# 75 Day Challenge vs Workd

The clearest difference is review sentiment: Workd at 100% against 75 Day Challenge's 9%. Workd also leads on update cadence (every 2 weeks vs every 6 weeks). 75 Day Challenge's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 75 Day Challenge sells 7 in-app purchases, starting at $1.99 per 7 days and Workd sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

75 Day Challenge ships an update every 6 weeks, Workd every 2 weeks. Both last shipped on August 1, 2026.

## The numbers

| Metric | 75 Day Challenge | Workd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/workd-ai-workout-tracker/id6752341930/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 9.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 38 MB | 69 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nadezhda Tereshkova](https://appshunter.io/developer/1588884701) | [Liam Karol Mathers](https://appshunter.io/developer/1838953788) |

## What reviewers say

### 75 Day Challenge

[App page](https://appshunter.io/ios/app/75-day-challenge/id1590868775)

This app guides users through a 75-day mental toughness challenge. It helps build consistency by tracking daily tasks and offers customization for diet and workout preferences. Users can also document their progress with photo galleries.

**Highlights:** 75-day mental toughness challenge, Track 6 daily non-negotiable tasks, Customizable diet and workout plans, Built-in habit tracking, Add custom habits, Full 75-day calendar view, Progress photo gallery

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 75 Day Challenge Premium | $1.99 | per 7 days |
| 75 Day Challenge Premium | $4.99 | per month |
| 75 Day Challenge | $4.99 | per month |
| 75 Day Challenge Premium | $9.99 | per year |
| 75 Day Challenge Premium | $19.99 | per 3 months |
| 75 Day Challenge Premium | $29.99 | per year |
| 75 Day Challenge Premium | $9.99 | one-time |


### Workd

[App page](https://appshunter.io/ios/app/workd-ai-workout-tracker/id6752341930)

Effortlessly log workouts with AI-powered import and a fun mascot. Track progress with smart insights and visualize your gains. Stay motivated with streaks and live activity updates.

**Highlights:** AI workout import, Custom routine builder, Smart set/rep logging, Progress insights and charts, Accountability mascot, Live Activities integration, iCloud sync

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Workd Pro Monthly | $2.99 | per month |
| Workd Pro Yearly | $24.99 | per year |
| Workd Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is 75 Day Challenge free?

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

### Is Workd free?

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

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

Neither 75 Day Challenge nor Workd shows ads.

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

75 Day Challenge ships an update every 6 weeks, and Workd every 2 weeks. Most recently, 75 Day Challenge was updated on August 1, 2026 and Workd on August 1, 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.*