# GR TECH vs Haiz Smart

The clearest difference is update cadence: GR TECH at every 5 weeks against Haiz Smart's every 18 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.

GR TECH ships an update every 5 weeks, Haiz Smart every 18 months. The most recent releases landed on May 17, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | GR TECH | Haiz Smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 18 months |
| Size | 65 MB | 208 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Anlix Analise e Programacao de Sistemas EIRELI ME](https://appshunter.io/developer/1395939752) | [Yong Hong](https://appshunter.io/developer/1575310922) |

## What reviewers say

### GR TECH

[App page](https://appshunter.io/ios/app/gr-tech/id1554113816)

**Features:** macOS Compatibility

**In-app purchases:** none


### Haiz Smart

[App page](https://appshunter.io/ios/app/haiz-smart/id1632444360)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GR TECH free?

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

### Is Haiz Smart free?

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

### Do GR TECH or Haiz Smart have ads?

Neither GR TECH nor Haiz Smart shows ads.

### Which is updated more often, GR TECH or Haiz Smart?

GR TECH ships an update every 5 weeks, and Haiz Smart every 18 months. Most recently, GR TECH was updated on May 17, 2026 and Haiz Smart on September 14, 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.*