Aviationstack ◆
Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.
from $49.99/mo
About Kinde
What does Kinde do?
Kinde is a fully integrated developer platform that lets SaaS teams add authentication, billing, and user access management to their products with just a few lines of code. It solves the pain of stitching together multiple services for auth, payments, and permissions — offering a single, modern solution from sign-up to monetization.
Who is Kinde for?
Kinde is ideal for developers and engineering teams building new SaaS applications or modernizing existing ones. It is especially suited for startups and growing businesses that want to avoid complex infrastructure and ship faster. It is not for legacy on-premise systems that can't use cloud-based auth or for teams needing only a standalone email provider.
Real use cases
Use Kinde to passwordlessly onboard users, set up subscription billing, manage enterprise SSO via SAML or Entra ID, roll out features with feature flags, and secure machine-to-machine connections. Thousands of teams use it to accelerate product development while protecting user accounts with MFA and attack protection.
Key features
- Auth that fits your stack — SDKs for React, Next.js, Node.js, PHP, Python, Flutter, iOS, Android, and more.
- Passwordless & social login — Let users sign up/sign in with one click, email, SMS, or social providers.
- Enterprise SSO — Out-of-the-box SAML and Entra ID support for team access management.
- Billing built in — Monetize your product right away with subscription management and transaction fees as low as 0.5%.
- Feature management — Use feature flags for continuous deployment and controlled rollouts.
- Multi-factor authentication (MFA) — Protect users with advanced auth options including org-level MFA policies.
- Machine-to-machine (M2M) apps — Secure backend interactions and connected app integrations.
SaaSpartout Score
8.0
/10
Editorial score from our review methodology — not user ratings.
Kinde Pricing
Kinde pricing: from $0/mo.
Free — $0/month
Includes 10,500 MAU, subscriptions & billing, email/SMS/social login, MFA, B2B organizations, custom domain, custom UI, workflows, attack protection, M2M apps, 2 custom roles, 10 permissions, 10 feature flags, 5 custom properties, 1 webhook, 2 environments. No credit card required. When billing customers: 0.7% per transaction, MAU is free.
Pro — $25/month
Everything in Free plus BYO SMS provider, API keys, uncapped MAU/orgs/M2M tokens, unlimited webhooks/roles/permissions/feature flags/custom properties, Google Analytics integration, remove Kinde branding, SOC 2 attestation report. When billing customers: 0.7% per transaction, MAU is free.
Plus — $75/month
All features in Pro plus free enterprise SSO, 6% MAU discount, 0.1% transaction fee discount (0.6%), API permissions (scopes), organization-owned M2M apps, 6 environments, domain restrictions, workflow preview mode, Hotjar user analysis, early access. When billing customers: 0.6% per transaction, MAU is free.
Scale — $250/month
All features in Plus plus 13% MAU discount, 0.2% transaction fee discount (0.5%), 11 environments, custom domain per org, custom email sender per org, domain allowlist per org, auto-join per org, default roles per org, MFA per org, MFA exemptions and triggers, SCIM (coming soon), full ISO 27001 reports. When billing customers: 0.5% per transaction, MAU is free.
Start free — no credit card required. Monthly prices are indicative and vary based on actual usage.
Frequently asked questions
Is Kinde free to use?
Yes, Kinde has a Free plan that costs $0 forever and includes 10,500 monthly active users. No credit card is required to start.
How much does Kinde cost?
Kinde offers four plans: Free ($0/month), Pro ($25/month), Plus ($75/month), and Scale ($250/month). All plans include 10,500 free MAU. Transaction fees apply when you bill customers: 0.7% on Free/Pro, 0.6% on Plus, and 0.5% on Scale.
What authentication methods does Kinde support?
Kinde supports password auth, passwordless (email, SMS, one-click), social login, enterprise SSO (SAML, Entra ID), and multi-factor authentication (MFA). It also offers machine-to-machine (M2M) auth and connected apps.
Who is Kinde best for?
Kinde is best for developers and engineering teams building modern SaaS products. It is especially suited for startups and growing businesses that want to quickly add auth, billing, and user management from a single platform.
What are the main alternatives to Kinde?
Top alternatives include Auth0, Clerk, Supabase Auth, and Stytch. Kinde stands out by combining auth, billing, and feature management in one integrated platform with a generous free tier.
What is a key limitation of Kinde?
Kinde's free and entry plans cap custom roles and permissions (2 roles, 10 permissions on Free). Advanced enterprise features like SCIM provisioning and per-org custom domains are only available on the Scale plan.
