# 66 Challenge vs Gotcha

The clearest difference is in-app purchases: Gotcha at none against 66 Challenge's 3. 66 Challenge's advantage is iOS requirement (13.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. 66 Challenge sells 3 in-app purchases, starting at $3.99 per month. Gotcha asks for nothing beyond the download.

## The numbers

| Metric | 66 Challenge | Gotcha |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/66-challenge/id6758270405/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Freemium | — |
| Size | 18 MB | 4 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Moad Ghajjate El Fal](https://appshunter.io/developer/1871890791) | [佳辉 崔](https://appshunter.io/developer/6785985480) |

## What reviewers say

### 66 Challenge

[App page](https://appshunter.io/ios/app/66-challenge/id6758270405)

Build lasting habits with a science-backed system designed to guide you through a 66-day journey. Track daily progress, visualize your transformation, and stay motivated with social features and achievements. Transform your life one habit at a time.

**Highlights:** Daily habit tracking, Progress visualization, Streak protection, Social feed and squads, Customizable reminders, Achievement badges

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Annual | $29.99 | per year |
| Pro Lifetime | $59.99 | one-time |


### Gotcha

[App page](https://appshunter.io/ios/app/gotcha-remember-every-item/id6788549634)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 66 Challenge free?

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

### Is Gotcha free?

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

### Do 66 Challenge or Gotcha have ads?

Neither 66 Challenge nor Gotcha 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.*