# Modii vs 75 Days Challenge

The clearest difference is in-app purchases: Modii at none against 75 Days Challenge's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 75 Days Challenge sells 3 in-app purchases, starting at $7.99 per 7 days. Modii asks for nothing beyond the download.

## The numbers

| Metric | Modii | 75 Days Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/75-days-challenge-own75/id6804744924/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | — | Subscription |
| Size | 3 MB | 24 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [晓伟 庄](https://appshunter.io/developer/1479798494) | [Kai Chi Tsao](https://appshunter.io/developer/1299477756) |

## What reviewers say

### Modii

[App page](https://appshunter.io/ios/app/modii/id6661028983)

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

**In-app purchases:** none


### 75 Days Challenge

[App page](https://appshunter.io/ios/app/75-days-challenge-own75/id6804744924)

Build and track custom 75-day challenges for habits like fitness, wellness, or reading. Make progress visible with daily logs, photo proof, and friend invitations. The app stores your data locally or syncs securely with iCloud.

**Highlights:** Customizable 75-day challenges, Daily habit tracking, Photo proof for progress, Friend invitations and progress sharing, Timely reminders, Local data storage or iCloud sync

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Own75 Weekly | $7.99 | per 7 days |
| Own75 Annual | $29.99 | per year |
| Own75 Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Modii free?

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

### Is 75 Days Challenge free?

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

### Do Modii or 75 Days Challenge have ads?

Neither Modii nor 75 Days Challenge 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.*