EWATT vs Ultra BMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EWATT
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本应用是用于智能锂电池管理系统的工具软件。App使用低功耗蓝牙与电池管理系统（BMS）建立连接，可通过手机设备读取电池信息。
Ultra BMS
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A battery management software
Screenshots
Verdict
The clearest difference is update cadence: Ultra BMS at weekly against EWATT's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
EWATT ships an update every 2 months, Ultra BMS weekly. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.
| Parameter | EWATT | Ultra BMS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 24 MB | 30 MB |
| Age rating | 17+ | 4+ |
| Developer | 帆 刘 | 新平 罗 |
In-app purchases
EWATT
No in-app purchases
Ultra BMS
No in-app purchases
