# CG IoT App vs ISB

The clearest difference is iOS requirement: CG IoT App at 12.0 against ISB's 15.1. 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.

CG IoT App ships an update fortnightly, ISB every 2 weeks. The most recent releases landed on September 12, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | CG IoT App | ISB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 30 MB | 52 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Curiosity Gym](https://appshunter.io/developer/1803896116) | [Indian School of Business](https://appshunter.io/developer/884930546) |

## What reviewers say

### CG IoT App

[App page](https://appshunter.io/ios/app/cg-iot-app/id6743666315)

**Features:** macOS Compatibility

**In-app purchases:** none


### ISB

[App page](https://appshunter.io/ios/app/isb-learning-app/id6760743087)

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

**In-app purchases:** none


## Frequently asked questions

### Is CG IoT App free?

CG IoT App is free to download, with no in-app purchases.

### Is ISB free?

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

### Do CG IoT App or ISB have ads?

Neither CG IoT App nor ISB shows ads.

### Which is updated more often, CG IoT App or ISB?

CG IoT App ships an update fortnightly, and ISB every 2 weeks. Most recently, CG IoT App was updated on September 12, 2026 and ISB on September 23, 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.*