# 和暦ウォッチ vs BatteryWatch

The clearest difference is ads: 和暦ウォッチ at none against BatteryWatch's shown. 和暦ウォッチ also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 17.0). On price, 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.

和暦ウォッチ ships an update every 4 days, BatteryWatch every 3 weeks. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 和暦ウォッチ | BatteryWatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 3 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Yutaro Yoshizawa](https://appshunter.io/developer/1528001085) | [Shunsuke Kubo](https://appshunter.io/developer/6772584174) |

## What reviewers say

### 和暦ウォッチ

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

**Features:** Apple Watch app

**In-app purchases:** none


### BatteryWatch

[App page](https://appshunter.io/ios/app/batterywatch/id6775494762)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 和暦ウォッチ free?

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

### Is BatteryWatch free?

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

### Do 和暦ウォッチ or BatteryWatch have ads?

BatteryWatch shows ads; 和暦ウォッチ does not.

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

和暦ウォッチ ships an update every 4 days, and BatteryWatch every 3 weeks. Most recently, 和暦ウォッチ was updated on November 4, 2026 and BatteryWatch on November 10, 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.*