# mysk-research/loupe

A privacy-focused iOS app that raises awareness about what native apps can see

Repository: https://github.com/mysk-research/loupe
Canonical: https://ross.abutalabs.com/products/mysk-research-loupe
Language: Swift
License: NOASSERTION
License Family: other
Last push: 2026-06-12T02:09:44+00:00

## Health v2 (maintenance only)
Score: 53/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 87, release rhythm 35, longevity 6
- inputs: {"age_days": 91, "days_push": 83, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, young, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1522, forks 58 (observed 2026-08-28T04:04:58.024383+00:00)

## What it is
Loupe is an open-source iOS and iPadOS app that demonstrates device fingerprinting by showing raw values from public iOS APIs that any third-party app can access. It educates users on what their device exposes to apps, organizing signals into passive, permission-required, and advanced side-channel tiers.

## Use cases
- see what data iOS apps can read about my device
- understand device fingerprinting on iPhone
- check which signals apps can access without permission
- learn about iOS privacy side channels like Keychain persistence
- demonstrate fingerprinting surface to others
- audit what my iPhone exposes to third-party apps

## When to choose
- you want a hands-on, on-device demonstration of iOS fingerprinting signals
- you're researching or teaching mobile privacy and tracking techniques
- you want an open-source, privacy-respecting tool that keeps all data local

## When to avoid
- you need anti-fingerprinting protection rather than awareness (use a privacy browser instead)
- you need a cross-platform tool covering Android or desktop fingerprinting
- you need automated privacy auditing or reporting rather than interactive exploration

## Facets
- artifact type: application
- maturity: active
- function: security, privacy, developer-tools
- domain: privacy, security, apple-ecosystem, education
- platform: -
- tags: device-fingerprinting, privacy-education, ipados, swift, open-source, ios, macos

## Member repositories
- mysk-research/loupe (main) score 53

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:58.024383+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:31:48.381168+00:00, confidence not recorded.
  - readme: https://github.com/mysk-research/loupe (fetched 2026-08-28T04:04:58.024383+00:00, sha 2e37ea512536)
- Data as of 2026-08-30T08:39:29.467469+00:00.