# Caleon vs Unstar

The clearest difference is in-app purchases: Caleon at none against Unstar's 2. Caleon also leads on iOS requirement (15.0 vs 17.6). Unstar's advantage is update cadence (every 2 days vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Unstar sells 2 in-app purchases, starting at $2.99 per month. Caleon asks for nothing beyond the download.

Caleon ships an update every 5 weeks, Unstar every 2 days. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Caleon | Unstar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Size | 88 MB | 2 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Caleon](https://appshunter.io/developer/1562109109) | [Hiroki Usui](https://appshunter.io/developer/1894889332) |

## What reviewers say

### Caleon

[App page](https://appshunter.io/ios/app/caleon/id1562109107)

**In-app purchases:** none


### Unstar

[App page](https://appshunter.io/ios/app/unstar/id6766188812)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deep Reading Monthly Plan | $2.99 | per month |
| Deep Reading Half-Year Plan | $12.99 | per 6 months |


## Frequently asked questions

### Is Caleon free?

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

### Is Unstar free?

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

### Do Caleon or Unstar have ads?

Neither Caleon nor Unstar shows ads.

### Which is updated more often, Caleon or Unstar?

Caleon ships an update every 5 weeks, and Unstar every 2 days. Most recently, Caleon was updated on October 7, 2026 and Unstar on October 20, 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.*