# HAIDI vs MAP BMS

The clearest difference is update cadence: MAP BMS at every 13 months against HAIDI's every 32 months. MAP BMS also leads on iOS requirement (11.0 vs 14.0). 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.

HAIDI ships an update every 32 months, MAP BMS every 13 months. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | HAIDI | MAP BMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 13 months** |
| Size | 11 MB | 48 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SHENZHEN SMARTEC TECHNOLOGY COMPANY LIMITED](https://appshunter.io/developer/1190436409) | [Haidi Energy Tehcnogy Co., Ltd](https://appshunter.io/developer/1645467042) |

## What reviewers say

### HAIDI

[App page](https://appshunter.io/ios/app/haidi/id1528654656)

**Features:** macOS Compatibility

**In-app purchases:** none


### MAP BMS

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HAIDI free?

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

### Is MAP BMS free?

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

### Do HAIDI or MAP BMS have ads?

Neither HAIDI nor MAP BMS shows ads.

### Which is updated more often, HAIDI or MAP BMS?

HAIDI ships an update every 32 months, and MAP BMS every 13 months. Most recently, HAIDI was updated on September 29, 2026 and MAP BMS on October 4, 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.*