VIP vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VIP
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电池管理系统（BMS）是电池与用户之间的纽带 ，主要对象是对二次电池的保护，就是为了能够提高电池的利用率，防止电池出现过度充电和过度放电，可用于电动汽车，电瓶车，机器人，无人机等各种锂电池产品
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 iOS requirement: VIP at 9.0 against E's 12.0. On price, update cadence, ads and in-app purchases 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.
VIP ships an update every 6 weeks, E every 5 weeks. Both last shipped on October 1, 2026.
| Parameter | VIP | E |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 43 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | 步泽 王 | 建军 刘 |
In-app purchases
VIP
No in-app purchases
E
No in-app purchases
