Aviationstack ◆
Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.

Hanko (Developer Tools): Hanko is an open-source authentication and user management platform with passkeys, MFA, and SSO for modern apps. Pricing: from Free – $29/mo. (data verified July 2026)
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Hanko is an open-source authentication and user management platform built for modern web and mobile apps. It provides passkeys, passwords, passwordless login, multi-factor authentication (MFA), and social SSO — all under your control. Deploy on your own infrastructure or use the managed Hanko Cloud.
Hanko eliminates vendor lock-in and high costs of proprietary auth services like Auth0, Clerk, or Firebase Auth. Developers get a privacy-first, scalable alternative that keeps user data on their servers. It also solves password fatigue by supporting passkeys and biometric authentication, reducing friction and improving security.
Hanko is ideal for SaaS startups, B2C apps, and B2B platforms that need a flexible, self-hostable auth solution. It’s perfect for developers who want full control over their user authentication stack. It is not for non-technical teams who prefer fully managed, no-code login integrations — Hanko requires API or SDK implementation.
Use Hanko to add passkey login to your e‑commerce store, enable MFA for your SaaS dashboard, or deploy passwordless authentication in your mobile app. Its FIDO2-certified Passkey API can integrate into existing auth systems, and the White-Label Authenticator App lets you offer push-based authentication under your own brand.
Editorial score from our review methodology — not user ratings.
Hanko pricing: Free – $29/mo. Billing model: Free.
10,000 free monthly active users, 2 projects, passkeys/passwords/passwordless, social SSO, MFA, custom domain, admin dashboard, community support. No credit card required.
10,000 free MAUs then $0.01 per MAU above that, 5 projects, passkeys/passwords/passwordless, social SSO, MFA, custom domain, admin dashboard, personal support (Email, Slack), team member invites, webhooks, admin API, custom SMTP, SAML SSO ($49/mo per connection).
Volume discounts, all Pro features, 99.99% uptime SLA, priority support, admin dashboard SSO, extended audit log retention, commercial license option, private cloud, custom features. Contact for pricing.
Startup plan available: 1 million MAUs free for eligible startups.
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