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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.

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.

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

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

Audience

Vibe-coders and product teams at fintech, tech-enabled marketplaces, and international platforms that send OTPs to users in more than one country.

Audience

Developers and startups with a mobile or web app that need push notifications, login approval, passkeys or email OTP.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

No images available

Pricing

No information available.
Free Version Not Supported
Free Trial Supported

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

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

SecondFactor
Founded: 2020
Singapore
secondfactor.ai

Company Information

SignOps
Founded: 2026
signops.dev

Alternatives

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Categories

Categories

Integrations

Amazon Cognito Not Supported
Auth0 Not Supported
Better Auth Not Supported
Firebase Not Supported
Model Context Protocol (MCP) Not Supported
Supabase Not Supported

Integrations

Amazon Cognito Supported
Auth0 Supported
Better Auth Supported
Firebase Supported
Model Context Protocol (MCP) Supported
Supabase Supported
Claim SecondFactor and update features and information
Claim SecondFactor and update features and information
Claim SignOps and update features and information
Claim SignOps and update features and information