# Her 75 vs Arc

The clearest difference is iOS requirement: Her 75 at 15.1 against Arc's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Her 75 sells 3 in-app purchases, starting at $7.99 per 7 days and Arc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Her 75 ships an update weekly, Arc every 9 days. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Her 75 | Arc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5.2K ratings)](https://appshunter.io/ios/app/her-75/id6746784659/reviews)** | — |
| Number of ratings | **5.2K** | — |
| Positive reviews | 56.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Subscription | — |
| Size | 126 MB | 18 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [My Viral Agent](https://appshunter.io/developer/1847389319) | [岚烜 吴](https://appshunter.io/developer/6788589687) |

## What reviewers say

### Her 75

[App page](https://appshunter.io/ios/app/her-75/id6746784659)

Embark on a 75-day personal transformation journey with friends. Track daily tasks, water intake, and progress in real-time. Choose from pre-set challenges or create your own custom goals.

**Highlights:** 75-day challenge tracking, Friend progress visibility, Customizable to-do lists, Water intake tracking, Pre-set and custom challenges, Real-time updates

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $7.99 | per 7 days |
| Premium Monthly | $14.99 | per month |
| Premium Yearly | $49.99 | per year |


### Arc

[App page](https://appshunter.io/ios/app/arc-75-day-challenge-tracker/id6796747380)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arc Pro | $6.99 | one-time |


## Frequently asked questions

### Is Her 75 free?

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

### Is Arc free?

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

### Do Her 75 or Arc have ads?

Neither Her 75 nor Arc shows ads.

### Which is updated more often, Her 75 or Arc?

Her 75 ships an update weekly, and Arc every 9 days. Most recently, Her 75 was updated on October 25, 2026 and Arc on October 7, 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.*