# Holyiot vs GridHUBB

The clearest difference is update cadence: GridHUBB at every 4 months against Holyiot's every 24 months. Holyiot's advantage is iOS requirement (12.0 vs 16.0). 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.

Holyiot ships an update every 24 months, GridHUBB every 4 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Holyiot | GridHUBB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 4 months** |
| Size | 16 MB | 179 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Hong yi yun jia technology Co.,LTD](https://appshunter.io/developer/1188616341) | [Hubbell Inc](https://appshunter.io/developer/1263996930) |

## What reviewers say

### Holyiot

[App page](https://appshunter.io/ios/app/holyiot-dfu/id6445978221)

**Features:** macOS Compatibility

**In-app purchases:** none


### GridHUBB

[App page](https://appshunter.io/ios/app/gridhubb/id6499595556)

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

**In-app purchases:** none


## Frequently asked questions

### Is Holyiot free?

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

### Is GridHUBB free?

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

### Do Holyiot or GridHUBB have ads?

Neither Holyiot nor GridHUBB shows ads.

### Which is updated more often, Holyiot or GridHUBB?

Holyiot ships an update every 24 months, and GridHUBB every 4 months. Most recently, Holyiot was updated on October 7, 2026 and GridHUBB on October 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.*