The biggest advantage of Cognito is that it's a part of the AWS ecosystem and integrates well with other AWS services. The free tier comes with 50,000 MAUs and the price for each additional MAU starts at $0.0055/month and goes down to as low as $0.0025/month as you scale to tens of millions of users. It integrated with four federated identity providers - your users can sign up with Facebook, Google, Apple and Amazon.

Google's Firebase is an entire app development platform that's packed with features.It comes with storage, cloud functions, monitoring and, of course, user authentication. The free tier comes with 50,000 MAUs. Beyond that pricing start at $0.0055/MAU and goes down to as low as $0.0025/MAU as you scale to millions of users. Firebase authentication supports email and password auth, phone auth, magic links, two-factor authentication and social identity providers - mainly Google, Google Play Games, Facebook, Apple, Microsoft, Twitter, GitHub and OAuth access tokens.

Clerk is a comprehensive user management and authentication platform designed to streamline how developers handle user accounts within web and mobile applications. It offers a suite of embeddable UI components—such as <SignIn/>, <SignUp/>, <UserButton/>, and <UserProfile/>—that integrate seamlessly into your application without redirecting users off-site. These components are fully customizable to match your brand, making the user experience cohesive and frictionless. Under the hood, Clerk provides a robust API and SDKs compatible with modern frameworks like Next.js, Remix, React, and Expo. It handles the entire authentication lifecycle, supporting multifactor authentication (MFA), session management, passwordless sign-in (via magic links or one-time passcodes), and traditional password-based methods with breach detection. The platform also integrates social sign-on (SSO) with over 20 providers, enabling quick user onboarding while adhering to security best practices. Clerk’s security posture includes SOC 2 Type 2 certification and CCPA compliance, with continuous third-party audits and penetration testing. Fraud prevention measures, like disposable email blocking and bot detection powered by machine learning, are built-in to reduce spam and abusive sign-ups. For B2B SaaS applications, Clerk provides advanced multi-tenancy features, enabling organization-based user management with custom roles, permissions, auto-join functionality based on email domains, and invitation systems—all accessible through both code and an admin dashboard. Developers benefit from rapid integration, significantly reducing the time spent on building authentication systems from scratch. Clerk acts as the single source of truth for user data and integrates seamlessly with popular backend services like Supabase, Firebase, and Convex. With free access for up to 10,000 monthly active users, it’s positioned as a scalable solution that grows with your application’s needs.

Supabase is the open-source alternative to Firebase. Like Firebase, it's a complete app development platform with user authentication, cloud functions, APIs, Postgres database, storage, vector embeddings, and other features. Supabase projects come with PostgreSQL's policy engine for fine-grained user access rules. It has social login integrations with Google, Facebook, GitHub, Azure (Microsoft), Gitlab, Twitter, Discord, and many more. They offer a customizable authentication component for React. Phone login and MFA can be added through third-party SMS providers such as Twilio or Bird. The free tier comes with 50,000 monthly active users. The Pro plan, at $25/month, comes with 100,000 MAUs and $0.00325/MAU beyond that.

Stytch provides a suite of tools designed to simplify authentication, authorization, and security for web and mobile applications. If you're developing an app and need a way for users to log in—whether with passwords, passkeys, or entirely passwordless methods—Stytch offers APIs and SDKs that handle these complexities. Their focus is on making authentication seamless for both developers and end-users while ensuring high security standards. For businesses, particularly B2B SaaS companies, Stytch enables advanced features like multi-tenancy, role-based access control (RBAC), and single sign-on (SSO). They provide an embeddable admin portal, allowing enterprise customers to manage their own authentication configurations, organizational settings, and integrations with identity providers—without constant developer involvement. Stytch places a strong emphasis on scalability and flexibility. Their tools are designed to “just work” across a range of use cases, from simple consumer apps to complex enterprise platforms. Developers can choose how much of the authentication flow they want to control—using pre-built UI components for quick implementation or leveraging headless SDKs and backend APIs for a fully customized experience. Security and fraud prevention are also core to Stytch’s offering. They provide real-time bot detection, device-aware multi-factor authentication, and intelligent rate limiting to protect against credential stuffing and other forms of account abuse. Their infrastructure ensures that login codes and authentication requests are delivered reliably, even when SMS or email providers fail. Stytch supports a broad range of programming languages and frameworks, including Python, Node.js, Java, React, and iOS, making integration into existing tech stacks straightforward. Their platform is designed for developers who want to build secure, user-friendly authentication systems without reinventing the wheel.

