# BMS电池卫士 vs LTW BMS

The clearest difference is update cadence: LTW BMS at every 14 months against BMS电池卫士's every 44 months. LTW BMS also leads on iOS requirement (9.0 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.

BMS电池卫士 ships an update every 44 months, LTW BMS every 14 months. The most recent releases landed on May 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | BMS电池卫士 | LTW BMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 44 months | **Every 14 months** |
| Size | 9 MB | 3 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锦欢 林](https://appshunter.io/developer/1467148377) | [Shenzhen LTW Electronic Technology Co., Ltd.](https://appshunter.io/developer/1612223765) |

## What reviewers say

### BMS电池卫士

[App page](https://appshunter.io/ios/app/bms/id1501118106)

**Features:** macOS Compatibility

**In-app purchases:** none


### LTW BMS

[App page](https://appshunter.io/ios/app/ltw-bms/id1612223763)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BMS电池卫士 free?

BMS电池卫士 is free to download, with no in-app purchases.

### Is LTW BMS free?

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

### Do BMS电池卫士 or LTW BMS have ads?

Neither BMS电池卫士 nor LTW BMS shows ads.

### Which is updated more often, BMS电池卫士 or LTW BMS?

BMS电池卫士 ships an update every 44 months, and LTW BMS every 14 months. Most recently, BMS电池卫士 was updated on May 14, 2026 and LTW BMS on September 9, 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.*