# Caleon vs One

The clearest difference is update cadence: One at every 3 days against Caleon's every 5 weeks. One also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Caleon ships an update every 5 weeks, One every 3 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Caleon | One |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Size | 88 MB | 20 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Caleon](https://appshunter.io/developer/1562109109) | [Yuga Matsumi](https://appshunter.io/developer/1866567850) |

## What reviewers say

### Caleon

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

**In-app purchases:** none


### One

[App page](https://appshunter.io/ios/app/one-line-diary-mood-log/id6757390722)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Caleon free?

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

### Is One free?

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

### Do Caleon or One have ads?

Neither Caleon nor One shows ads.

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

Caleon ships an update every 5 weeks, and One every 3 days. Most recently, Caleon was updated on October 27, 2026 and One on October 31, 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.*