Ory is an API-first identity manager. They offer authentication, analytics, access control, machine-to-machine authentication and more. They have SDKs for the major languages: - Dart - .NET - Elixir - Go - Java - JavaScript - PHP - Python - Ruby - Rust Unfortunately, they don't offer a free tier. Pricing starts at $29/month and includes 1,000 daily active users. Then it's $30 / 1,000 additional DAUs.

Appwrite is an open-source platform for building scalable applications. It comes with authentication, databases, storage, and functions. It's basically a complete development platform. They have an extremely generous free plan with 75,000 MAUs free of charge and their Pro plan is only $15/month. Appwrite offers email and password login, phone auth, magic links, email OTP, anonymous login, JWT login, SSR login, custom tokens, and two-factor authentication.

Gluu offers various authentication solutions based on open-source software. There is a self-hosted solution, a managed solution, and a free fully open-source solution based on the Linux Foundation Janssen Project.

Authenticate customers with WhatsApp, SMS, Email, Biometrics, and more, with a 98% conversion rate on signup and sign-in.

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Truelist is a subscription-based email verification platform that provides unlimited email validation for sales and marketing lists. It’s tailored for sales and marketing professionals as well as developers, offering one-click integrations with popular platforms to simplify list imports. With no need to purchase credits, teams can validate lists affordably and efficiently. Additionally, Truelist offers free single email validation, making it versatile for both bulk and individual verifications. By keeping lists clean, it boosts engagement and strengthens sender reputation, essential for effective email outreach.

SaaSCurate is a community-driven platform where SaaS founders launch and grow their products. Key Features - List Your Product: Feature it on the platform to get in front of an active community of SaaS enthusiasts. - Newsletter Spotlight: Get your product highlighted in our weekly newsletter, reaching all community members. - Community Notifications: Launching on Product Hunt? Announce it to the whole community! - Social Proof: Earn badges and endorsements to build credibility and attract more users. - SEO Boost: Secure a valuable dofollow backlink to strengthen your SEO. Benefits - Maximize Visibility: Build buzz and get new people using your product. - Increase Credibility: Attract customers and gain credibility with endorsements and badges. - SEO Boost: Secure dofollow backlinks that improve your search rankings and drive organic traffic to your site. - Community Engagement: Launch announcements and newsletter features keep your product top-of-mind as you grow. Use Case - First-Time Launching: Kickstart your product’s journey with instant visibility and social proof from a community eager to discover new tools. - Growing an Existing Product: Boost ongoing engagement by featuring updates in newsletters and gaining SEO-friendly backlinks to attract fresh users. - Launching on Other Platforms: Amplify your reach by notifying the SaaS community about launches on Product Hunt or AppSumo, driving more traffic and engagement.

Brackets.app revolutionizes tournament management, allowing anyone to generate and customize tournament brackets with ease. Effortlessly invite players and manage the entire event online, from initial setup to the final match. The app simplifies score entry and automatically calculates and updates leaderboards and standings in real-time, ensuring everyone stays informed. Its intuitive interface is designed for both casual and professional organizers, providing a smooth, user-friendly experience. Brackets.app is the perfect tool for any competition, combining convenience and efficiency to simplify your tournament organization needs. Say goodbye to manual bracket management and embrace the future with Brackets.app

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Plotzy is a robust software platform purpose-built for the commercial real estate industry, delivering the tools professionals need to make informed decisions faster. Key Features: Find property info from county tax assessors Find owner contact information Zoning questions answered, instantly & accurately Search for properties by permitted use by right & conditionally Organize your lists Export your data By aggregating diverse property data from multiple sources, Plotzy offers a comprehensive view of the real estate landscape, including detailed insights into owner contact information, zoning laws, and municipal resources.

