# 75 Day Challenge vs SleepWindow

The clearest difference is in-app purchases: SleepWindow at none against 75 Day Challenge's 10. 75 Day Challenge's advantage is update cadence (every 4 days vs every 5 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. 75 Day Challenge sells 10 in-app purchases, starting at $1.99 per 7 days. SleepWindow asks for nothing beyond the download.

75 Day Challenge ships an update every 4 days, SleepWindow every 5 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 75 Day Challenge | SleepWindow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (57 ratings)](https://appshunter.io/ios/app/75-day-challenge-soft-tracker/id6744525032/reviews)** | — |
| Number of ratings | **57** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 months |
| Monetization | Freemium | — |
| Size | 32 MB | 1 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [John Kevin Basco](https://appshunter.io/developer/1803746571) | [Steve Jaques](https://appshunter.io/developer/1894020515) |

## What reviewers say

### 75 Day Challenge

[App page](https://appshunter.io/ios/app/75-day-challenge-soft-tracker/id6744525032)

This app helps you build healthier habits over 75 days with a flexible approach to fitness and well-being. It tracks daily progress on workouts, diet, water intake, and reading, offering a kinder alternative to stricter challenges.

**Highlights:** Daily task tracking, Progress calendar view, Customizable reminders, Offline functionality, Privacy-focused data storage, Gentle habit building

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Weekly with trial | $1.99 | per 7 days |
| Monthly | $2.99 | per month |
| Weekly Pro with trial | $4.99 | per 7 days |
| Weekly Pro | $4.99 | per 7 days |
| Monthly Pro | $5.99 | per month |
| Weekly Plus | $9.99 | per 7 days |
| Yearly | $14.99 | per year |
| Yearly Pro | $24.99 | per year |
| Lifetime | $29.99 | one-time |


### SleepWindow

[App page](https://appshunter.io/ios/app/sleepwindow/id6763144727)

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

**In-app purchases:** none


## Frequently asked questions

### Is 75 Day Challenge free?

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

### Is SleepWindow free?

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

### Do 75 Day Challenge or SleepWindow have ads?

Neither 75 Day Challenge nor SleepWindow shows ads.

### Which is updated more often, 75 Day Challenge or SleepWindow?

75 Day Challenge ships an update every 4 days, and SleepWindow every 5 months. Most recently, 75 Day Challenge was updated on November 5, 2026 and SleepWindow on October 31, 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.*