# Integra UI vs Dúo Calculator

The clearest difference is price: Integra UI at Free against Dúo Calculator's $1.99. Integra UI also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On ads and in-app purchases there is nothing between them.

Integra UI is free to download; Dúo Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Integra UI | Dúo Calculator |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Size | 98 MB | 3 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Equipson](https://appshunter.io/developer/1175956104) | [Alejandro Hernandez Mitre](https://appshunter.io/developer/1827109770) |

## What reviewers say

### Integra UI

[App page](https://appshunter.io/ios/app/integra-ui/id6744388898)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dúo Calculator

[App page](https://appshunter.io/ios/app/duo-calculator/id6754038433)

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

**In-app purchases:** none


## Frequently asked questions

### Is Integra UI free?

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

### Is Dúo Calculator free?

Dúo Calculator costs $1.99, with no in-app purchases.

### Do Integra UI or Dúo Calculator have ads?

Neither Integra UI nor Dúo Calculator 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.*