Move is the simple, no-nonsense way to organize and share your events, keep your calendars in check, and connect with groups – all in one place. Whether you're planning a casual meetup, a big conference, or just trying to keep your work and social life organized, Move has you covered. It’s easy to use and works for anyone, from everyday users looking to stay on top of things to group leaders organizing events. Say goodbye to confusing tools and hello to simplicity with Move. Key Features - Events & Ticketing: Create and manage events with ease, whether it’s a small gathering or a large-scale event. Attendees can register via SMS or email, save their tickets to their phone, and check-in without any hassle. - Payments Made Easy: Accept payments from all over the world with the latest payment methods, making event sales smooth and simple. - Custom Calendars: Manage your life with personalized calendars for work, social, or personal events. Easily add your Move events, customize how they look, and choose who can see them. - Groups: Create private or public groups for friends, family, or colleagues. Share events, files, and posts with your group, and even set up paid memberships if needed. - Mobile-Friendly: Attendees can access tickets on their phones and check in with ease. Stay connected and organized no matter where you are. - Real-Time Notifications: Send out event updates or group announcements through SMS or email, keeping everyone in the loop without the chaos of text chains or email threads.

Tired of manually creating each certificate and wasting hours on repetitive tasks? Certifast is here to simplify your life! Designed for anyone who needs to generate certificates quickly and efficiently, Certifast is your go-to solution. Here's what makes Certifast stand out: - Bulk Creation in Seconds: Generate thousands of certificates at once, saving you time and effort. - Easy Customization: Personalize each certificate with names, grades, or unique numbers effortlessly. - User-Friendly Interface: No design skills needed—navigate through Certifast with ease and choose from a variety of templates. - High-Quality Results: Every certificate is produced in high resolution, perfect for printing or digital use. - Seamless Data Integration: Import data from CSV files to automatically fill in certificate details and reduce errors. - Versatile Application: Ideal for schools, businesses, events, and more, Certifast adapts to any setting where certificates are needed. Certifast is more than just a certificate maker—it's a time-saving tool designed to enhance your productivity. Say goodbye to manual certificate creation and hello to the simplicity of Certifast. Try Certifast today with our free trial and see how easy certificate creation can be!

Uneed is a platform where people can both discover new products and promote their own. It works a bit like Product Hunt, giving creators a way to get their products noticed. Every day at midnight PST, between 10 and 20 new products launch on the homepage. On launch day, products get prime visibility, but users can keep voting for them anytime afterward. Products are ranked daily, weekly, monthly, and yearly. The top three products in each ranking get badges—gold, silver, or bronze—displayed on their product pages. Popular products also get featured in Uneed’s weekly newsletter, which reaches over 9,100 subscribers. If you want to launch a product, you make an account and fill out the details. There are two ways to get your product live: wait in a free queue (and get assigned a random launch date) or pay $30 to skip the line and pick your date. Success comes from a strong launch day, keeping your page up-to-date, and encouraging people to vote. Adding special deals can also earn you a badge and keep interest alive. The community side of Uneed is built around upvoting products. The more you vote, the more power you gain. For example, a 5-day voting streak doubles your vote’s power, and a 100-day streak triples it while unlocking an avatar border. At 150 days, you get a free line skip; at 500 days, you get discounts on advertising; and at 1,000 days, your votes count as five. The platform covers categories like development, design, marketing, business, and personal life products. It’s just one person running Uneed, and you’re encouraged to vote for your own product. If you have questions, they’re easy to reach via email. In short, Uneed is a straightforward way to launch a product, gather feedback, and build an audience—without needing a massive following upfront.

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Schedles is an all-in-one social media management platform designed specifically for content creators looking to amplify their online presence. Packed with cutting-edge features such as advanced post scheduling, AI-driven content generation, and seamless cross-platform publishing to Threads, Instagram, TikTok, and LinkedIn, Schedles simplifies your workflow, freeing you up to focus on what you do best—creating captivating content. Our user-friendly interface allows you to effortlessly plan and manage your content calendar, ensuring that you never miss an opportunity to engage your audience. With our AI-powered tools, you can quickly generate innovative ideas and optimize your posts for maximum visibility and interaction, helping you achieve significant growth across all your social media channels. Whether you're a solo creator or part of a collaborative team, Schedles is engineered to enhance your productivity and fine-tune your social media strategy, empowering you to connect with your audience more effectively. Begin your journey toward a more organized, impactful, and successful online presence with Schedles today!