---
title: "Loupe: What Apps Can See - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Ever wondered how advertisers recognize you across apps and websites? It usually comes down to fingerprinting: small, ordinary details about your device, combined until the mix is rare enough to point"
---

# Loupe: What Apps Can See — United States
> Privacy & Security Guide

![Loupe App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/9a/63/47/9a6347a0-4d9b-deaf-a8fd-7314cd56c0ea/Loupe-0-0-1x_U007epad-0-1-sRGB-85-220.png/434x0w.png)

**Developer:** [Mysk](https://apptail.io/developer/mysk-aoxd)
**Category:** Developer Tools
**Rating:** 5.0/5 (138 ratings)
**Price:** Free
**Bundle ID:** co.mysk.loupe
**Store:** Apple App Store
**Country:** United States
**Version:** 1.0.1 (released 2026-06-12)
**Original Release:** 2026-06-05
**Languages:** German, Arabic, English, French, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Chinese, Turkish, Ukrainian, Vietnamese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6766152470)
**AppTail Page:** [https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/united-states](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/united-states)

## Loupe Description
Ever wondered how advertisers recognize you across apps and websites? It usually comes down to fingerprinting: small, ordinary details about your device, combined until the mix is rare enough to point back to you.

Loupe lets you see those details yourself. It reads the same public iOS APIs that third-party apps use, showing you the raw data and explaining why it matters.

WHAT YOU CAN EXPLORE
Trackers don't need your name, email, or location to recognize you. Your region, languages, settings, storage, and sensors create a pattern distinctive enough to follow you online. Loupe puts these readings in one place so you can see exactly what you're sharing.

THREE LEVELS OF ACCESS
Loupe sorts every reading by how much access it takes:

- Passive: readable by any app with no prompt at all, from your time zone and keyboard languages to your battery and storage.
- Needs permission: readings that trigger an iOS prompt, like location, contacts, photos, and motion.
- Advanced: side channels that public APIs allow, like checking which apps you have installed, graphics checks in a hidden browser, and a record that survives reinstalling the app.

NOTHING LEAVES YOUR IPHONE
Loupe reads everything on your device and keeps it there. Nothing is uploaded, synced, or shared unless you export it yourself. There are no accounts and no analytics.

A FEW THINGS YOU CAN LOOK AT
- The region, languages, and settings that hint at where you live and travel
- Your screen, graphics, storage, and battery details
- The name on a paired accessory, which often gives away your own name
- Which popular apps you have installed, worked out without any permission
- The exact second your device was set up or last erased

Loupe is built by Mysk, a security research team. It exposes the tracking surface of your iPhone, so you can decide what to do about it.

## Loupe Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/12/4b/a0/124ba049-16e6-b06f-d7ae-736723a0c98c/iPad_Screenshot_1_-_en-CA.png/2064x2752.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/13/86/82/138682b3-7045-465a-e77e-992137568c68/iPad_Screenshot_2_-_en-CA.png/2064x2752.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/50/77/92/50779248-bc8b-185f-136d-d70d0bb56729/iPad_Screenshot_3_-_en-CA.png/2064x2752.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/fc/d6/6a/fcd66ac5-10bc-e1be-48f5-aba4de482eba/iPad_Screenshot_4_-_en-CA.png/2064x2752.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6c/00/a3/6c00a30b-1f2e-b427-993c-0401b6aa9221/iPad_Screenshot_5_-_en-CA.png/2064x2752.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fd/2f/1b/fd2f1bbe-e9fb-ff3b-ddbb-de1dbec96772/iPad_Screenshot_6_-_en-CA.png/2064x2752.png)

## Loupe Rating Breakdown in United States
- 5 stars: 136 (99%)
- 4 stars: 2 (1%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## Loupe Reviews in United States

### ***** "Will help me persuade my friends who don’t care about privacy:)"
Title
-- -_-Stanger, 2026-06-18

### ***** "Perfectly executed!"
The general public NEEDS to know about this app, it's even open source and presents the information in an easily understandable way for not tech-savvy people
-- 5Joken009, 2026-06-18

### ***** "Delicious with maple syrup."
Everyone should try this app.  Then go through all the scary information it provides and stay up all night being fearful about the 10,000 apps you have accumulated on your iPad and iPhones.  Its fun!  Be careful with the maple syrup though.  I took my phone out of my pocket and found pocket lint stuck to the syrup.  I had to give the phone to a Labrador Retriever for a thorough tongue washing.  Its clean now, and works great, but I can only use it on speaker because when I hold it close to my face the intense smell of doggie breath gives me an irresistible urge  to chase tennis balls.  The first time it happened I ran out in the street and was almost run over by a postal delivery truck.  I was okay, but I ended up chasing the truck for three blocks, barking loudly.
-- Diogenes' Cat, 2026-06-12

