# BTワットチェッカー vs Yoshino

The clearest difference is update cadence: Yoshino at every 6 weeks against BTワットチェッカー's every 3 months. Yoshino also leads on iOS requirement (13.0 vs 15.6). BTワットチェッカー's advantage is review sentiment (36% vs 25%). On price, ads, in-app purchases and monetization model there is nothing between them.

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

BTワットチェッカー ships an update every 3 months, Yoshino every 6 weeks. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BTワットチェッカー | Yoshino |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.4 (11 ratings)](https://appshunter.io/ios/app/yoshino/id1631074294/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | **35.7% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 3 MB | 25 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RATOC Systems, Inc.](https://appshunter.io/developer/568725272) | [Suzhou Yaxinneng Power Technology Co., Ltd.](https://appshunter.io/developer/1631074416) |

## What reviewers say

### BTワットチェッカー

[App page](https://appshunter.io/ios/app/bt/id1490362165)

Monitor and control power consumption with real-time data visualization. Convert energy usage into electricity costs and CO2 emissions, with historical data presented in graphs. Save measurement data to CSV files and remotely manage power ON/OFF.

**Highlights:** Real-time power, current, and voltage display, Convert energy usage to cost and CO2 emissions, Historical data in bar graphs (hourly, daily, monthly, yearly), Save measurement data to CSV, Remote power ON/OFF control

**Features:** macOS Compatibility

**In-app purchases:** none


### Yoshino

[App page](https://appshunter.io/ios/app/yoshino/id1631074294)

Control your YOSHINO energy storage device with a simple interface. Bind your device via Bluetooth and Wi-Fi to monitor charging and discharging status, view device data, and adjust settings like charging limits and standby time. Customize temperature units and system language.

**Highlights:** Device binding via Bluetooth and Wi-Fi, Monitor charging and discharging status, View device data and parameters, Control device ports, Adjust device settings (nickname, Wi-Fi, limits), Customize temperature units and language

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BTワットチェッカー free?

BTワットチェッカー is free to download, with no in-app purchases.

### Is Yoshino free?

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

### Do BTワットチェッカー or Yoshino have ads?

Neither BTワットチェッカー nor Yoshino shows ads.

### Which is updated more often, BTワットチェッカー or Yoshino?

BTワットチェッカー ships an update every 3 months, and Yoshino every 6 weeks. Most recently, BTワットチェッカー was updated on October 25, 2026 and Yoshino on October 7, 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.*