Authsignal vs OpenOTP Authentication Server

Authsignal

Figure	Authsignal	OpenOTP Authentication Server
Price from	$499/mo	Free
Free plan	—	Yes
Free trial	Yes	Yes
Open source	—	—
Web	Yes	Yes
Windows	—	Yes
macOS	—	Yes
Linux	—	Yes
iOS	Yes	Yes
Android	Yes	Yes
API	Yes	Yes
Self-hosted	—	Yes
Plans published	2	7
Spec score · Multi-Factor Authentication APIs	8.5 (#5)	8.0 (#12)
Authentication methods	The platform offers passkeys, face and palm biometrics, SMS and email OTP, WhatsApp OTP, TOTP, push authentication, magic links, and ID verification.	Listed methods include mobile push, FIDO2/passkeys, YubiKey, OATH tokens, SMS, email, printed OTP lists, and PKI certificate authentication.
Headquarters	Authsignal Ltd lists its address as 10/77 Cook Street, Auckland Central, Auckland 1010, New Zealand.	Esch-sur-Alzette, Luxembourg
Intended customers	Authsignal says it is built for consumer-facing businesses and highlights financial services, healthcare, payments, and loyalty.	RCDevs says it serves SMEs and large corporations across IT, finance, healthcare, and government sectors.
Support	Professional includes priority support through a Slack or Teams channel and onboarding; Enterprise includes dedicated support channels and an assigned account manager.	The feature table lists SLA and support services as optional, and RCDevs links to product documentation and community forums.

Authsignal has no write-up on Specifiction yet; its figures are above.

OpenOTP Authentication Server has no write-up on Specifiction yet; its figures are above.