# MAP BMS vs EM3ev Battery Analyst

The clearest difference is update cadence: EM3ev Battery Analyst at every 2 months against MAP BMS's every 13 months. MAP BMS's advantage is iOS requirement (11.0 vs 17.0). 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.

MAP BMS ships an update every 13 months, EM3ev Battery Analyst every 2 months. The most recent releases landed on October 4, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | MAP BMS | EM3ev Battery Analyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/em3ev-battery-analyst/id6504488089/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 48 MB | 2 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Haidi Energy Tehcnogy Co., Ltd](https://appshunter.io/developer/1645467042) | [Bjørn-Andreas Lamo](https://appshunter.io/developer/1752480933) |

## What reviewers say

### MAP BMS

[App page](https://appshunter.io/ios/app/map-bms/id6443525563)

**Features:** macOS Compatibility

**In-app purchases:** none


### EM3ev Battery Analyst

[App page](https://appshunter.io/ios/app/em3ev-battery-analyst/id6504488089)

Monitor your EM3ev battery's performance in real-time. View voltage, current, temperature, and individual cell voltages. Track power consumption over time and access detailed battery status information.

**Highlights:** Bluetooth connectivity, Real-time voltage and current readings, Individual cell voltage monitoring, Temperature monitoring, Power consumption tracking, Battery information and state display

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

**In-app purchases:** none


## Frequently asked questions

### Is MAP BMS free?

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

### Is EM3ev Battery Analyst free?

EM3ev Battery Analyst is free to download, with no in-app purchases.

### Do MAP BMS or EM3ev Battery Analyst have ads?

Neither MAP BMS nor EM3ev Battery Analyst shows ads.

### Which is updated more often, MAP BMS or EM3ev Battery Analyst?

MAP BMS ships an update every 13 months, and EM3ev Battery Analyst every 2 months. Most recently, MAP BMS was updated on October 4, 2026 and EM3ev Battery Analyst on September 16, 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.*