# iWorld vs Certify by Acviss

The clearest difference is iOS requirement: iWorld at 12.2 against Certify by Acviss's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iWorld ships an update every 17 months, Certify by Acviss every 16 months. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iWorld | Certify by Acviss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/iworld/id1444737270/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 16 months** |
| Monetization | Free | — |
| Size | 161 MB | 57 MB |
| Requires iOS | **12.2** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GOLDMEDAL ELECTRICALS PRIVATE LIMITED](https://appshunter.io/developer/1056918417) | [Acviss Technologies Private Limited](https://appshunter.io/developer/1518557089) |

## What reviewers say

### iWorld

[App page](https://appshunter.io/ios/app/iworld/id1444737270)

Remotely monitor and control your home automation devices in real-time. Turn lights on or off, adjust your AC, and set custom scenes for convenience. Integrate with voice assistants for hands-free operation.

**Highlights:** Real-time device status, Remote device control, Voice command integration, Scene creation, Wi-Fi communication, Free cloud service

**In-app purchases:** none


### Certify by Acviss

[App page](https://appshunter.io/ios/app/certify-by-acviss/id1519576615)

**In-app purchases:** none


## Frequently asked questions

### Is iWorld free?

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

### Is Certify by Acviss free?

Certify by Acviss is free to download, with no in-app purchases.

### Do iWorld or Certify by Acviss have ads?

Neither iWorld nor Certify by Acviss shows ads.

### Which is updated more often, iWorld or Certify by Acviss?

iWorld ships an update every 17 months, and Certify by Acviss every 16 months. Most recently, iWorld was updated on October 21, 2026 and Certify by Acviss on October 25, 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.*