# Aster vs Private Cycle Journal

The clearest difference is in-app purchases: Private Cycle Journal at none against Aster's 2. Private Cycle Journal also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Aster sells 2 in-app purchases, starting at $3.99 per month. Private Cycle Journal asks for nothing beyond the download.

Aster ships an update every 3 weeks, Private Cycle Journal every 2 weeks. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Aster | Private Cycle Journal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 2 MB | 30 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Gradatim Pty Ltd](https://appshunter.io/developer/6792458445) | [Luke Hardman](https://appshunter.io/developer/6793683879) |

## What reviewers say

### Aster

[App page](https://appshunter.io/ios/app/aster-endometriosis-tracker/id6792458443)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aster Premium Monthly | $3.99 | per month |
| Aster Premium Yearly | $29.99 | per year |


### Private Cycle Journal

[App page](https://appshunter.io/ios/app/private-cycle-journal/id6793683877)

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

**In-app purchases:** none


## Frequently asked questions

### Is Aster free?

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

### Is Private Cycle Journal free?

Private Cycle Journal is free to download, with no in-app purchases.

### Do Aster or Private Cycle Journal have ads?

Neither Aster nor Private Cycle Journal shows ads.

### Which is updated more often, Aster or Private Cycle Journal?

Aster ships an update every 3 weeks, and Private Cycle Journal every 2 weeks. Most recently, Aster was updated on October 24, 2026 and Private Cycle Journal on October 8, 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.*