# LUIS vs Sample and Adjust

The clearest difference is iOS requirement: LUIS at 8.0 against Sample and Adjust's 13.0. 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.

## The numbers

| Metric | LUIS | Sample and Adjust |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 23 MB | 199 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tibbo Technology Inc.](https://appshunter.io/developer/1307324555) | [Endress and Hauser Instruments International AG](https://appshunter.io/developer/513969520) |

## What reviewers say

### LUIS

[App page](https://appshunter.io/ios/app/luis/id1450127637)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sample and Adjust

[App page](https://appshunter.io/ios/app/sample-and-adjust/id6467094957)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LUIS free?

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

### Is Sample and Adjust free?

Sample and Adjust is free to download, with no in-app purchases.

### Do LUIS or Sample and Adjust have ads?

Neither LUIS nor Sample and Adjust shows ads.

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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.*