EWATT vs E
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。
E
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This app is specifically developed for the BMS protection board, and can view the battery status in real-time.
Screenshots
Verdict
EWATT and E are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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, E every 5 weeks. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.
| Parameter | EWATT | E |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 33 MB |
| Age rating | 17+ | 4+ |
| Developer | 帆 刘 | 建军 刘 |
In-app purchases
EWATT
No in-app purchases
E
No in-app purchases
