# RTB BLX vs INSO Config

The clearest difference is iOS requirement: INSO Config at 11.0 against RTB BLX's 16.6. 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.

RTB BLX ships an update every 7 months, INSO Config every 3 months. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | RTB BLX | INSO Config |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Size | 35 MB | 42 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RTB Elektronik](https://appshunter.io/developer/1033533477) | [INSO Control ApS](https://appshunter.io/developer/1709932839) |

## What reviewers say

### RTB BLX

[App page](https://appshunter.io/ios/app/rtb-blx/id1524448175)

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

**In-app purchases:** none


### INSO Config

[App page](https://appshunter.io/ios/app/inso-config/id6444019843)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RTB BLX free?

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

### Is INSO Config free?

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

### Do RTB BLX or INSO Config have ads?

Neither RTB BLX nor INSO Config shows ads.

### Which is updated more often, RTB BLX or INSO Config?

RTB BLX ships an update every 7 months, and INSO Config every 3 months. Most recently, RTB BLX was updated on September 25, 2026 and INSO Config on September 9, 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.*