# SmartFun vs IO

The clearest difference is in-app purchases: SmartFun at none against IO's 1. SmartFun also leads on iOS requirement (10.1 vs 17.6). IO's advantage is update cadence (every 2 weeks vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. IO sells 1 one-off in-app purchase. SmartFun asks for nothing beyond the download.

SmartFun ships an update monthly, IO every 2 weeks. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SmartFun | IO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 10 MB | 15 MB |
| Requires iOS | **10.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [ShenZhen WS Electronic Technology Corp.,Ltd](https://appshunter.io/developer/1549867730) | [CJ Solution UG (haftungsbeschraenkt)](https://appshunter.io/developer/1870234861) |

## What reviewers say

### SmartFun

[App page](https://appshunter.io/ios/app/smartfun-iot/id1549867728)

**Features:** macOS Compatibility

**In-app purchases:** none


### IO

[App page](https://appshunter.io/ios/app/io-inspector/id6758009180)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version Lifetime | $17.99 | one-time |


## Frequently asked questions

### Is SmartFun free?

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

### Is IO free?

IO is free to download, with in-app purchases available.

### Do SmartFun or IO have ads?

Neither SmartFun nor IO shows ads.

### Which is updated more often, SmartFun or IO?

SmartFun ships an update monthly, and IO every 2 weeks. Most recently, SmartFun was updated on October 14, 2026 and IO 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.*