Yi BMS vs Smart Controller Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Smart Controller Pro
Control your trailer's braking system wirelessly via Bluetooth. Adjust brake parameters, receive alerts for trailer malfunctions, and detect wiring faults for safe and reliable operation.
- Bluetooth connectivity
- Trailer braking control
- Adjustable brake parameters
- Failure alerts
- Wiring fault detection
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This application connects to the Mobile Brake Controller via Bluetooth, as demonstrated in the attached video. It supports trailer braking control, allows you to freely adjust brake parameters, provides failure alerts for trailer malfunctions, and detects wiring faults in the trailer harness. The trailer module features reliable safety design with no potential safety hazards, bringing safe and trouble-free use to users.
Screenshots
Verdict
The clearest difference is ads: Smart Controller Pro at none against Yi BMS's shown. Smart Controller Pro also leads on update cadence (every 4 days vs every 3 months). On price, in-app purchases, device support and iOS requirement 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.
Yi BMS ships an update every 3 months, Smart Controller Pro every 4 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.
| Parameter | Yi BMS | Smart Controller Pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 32 MB | 42 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen Yifang new energy technology Co., Ltd | QI Automotive Co.,Ltd |
In-app purchases
Yi BMS
No in-app purchases
Smart Controller Pro
No in-app purchases
Questions
Is Yi BMS free?
Is Smart Controller Pro free?
Do Yi BMS or Smart Controller Pro have ads?
Which is updated more often, Yi BMS or Smart Controller Pro?
Other comparisons
