# SMART BMS vs YN BMS

The clearest difference is update cadence: SMART BMS at every 6 weeks against YN BMS's every 3 months. SMART BMS also leads on iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SMART BMS ships an update every 6 weeks, YN BMS every 3 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SMART BMS | YN BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (76 ratings)](https://appshunter.io/ios/app/smart-bms/id1519968339/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 17.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 65 MB | 24 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [所兵 邱](https://appshunter.io/developer/1519230775) | [海妮 席](https://appshunter.io/developer/1819811421) |

## What reviewers say

### SMART BMS

[App page](https://appshunter.io/ios/app/smart-bms/id1519968339)

Connect to and manage your lithium battery via Bluetooth. Monitor battery status, query information, and set safety parameters. Receive alerts for battery faults and track their occurrences.

**Highlights:** Bluetooth battery connection, Battery status query, Fault alarm monitoring, Safety parameter settings, Password protection for settings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Functional app
- 👍 Easy to use
- 🔋 Works with lithium batteries
- 💡 Displays cell balance information

**What reviewers complain about**

- 🐛 Connection issues
- 🐛 Crashes and freezes
- 🐛 Unreliable data
- 🐛 Compatibility problems with updates
- 🔋 Drains phone battery

**Reported bugs**

- Bluetooth connectivity problems
- Incorrect series/parallel configuration display
- Firmware update issues
- Inconsistent data readings
- Inability to change settings

**Requested features**

- Dark mode option
- Logging and historical data
- Better parameter customization
- Improved battery monitoring metrics
- Apple Watch support


### YN BMS

[App page](https://appshunter.io/ios/app/yn-bms/id6747100018)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SMART BMS free?

SMART BMS is free to download, with no in-app purchases.

### Is YN BMS free?

YN BMS is free to download, with no in-app purchases.

### Do SMART BMS or YN BMS have ads?

Neither SMART BMS nor YN BMS shows ads.

### Which is updated more often, SMART BMS or YN BMS?

SMART BMS ships an update every 6 weeks, and YN BMS every 3 months. Most recently, SMART BMS was updated on October 7, 2026 and YN BMS on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*