# ANGSTROM vs 和暦ウォッチ

The clearest difference is update cadence: 和暦ウォッチ at every 4 days against ANGSTROM's every 4 months. ANGSTROM's advantage is iOS requirement (11.0 vs 13.0). 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.

ANGSTROM ships an update every 4 months, 和暦ウォッチ every 4 days. The most recent releases landed on October 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ANGSTROM | 和暦ウォッチ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 10 MB | 3 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [PURGATIO inc.](https://appshunter.io/developer/1581986238) | [Yutaro Yoshizawa](https://appshunter.io/developer/1528001085) |

## What reviewers say

### ANGSTROM

[App page](https://appshunter.io/ios/app/angstrom/id1588375718)

**Features:** macOS Compatibility

**In-app purchases:** none


### 和暦ウォッチ

[App page](https://appshunter.io/ios/app/id6739359101)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is ANGSTROM free?

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

### Is 和暦ウォッチ free?

和暦ウォッチ is free to download, with no in-app purchases.

### Do ANGSTROM or 和暦ウォッチ have ads?

Neither ANGSTROM nor 和暦ウォッチ shows ads.

### Which is updated more often, ANGSTROM or 和暦ウォッチ?

ANGSTROM ships an update every 4 months, and 和暦ウォッチ every 4 days. Most recently, ANGSTROM was updated on October 7, 2026 and 和暦ウォッチ on October 28, 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.*