# Herflow vs Phasa

The clearest difference is in-app purchases: Herflow at none against Phasa's 3. Herflow also leads on update cadence (daily vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Phasa sells 3 in-app purchases, starting at $3.99 per 7 days. Herflow asks for nothing beyond the download.

Herflow ships an update daily, Phasa every 3 weeks. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Herflow | Phasa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 9 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [RUEBEN ANSOLIWEN AKANKOBATENG](https://appshunter.io/developer/1880083403) | [Muhammad Saad Javaid](https://appshunter.io/developer/6824050783) |

## What reviewers say

### Herflow

[App page](https://appshunter.io/ios/app/herflow-period-cycle-tracker/id6760529907)

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

**In-app purchases:** none


### Phasa

[App page](https://appshunter.io/ios/app/phasa-private-period-tracker/id6824050541)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phasa Plus Weekly | $3.99 | per 7 days |
| Phasa Plus Monthly | $9.99 | per month |
| Phasa Plus Yearly | $29.99 | per year |


## Frequently asked questions

### Is Herflow free?

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

### Is Phasa free?

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

### Do Herflow or Phasa have ads?

Neither Herflow nor Phasa shows ads.

### Which is updated more often, Herflow or Phasa?

Herflow ships an update daily, and Phasa every 3 weeks. Most recently, Herflow was updated on October 31, 2026 and Phasa on November 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*