### ****- "Thanks - very informative"
Well, I discovered this through an article in Apple News.  Some of what this app reveals is more than a little scary, but also reassuring to see that you have most stuff locked down as far as possible.  I find it very informative, thank you very much.  I’ll be telling several folk about this app.
-- Pinocchio's Noze, 2026-06-08

### ***** "fun"
its cool to see these details
-- q8j., 2026-06-08

### ***** "Omg"
Omg,
-- εtuton, 2026-06-08

### ***** "Very cool"
Awesome they are bringing attention to these fjngerprintable attributes
-- Tedward apleProReview, 2026-06-07

### ***** "👻"
好吓人啊
-- 🇹🇼：）, 2026-06-07

[View all Loupe reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Loupe Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Czechia | Developer Tools | #1 |
| Top Free | Australia | Developer Tools | #3 |
| Top Free | Germany | Developer Tools | #3 |
| Top Free | Denmark | Developer Tools | #3 |
| Top Free | Finland | Developer Tools | #3 |
| Top Free | Netherlands | Developer Tools | #3 |
| Top Free | Switzerland | Developer Tools | #3 |
| Top Free | Austria | Developer Tools | #4 |
| Top Free | Hungary | Developer Tools | #4 |
| Top Free | Greece | Developer Tools | #4 |
| Top Free | Norway | Developer Tools | #4 |
| Top Free | Belgium | Developer Tools | #5 |
| Top Free | United States | Developer Tools | #5 |
| Top Free | Poland | Developer Tools | #5 |
| Top Free | New Zealand | Developer Tools | #5 |
| Top Free | Canada | Developer Tools | #5 |
| Top Free | Ireland | Developer Tools | #5 |
| Top Free | Spain | Developer Tools | #5 |
| Top Free | United Kingdom | Developer Tools | #6 |
| Top Free | Romania | Developer Tools | #6 |
| Top Free | Portugal | Developer Tools | #6 |
| Top Free | Sweden | Developer Tools | #6 |
| Top Free | Hong Kong SAR China | Developer Tools | #6 |
| Top Free | France | Developer Tools | #7 |
| Top Free | Italy | Developer Tools | #7 |
| Top Free | Türkiye | Developer Tools | #9 |
| Top Free | South Africa | Developer Tools | #9 |
| Top Free | India | Developer Tools | #10 |
| Top Free | China | Developer Tools | #10 |
| Top Free | Mexico | Developer Tools | #11 |
| Top Free | Japan | Developer Tools | #12 |
| Top Free | Israel | Developer Tools | #13 |
| Top Free | Chile | Developer Tools | #14 |
| Top Free | Ukraine | Developer Tools | #14 |
| Top Free | Singapore | Developer Tools | #14 |
| Top Free | Malaysia | Developer Tools | #18 |
| Top Free | United Arab Emirates | Developer Tools | #18 |
| Top Free | South Korea | Developer Tools | #19 |
| Top Free | Colombia | Developer Tools | #19 |
| Top Free | Argentina | Developer Tools | #20 |
| Top Free | Philippines | Developer Tools | #20 |
| Top Free | Brazil | Developer Tools | #21 |
| Top Free | Peru | Developer Tools | #23 |
| Top Free | Azerbaijan | Developer Tools | #24 |
| Top Free | Egypt | Developer Tools | #25 |
| Top Free | Taiwan | Developer Tools | #27 |
| Top Free | Lebanon | Developer Tools | #30 |
| Top Free | Indonesia | Developer Tools | #31 |
| Top Free | Russia | Developer Tools | #32 |
| Top Free | Kazakhstan | Developer Tools | #33 |
| Top Free | Thailand | Developer Tools | #36 |
| Top Free | Dominican Republic | Developer Tools | #40 |
| Top Free | Saudi Arabia | Developer Tools | #42 |
| Top Free | Ecuador | Developer Tools | #45 |
| Top Free | Pakistan | Developer Tools | #46 |
| Top Free | Vietnam | Developer Tools | #57 |
| Top Free | Nigeria | Developer Tools | #58 |
| Top Free | Belarus | Developer Tools | #67 |
| Top Free | Kuwait | Developer Tools | #78 |
| Top Free | Czechia | Overall | #207 |



## Loupe Available In
- [Germany](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/germany)
- [United States](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/united-states)
- [Canada](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/canada)
- [Japan](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/japan)
- [Türkiye](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/turkey)
- [Poland](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/poland)
- [Ukraine](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/ukraine)
- [Argentina](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/argentina)
- [Russia](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/russia)
- [South Korea](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/south-korea)
- [Vietnam](https://apptail.io/app/loupe-was-apps-sehen-konnen-udkA/vietnam)

---

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