Related Products
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About
SecondFactor is a cloud service for generating, sending, and verifying one-time passcodes (OTPs) for account sign-up, login, and other phone-verification workflows. Product and engineering teams integrate it through an API and SDKs for Kotlin, Swift, Dart, TypeScript, and server-side development, then manage authentication templates from a dashboard. For each OTP, its Price Intelligence Engine selects the lowest-cost eligible channel based on destination pricing and recipient eligibility. If delivery is not confirmed within eight seconds, automatic fallback tries the next eligible channel. SecondFactor supports SMS, WhatsApp, Viber, and RCS, subject to destination, recipient, and account setup. Delivery logs show the destination, channel, status, and cost for each request. The service handles OTP generation, delivery, and verification so teams can add phone verification to their applications and manage delivery across multiple channels and markets.
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About
SignOps is a hosted developer API for adding push messaging and sign-in flows to web and mobile applications. Developers can register devices under their existing user IDs, send Android, iOS and web push messages to users or topics, schedule messages, use templates, and review delivery events. The service also provides phone-based login approvals with number matching and biometric confirmation, passkey sign-in on a customer’s domain, TOTP authenticator codes with backup codes, and email one-time passwords. REST endpoints, server SDKs, mobile and web SDKs, a team dashboard, and signed webhooks support integration with an application’s existing backend and identity provider. It is designed for developers and teams building applications that need notifications, passwordless authentication, or additional sign-in verification.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Vibe-coders and product teams at fintech, tech-enabled marketplaces, and international platforms that send OTPs to users in more than one country.
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Audience
Developers and startups with a mobile or web app that need push notifications, login approval, passkeys or email OTP.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and VideosNo images available
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Screenshots and VideosNo images available
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Supported
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Pricing
₹499/month
Starter costs Rs 499/month plus usage, before 18% GST. It includes 5,000 push devices, 100 approvals per day, 1,000 email codes per month, 100,000 authenticator checks per month, unlimited passkey sign-ins, 3 apps and 50 team members. Extra usage is Rs 0.02 per approval, Rs 0.03 per email code and Rs 0.20 per excess Starter push device; extra authenticator checks cost Rs 100 per 50,000. The Free plan costs Rs 0/month and includes 1,000 push devices, 100 approvals per month, 10,000 authenticator checks per month and 500 email codes once. Monthly billing is in arrears by UPI autopay or card. Annual Starter or Pro prepayment gives two months free; usage is still billed monthly.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationSecondFactor
Founded: 2020
Singapore
secondfactor.ai
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Company InformationSignOps
Founded: 2026
signops.dev
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Categories |
Categories |
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Integrations
Amazon Cognito
Not Supported
Auth0
Not Supported
Better Auth
Not Supported
Firebase
Not Supported
Model Context Protocol (MCP)
Not Supported
Supabase
Not Supported
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Integrations
Amazon Cognito
Supported
Auth0
Supported
Better Auth
Supported
Firebase
Supported
Model Context Protocol (MCP)
Supported
Supabase
Supported
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