# 75 Days Challenge vs Time Since

The clearest difference is iOS requirement: 75 Days Challenge at 12.4 against Time Since's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 75 Days Challenge sells 1 one-off in-app purchase and Time Since sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

75 Days Challenge ships an update every 3 weeks, Time Since monthly. The most recent releases landed on August 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 75 Days Challenge | Time Since |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (46 ratings)](https://appshunter.io/ios/app/75-days-challenge-tracker/id6451491151/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 34 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Muhammed Asaad Nadeem](https://appshunter.io/developer/1601934665) | [Lior Zukman](https://appshunter.io/developer/1845410217) |

## What reviewers say

### 75 Days Challenge

[App page](https://appshunter.io/ios/app/75-days-challenge-tracker/id6451491151)

This app guides users through a 75-day fitness and mental resilience challenge. It offers comprehensive workout routines, progress tracking, and features to build discipline and self-confidence. It also includes options for the 75 Soft Challenge and group fitness.

**Highlights:** Comprehensive fitness routines, Progress tracking, Discipline building, Mental resilience development, Habit creation, 75 Soft Challenge integration, Accountability partner

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 75 Day Challenge | $4.99 | one-time |


### Time Since

[App page](https://appshunter.io/ios/app/time-since-streak-tracker/id6787023926)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Time Since - Premium | $1.99 | one-time |


## Frequently asked questions

### Is 75 Days Challenge free?

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

### Is Time Since free?

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

### Do 75 Days Challenge or Time Since have ads?

Neither 75 Days Challenge nor Time Since shows ads.

### Which is updated more often, 75 Days Challenge or Time Since?

75 Days Challenge ships an update every 3 weeks, and Time Since monthly. Most recently, 75 Days Challenge was updated on August 23, 2026 and Time Since on September 10, 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.*