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Version
1.0
Size
2.35 Mb
Updated
4 weeks ago
Released
02 Sep 2026
Description
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.
Estimates
Availability
Devices
iPhone5s
iPadAir
iPadAirCellular
iPadMiniRetina
iPadMiniRetinaCellular
iPhone6
iPhone6Plus
iPadAir2
iPadAir2Cellular
iPadMini3
iPadMini3Cellular
iPodTouchSixthGen
iPhone6s
iPhone6sPlus
iPadMini4
iPadMini4Cellular
iPadPro
iPadProCellular
iPadPro97
iPadPro97Cellular
iPhoneSE
iPhone7
iPhone7Plus
iPad611
iPad612
iPad71
iPad72
iPad73
iPad74
iPhone8
iPhone8Plus
iPhoneX
iPad75
iPad76
iPhoneXS
iPhoneXSMax
iPhoneXR
iPad812
iPad834
iPad856
iPad878
iPadMini5
iPadMini5Cellular
iPadAir3
iPadAir3Cellular
iPodTouchSeventhGen
iPhone11
iPhone11Pro
iPadSeventhGen
iPadSeventhGenCellular
iPhone11ProMax
iPhoneSESecondGen
iPadProSecondGen
iPadProSecondGenCellular
iPadProFourthGen
iPadProFourthGenCellular
iPhone12Mini
iPhone12
iPhone12Pro
iPhone12ProMax
iPadAir4
iPadAir4Cellular
iPadEighthGen
iPadEighthGenCellular
iPadProThirdGen
iPadProThirdGenCellular
iPadProFifthGen
iPadProFifthGenCellular
iPhone13Pro
iPhone13ProMax
iPhone13Mini
iPhone13
iPadMiniSixthGen
iPadMiniSixthGenCellular
iPadNinthGen
iPadNinthGenCellular
iPhoneSEThirdGen
iPadAirFifthGen
iPadAirFifthGenCellular
iPhone14
iPhone14Plus
iPhone14Pro
iPhone14ProMax
iPadTenthGen
iPadTenthGenCellular
iPadPro11FourthGen
iPadPro11FourthGenCellular
iPadProSixthGen
iPadProSixthGenCellular
Pricing by country
| Country | Price |
|---|---|
| Canada | free |
| China | free |
| UK | free |
| India | free |
| Japan | free |
| Korea, Republic Of | free |
| Russia | free |
| Turkey | free |
| USA | free |
| Ukraine | free |