Topspeed Battery Assistant vs Yi BMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Topspeed Battery Assistant
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A battery information viewing application, including two connection modes, you can use network connection, input battery number (for example: 102910), or Bluetooth connection, to view some battery parameters information, including battery power, voltage, cell voltage, battery parameters and so on. You can also view battery shutdown logs and alarms
Yi BMS
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This app connects to the BMS of Yifang battery pack via bluetooth, you can easily check the status of the battery, including voltage, current, temperature, alarm status and other data, and you can set the battery's operating parameters.
Screenshots
Verdict
The clearest difference is iOS requirement: Yi BMS at 12.0 against Topspeed Battery Assistant's 15. 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.
Topspeed Battery Assistant ships an update every 2 months, Yi BMS every 3 months. The most recent releases landed on August 21, 2026 and September 21, 2026 respectively.
| Parameter | Topspeed Battery Assistant | Yi BMS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15 | 12.0 — better |
| Further details — not scored | ||
| Size | 72 MB | 32 MB |
| Age rating | 4+ | 17+ |
| Developer | Hangzhou Xingyun Power Source Technology Co., Ltd. | Shenzhen Yifang new energy technology Co., Ltd |
In-app purchases
Topspeed Battery Assistant
No in-app purchases
Yi BMS
No in-app purchases
Questions
Is Topspeed Battery Assistant free?
Is Yi BMS free?
Do Topspeed Battery Assistant or Yi BMS have ads?
Which is updated more often, Topspeed Battery Assistant or Yi BMS?
Other comparisons
