# BMS电池卫士 vs LANNI BMS

The clearest difference is update cadence: LANNI BMS at fortnightly against BMS电池卫士's every 44 months. 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, LANNI BMS fortnightly. The most recent releases landed on May 14, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | BMS电池卫士 | LANNI BMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 44 months | **Fortnightly** |
| Size | 9 MB | 29 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [锦欢 林](https://appshunter.io/developer/1467148377) | [鹏 张](https://appshunter.io/developer/1425725690) |

## What reviewers say

### BMS电池卫士

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

**Features:** macOS Compatibility

**In-app purchases:** none


### LANNI BMS

[App page](https://appshunter.io/ios/app/lanni-bms/id6463234610)

**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 LANNI BMS free?

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

### Do BMS电池卫士 or LANNI BMS have ads?

Neither BMS电池卫士 nor LANNI BMS shows ads.

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

BMS电池卫士 ships an update every 44 months, and LANNI BMS fortnightly. Most recently, BMS电池卫士 was updated on May 14, 2026 and LANNI BMS on August 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.*