HumanCheck
Two-factor for people
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Pair your friends and family members once with a shared secret, then exchange two rotating HumanCodes to verify each other. No accounts, backend, or network required.
HumanCheck is two-factor authentication for people.
Pair with someone you trust using a shared secret. HumanCheck securely derives relationship material on each iPhone. You each choose a different HumanCode, confirm that both phones agree, and save the relationship locally.
Later, when you need confidence that you are speaking with the same person, exchange your rotating six-digit HumanCodes. Each phone shows which code to say and which code to expect from the other person.
PRIVATE BY DESIGN
- No accounts
- No phone number or email verification
- No backend or cloud synchronization
- No advertising, analytics, or tracking
- No third-party dependencies
- HumanCodes work completely offline after pairing
SECURE LOCAL STORAGE
Relationship keys are stored in the iPhone Keychain (an encrypted software database stored on your device's file system) and remain bound ONLY to that device. Your friend's names and non-secret relationship metadata stay in local app storage. Shared secrets used to generate the pair are not retained after pairing.
OPTIONAL APP PROTECTION
You can require Face ID, Touch ID, or the device passcode before HumanCheck displays your Humans and HumanCodes. HumanCheck also covers sensitive content when the app becomes inactive.
IMPORTANT LIMITATIONS
A matching HumanCode shows that both devices possess the same previously established relationship material. It does not prove legal identity, prove who is holding an unlocked phone, or protect against someone who participated in or observed the original pairing. Pair privately with a person you already trust.
If a device is lost, erased, replaced, or a relationship is removed, pair again in person or through another trusted channel.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Dulio Denis, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Dulio Denis
- Size
- 2.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Dulio Denis
