# 90 Day Challenge vs MainGain

The clearest difference is rating: MainGain at 5.0 against 90 Day Challenge's 4.8. 90 Day Challenge's advantage is ratings volume (16 vs 2) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 90 Day Challenge sells 5 in-app purchases, starting at $1.99 per month and MainGain sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MainGain holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 90 Day Challenge has 16 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | 90 Day Challenge | MainGain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (16 ratings)](https://appshunter.io/ios/app/90-day-challenge-resettr/id6743643363/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/maingain/id6752734524/reviews)** |
| Number of ratings | **16** | 2 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | Freemium |
| Size | 87 MB | 1 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [John Kevin Basco](https://appshunter.io/developer/1803746571) | [Maxwell Isley](https://appshunter.io/developer/1831085518) |

## What reviewers say

### 90 Day Challenge

[App page](https://appshunter.io/ios/app/90-day-challenge-resettr/id6743643363)

Build lasting habits with a personalized 90-day program tailored to your lifestyle and goals. This offline-first app offers custom tasks for sleep, water, exercise, and more, with progressive challenges and visual progress tracking.

**Highlights:** Personalized 90-day habit program, Customized daily tasks, Progressive difficulty, Offline functionality, Visual progress tracking, Focus on sleep, water, exercise, and screen time

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly | $1.99 | per month |
| Yearly - Bonus | $4.49 | per year |
| Monthly Pro | $7.99 | per month |
| yearly | $14.99 | per year |
| Yearly Pro | $29.99 | per year |


### MainGain

[App page](https://appshunter.io/ios/app/maingain/id6752734524)

This app helps you accurately determine your daily calorie needs for weight maintenance using a 14-day tracking method. It removes guesswork by analyzing your actual food intake and weight changes, providing personalized results for fitness goals like bulking or cutting.

**Highlights:** 14-day tracking for accurate maintenance calories, Meal and weight tracking, Barcode scanning for food entry, Product search for food items, Data export (CSV/JSON), Privacy-first, data stays on device

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MainGain Pro | $4.99 | one-time |


## Frequently asked questions

### Is 90 Day Challenge free?

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

### Is MainGain free?

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

### Which has better reviews, 90 Day Challenge or MainGain?

MainGain is rated higher. 90 Day Challenge averages 4.8 out of 5 from 16 ratings, while MainGain averages 5.0 from 2 ratings.

### Do 90 Day Challenge or MainGain have ads?

Neither 90 Day Challenge nor MainGain 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.*