Best Solo 2 Alternatives in 2026
Updated
14 apps from security keys ranked against Solo 2 on the same published basis.
- 1Solo 2 vs Yubico Authenticator
- 2Solo 2 vs Deepnet SafeKey
- 3Solo 2 vs SafeNet MobilePASS+
- 4Solo 2 vs Swissbit iShield Key 2
- 5Solo 2 vs FEITIAN ePass FIDO-NFC Security Key
- 7Solo 2 vs Token2 T2F2-NFC-Slim
- 8Solo 2 vs YubiKey 5 Series
- 9Solo 2 vs Nitrokey 3
- 10Solo 2 vs Titan Security Key
- 11Solo 2 vs Token2 PIN+ Release3.3
- 12Solo 2 vs TrustKey T110
- 13Solo 2 vs FEITIAN Mobile Authenticator
- 14Solo 2 vs HID Approve
- 15Solo 2 vs CipherTrust Secrets Management
Solo 2 alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Yubico Authenticator | 6.8 | Free plan | Free | Android, iOS, Linux, Mac, Windows |
| 2 | Deepnet SafeKey | 5.7 | No | — | Android, iOS, Mac, Web, Windows |
| 3 | SafeNet MobilePASS+ | 5.7 | No | — | Android, iOS, Mac, Windows |
| 4 | Swissbit iShield Key 2 | 5.5 | No | — | Android, iOS, Linux, Mac, Windows |
| 5 | FEITIAN ePass FIDO-NFC Security Key | 5.4 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 7 | Token2 T2F2-NFC-Slim | 5.4 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 8 | YubiKey 5 Series | 5.4 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 9 | Nitrokey 3 | 5.3 | No | — | Android, iOS, Linux, Mac, Windows |
| 10 | Titan Security Key | 5.3 | No | — | Android, iOS, Mac, Web, Windows |
| 11 | Token2 PIN+ Release3.3 | 5.3 | No | — | Android, iOS, Linux, Mac, Windows |
| 12 | TrustKey T110 | 5.3 | No | — | Windows, Web |
| 13 | FEITIAN Mobile Authenticator | 5.2 | No | — | Android, iOS, Windows |
| 14 | HID Approve | 5.2 | No | — | Android, API, iOS, Mac, Windows |
| 15 | CipherTrust Secrets Management | 5.0 | No | — | self-hosted, Web |
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Questions about Solo 2 alternatives
What is the best alternative to Solo 2?
Yubico Authenticator, number 1 in security keys with a score of 6.8 out of 10. The others here: Deepnet SafeKey, SafeNet MobilePASS+, Swissbit iShield Key 2 and 10 more.
What is the best free alternative to Solo 2?
Yubico Authenticator is the best-ranked alternative with a free plan. 1 of the 14 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.