# Loupe vs Button API

The clearest difference is chart position: Loupe at #194 against Button API's unranked. Button API's advantage is iOS requirement (14.0 vs 17.0). 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 | Loupe | Button API |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (476 ratings)](https://appshunter.io/ios/app/loupe-what-apps-can-see/id6766152470/reviews)** | — |
| Number of ratings | **476** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free | — |
| Best chart rank | **#194** | — |
| Size | 8 MB | 2 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mysk Inc.](https://appshunter.io/developer/394912964) | [Kirill Dzuba](https://appshunter.io/developer/1885612056) |

## What reviewers say

### Loupe

[App page](https://appshunter.io/ios/app/loupe-what-apps-can-see/id6766152470)

**Currently charting:** #194 Top Free · Developer Tools (US App Store)

This app reveals the device details advertisers use for fingerprinting, showing you what information your iPhone shares. Explore passive, permission-based, and advanced data points to understand your digital footprint. All data stays on your device, with no uploads or analytics.

**Highlights:** See device fingerprinting data, Understand data access levels, View passive data, Check permission-based data, Explore advanced data, Data stays on device

**In-app purchases:** none


### Button API

[App page](https://appshunter.io/ios/app/button-api/id6786025654)

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

**In-app purchases:** none


## Frequently asked questions

### Is Loupe free?

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

### Is Button API free?

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

### Do Loupe or Button API have ads?

Neither Loupe nor Button API 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.*