# ポケット万年暦 vs Light Signals

The clearest difference is in-app purchases: Light Signals at none against ポケット万年暦's 1. Light Signals also leads on update cadence (weekly vs every 4 months). ポケット万年暦's advantage is iOS requirement (15.1 vs 26.1). On price, ads and device support there is nothing between them.

Both are free to download. ポケット万年暦 sells 1 one-off in-app purchase. Light Signals asks for nothing beyond the download.

ポケット万年暦 ships an update every 4 months, Light Signals weekly. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ポケット万年暦 | Light Signals |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 37 MB | 5 MB |
| Requires iOS | **15.1** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Keisuke Nishimura](https://appshunter.io/developer/961409573) | [MIZOU, CO., LTD.](https://appshunter.io/developer/1542553141) |

## What reviewers say

### ポケット万年暦

[App page](https://appshunter.io/ios/app/id1245138589)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告解除 | $1.99 | one-time |


### Light Signals

[App page](https://appshunter.io/ios/app/light-signals-morse-code/id6756871661)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ポケット万年暦 free?

ポケット万年暦 is free to download, with in-app purchases available.

### Is Light Signals free?

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

### Do ポケット万年暦 or Light Signals have ads?

Both ポケット万年暦 and Light Signals show ads.

### Which is updated more often, ポケット万年暦 or Light Signals?

ポケット万年暦 ships an update every 4 months, and Light Signals weekly. Most recently, ポケット万年暦 was updated on October 12, 2026 and Light Signals on October 6, 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.*