Comparison

Loupe vs Button API

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Loupe

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
Read full 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.

About

Button API

Features
Read full description

Button API turns your iPhone or iPad into a physical-like remote control for web services. It is a smart, interactive button for instant HTTP/HTTPS requests, designed specifically for automation, testing, and integrations. The app is built for developers, system administrators, smart home enthusiasts, and QA engineers. It helps you trigger automation scenarios (IoT, Node-RED, Home Assistant), test webhooks, manage server processes, send notifications, or demonstrate API functionality with a single tap. Key Features: Flexible Request Configuration Full control over your requests: support for GET, POST, PUT, PATCH, and DELETE methods. Custom headers and request body. Dynamic templates: automatically insert press timestamps or battery level data into the request body. Complete Interface Customization Button builder: adjust text, shape, size, and colors to suit your needs. Custom graphics: set your own images for normal and pressed states. Screen background: choose a solid color, an image, or a live feed from the device's camera. Control & Stability Prevention of accidental triggers: rate limiting and cooldown modes. Security: restrict access to settings with a 6-digit PIN code. Logging & Data Portability Built-in log: keep track of sent requests, server responses, and errors locally. Export data: save history as CSV or TXT files. Quick setup: import and export configurations to quickly replicate your setup across devices. How It Works Setup takes less than a minute: specify your target URL (endpoint), customize the button's appearance, and send your first request. Button API eliminates the need for writing console scripts or using bulky tools when you need a simple solution: one tap, one action, reliable results.

Screenshots

Loupe4 screens
Button API3 screens

Verdict

The call

The clearest difference is chart position: Loupe at #162 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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 9 level
Loupe versus Button API: the parameters behind the verdict, then further details
ParameterLoupeButton API
PriceFreeFree
Rating5.0 (404 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings404 — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#162 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.0 — better
Further details — not scored
Size8 MB2 MB
Age rating4+4+
DeveloperMysk Inc.Kirill Dzuba

In-app purchases

None

Loupe

No in-app purchases

None

Button API

No in-app purchases

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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