# Sour vs 75 hard challenge tracker

Sour and 75 hard challenge tracker are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Sour sells 2 in-app purchases, starting at $8.99 per month and 75 hard challenge tracker sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Sour | 75 hard challenge tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/75-hard-challenge-tracker-75x/id6783212604/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | — | Freemium |
| Size | 52 MB | 53 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bartolomeo Steccanella](https://appshunter.io/developer/6775868763) | [Sureshbhai Khunt](https://appshunter.io/developer/1834899614) |

## What reviewers say

### Sour

[App page](https://appshunter.io/ios/app/sour-quit-sugar-tracker/id6775868761)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sour Premium Monthly | $8.99 | per month |
| Sour Premium Yearly | $44.99 | per year |


### 75 hard challenge tracker

[App page](https://appshunter.io/ios/app/75-hard-challenge-tracker-75x/id6783212604)

This app helps users build mental toughness and healthy routines through a gamified 75-day challenge. It offers different challenge modes, custom add-ons, and RPG-style progress tracking with community support. Upgrade to Pro for advanced coaching and analysis.

**Highlights:** Multiple challenge modes (Hard, Standard, Custom), Customizable habit add-ons, RPG-style gamified progression with stats, Daily progress photo logging, Intelligent daily reminders, Community feed for support and achievements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Discounted Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is Sour free?

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

### Is 75 hard challenge tracker free?

75 hard challenge tracker is free to download, with in-app purchases available.

### Do Sour or 75 hard challenge tracker have ads?

Neither Sour nor 75 hard challenge tracker 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.*