Nitrokey 3
6.7#2 in security keys€54 one-timeAndroidiOSLinuxmacOS
VisitNitrokey 3 vs Solo 2
What both publish
| Fact | Nitrokey 3 | Solo 2 |
|---|---|---|
| Authentication | Nitrokey 3 supports two-factor and passwordless authentication using a PIN and physical button touch. | It supports FIDO2, WebAuthn, and U2F; basic use requires no software installation or drivers. |
| Headquarters | Teltow, near Berlin, Germany | Newark, Delaware, United States |
| Integrations | Nitrokey documentation provides FIDO2 guides for Nextcloud, Microsoft login, Android, SSH, and Entra ID provisioning. | It works with security-key-enabled services including Google, Microsoft, Facebook, Salesforce, GitHub, Dropbox, and Twitter/X. |
| Open source | Nitrokey says its hardware and software are open source, allowing independent security reviews. | The maker says Solo 2 is fully open source: software is dual licensed under Apache 2.0 and MIT, hardware under CERN-OHL-S, and documentation under CC-BY-SA 4.0. |
| Support | Nitrokey says it offers free email support in German, English, and French, along with product guides in its documentation. | For help with a purchased device, SoloKeys directs customers to its support email or contact form. |
Nitrokey 3 plans
- Nitrokey 3A Mini€54, paid once
- Nitrokey 3A NFC€60, paid once
- Nitrokey 3C NFC€65, paid once
Solo 2 plans
- Solo 2C Security Key$34, paid once
- Solo 2 USB-A Hacker$35, paid once
- Solo 2 USB-A Security Key$35, paid once
- Solo 2A+ NFC Security Key$46, paid once
- Solo 2C+ NFC Security Key$46, paid once
Pick Nitrokey 3 if…
Nitrokey 3 suits people who want a physical key for FIDO2/U2F login, cryptographic key storage, or password management. It may also suit business users needing PIV smartcard functionality.
Pick Solo 2 if…
Solo 2 is presented for everyday users, security professionals, and enterprise teams who want a physical key for account authentication. Its Hacker model is aimed at developers, security researchers, and makers.