# 40 Day Challenge vs SkyCycle

The clearest difference is review sentiment: SkyCycle at 100% against 40 Day Challenge's 0%. SkyCycle also leads on rating (5.0 vs 1.0) and ratings volume (56 vs 1). 40 Day Challenge's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SkyCycle holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: SkyCycle has 56 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of 40 Day Challenge's written reviews are positive against 100% of SkyCycle's.

40 Day Challenge ships an update every 6 weeks, SkyCycle monthly. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 40 Day Challenge | SkyCycle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/40-day-challenge/id1351860748/reviews) | **[5.0 (56 ratings)](https://appshunter.io/ios/app/skycycle/id1574182760/reviews)** |
| Number of ratings | 1 | **56** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 47 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [FITFIRM GmbH](https://appshunter.io/developer/1351860747) | [SkyCycle](https://appshunter.io/developer/1770779119) |

## What reviewers say

### 40 Day Challenge

[App page](https://appshunter.io/ios/app/40-day-challenge/id1351860748)

This app helps users achieve personal goals through motivational techniques, audios, and videos. It incorporates features from positive psychology and mindfulness to improve life quality and offers daily goal tracking with configurable reminders.

**Highlights:** Collect points to track progress, Positive psychology techniques, Mindfulness audio tutorials, Video introductions to personal development areas, Daily goal tracking and reflection, Configurable reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### SkyCycle

[App page](https://appshunter.io/ios/app/skycycle/id1574182760)

Experience a unique 45-minute outdoor cycling class with advanced technology. Reserve your spot, manage your membership, and enjoy rides suitable for all fitness levels.

**Highlights:** Reserve cycling classes, Purchase memberships, State-of-the-art technology, 45-minute rides, Suitable for all fitness levels

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is 40 Day Challenge free?

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

### Is SkyCycle free?

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

### Which has better reviews, 40 Day Challenge or SkyCycle?

SkyCycle is rated higher. 40 Day Challenge averages 1.0 out of 5 from 1 ratings, while SkyCycle averages 5.0 from 56 ratings.

### Do 40 Day Challenge or SkyCycle have ads?

SkyCycle shows ads; 40 Day Challenge does not.

### Which is updated more often, 40 Day Challenge or SkyCycle?

40 Day Challenge ships an update every 6 weeks, and SkyCycle monthly. Most recently, 40 Day Challenge was updated on October 6, 2026 and SkyCycle on October 24, 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.*