1896583910) |

## What reviewers say

### Binary Challenge

[App page](https://appshunter.io/ios/app/binary-challenge/id1564728589)

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

**In-app purchases:** none


### Certification Preparation

[App page](https://appshunter.io/ios/app/certification-preparation/id6776616024)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Limited Time Offer | $9.99 | one-time |
| Course Unlock | $19.99 | one-time |


## Frequently asked questions

### Is Binary Challenge free?

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

### Is Certification Preparation free?

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

### Do Binary Challenge or Certification Preparation have ads?

Certification Preparation shows ads; Binary Challenge does not.

### Which is updated more often, Binary Challenge or Certification Preparation?

Binary Challenge ships an update every 61 months, and Certification Preparation every 3 weeks. Most recently, Binary Challenge was updated on September 17, 2026 and Certification Preparation 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.*