# HAIDI vs LT

The clearest difference is update cadence: LT at monthly against HAIDI's every 32 months. LT also leads on iOS requirement (12.0 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, LT monthly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HAIDI | LT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Monthly** |
| Size | 11 MB | 38 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SHENZHEN SMARTEC TECHNOLOGY COMPANY LIMITED](https://appshunter.io/developer/1190436409) | [Shenzhen LTW Electronic Technology Co., Ltd.](https://appshunter.io/developer/1612223765) |

## What reviewers say

### HAIDI

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

**Features:** macOS Compatibility

**In-app purchases:** none


### LT

[App page](https://appshunter.io/ios/app/lt-power-bms/id6753893525)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HAIDI free?

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

### Is LT free?

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

### Do HAIDI or LT have ads?

Neither HAIDI nor LT shows ads.

### Which is updated more often, HAIDI or LT?

HAIDI ships an update every 32 months, and LT monthly. Most recently, HAIDI was updated on October 27, 2026 and LT on October 25, 2026.

---

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