# Holyiot vs ArcSys Cloud

The clearest difference is update cadence: ArcSys Cloud at every 2 months against Holyiot's every 24 months. Holyiot's advantage is iOS requirement (12.0 vs 15.1). 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, ArcSys Cloud every 2 months. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Holyiot | ArcSys Cloud |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 months** |
| Size | 16 MB | 53 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Hong yi yun jia technology Co.,LTD](https://appshunter.io/developer/1188616341) | [Ageon Electronic Controls](https://appshunter.io/developer/1806631572) |

## What reviewers say

### Holyiot

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

**Features:** macOS Compatibility

**In-app purchases:** none


### ArcSys Cloud

[App page](https://appshunter.io/ios/app/arcsys-cloud/id6740236524)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Holyiot free?

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

### Is ArcSys Cloud free?

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

### Do Holyiot or ArcSys Cloud have ads?

Neither Holyiot nor ArcSys Cloud shows ads.

### Which is updated more often, Holyiot or ArcSys Cloud?

Holyiot ships an update every 24 months, and ArcSys Cloud every 2 months. Most recently, Holyiot was updated on September 20, 2026 and ArcSys Cloud on September 17, 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.*