RfnBMS vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RfnBMS
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BMS设备管理，包括设备电压，电流，功率，温度，充电开关，放电开关，历史数据
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
The clearest difference is update cadence: E at every 5 weeks against RfnBMS's every 24 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.
RfnBMS ships an update every 24 months, E every 5 weeks. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.
| Parameter | RfnBMS | E |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 24 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 | 2 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | 亚妹 李 | 建军 刘 |
In-app purchases
RfnBMS
No in-app purchases
E
No in-app purchases
