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.

Auth0 is an identity and access management (IAM) platform designed to simplify authentication and authorization for applications. It provides a flexible solution that allows developers to implement secure login systems without having to build them from the ground up. Auth0 supports various authentication methods, including username-password credentials, social logins (like Google, Facebook, and GitHub), enterprise identity providers (such as Active Directory and SAML-based systems), and passwordless options. The platform is highly adaptable, offering over 30 software development kits (SDKs) that cater to a wide range of languages and frameworks—JavaScript, Python, .NET, iOS, Android, and more. This makes integration straightforward regardless of the tech stack. Beyond basic authentication, Auth0 offers advanced features like multi-factor authentication (MFA), single sign-on (SSO), and fine-grained authorization. These tools enable organizations to enforce complex access control policies, supporting both role-based (RBAC) and attribute-based (ABAC) models. Auth0 also addresses enterprise needs through features like user provisioning, directory synchronization, and support for B2B, B2C, and B2E use cases. It’s designed with scalability in mind, making it suitable for both startups and large enterprises. The platform’s extensibility allows developers to customize authentication flows, implement rules for conditional access, and integrate third-party services. Since its acquisition by Okta, Auth0 operates as a product unit under the Okta umbrella, complementing Okta’s broader suite of identity solutions while maintaining a developer-first focus. This combination brings together Okta’s enterprise-grade security with Auth0’s developer-centric approach, offering a comprehensive solution for modern identity challenges.

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.

Kinde has a generous free plan with up to 10,500 MAU free of charge. Their Pro plan costs $25/month and the price for each additional MAU over 10,500 is $0.0175.

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.

Formerly known as NextAuth. It's is an open-source authentication library originally built for NextJS. Auth.js is free to use and comes with over 80 integrations for various third-party identity providers such as Google, Facebook, Auth0, Apple etc. You can use it with your own database if you choose to. It works with MySQL, Postgres, MSSQL and MongoDB. Auth.js is compatible with Next.js, SvelteKit and SolidStart as of March 2024.

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.

GoPasswordless is an authentication service and SDK that focuses on enabling passwordless authentication flows in web apps.

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

Podcast Clip Maker is your all-in-one solution for enhancing your podcast's online presence. Our AI-powered tool transforms your audio content into engaging video clips effortlessly. With Podcast Clip Maker, you can quickly create shareable snippets that capture the essence of your episodes, helping your podcast reach new audiences across various platforms. Say goodbye to time-consuming editing and hello to a streamlined process that lets you focus on what matters most – creating great content for your listeners. Boost your podcast's reach and popularity with Recast Studio’s Podcast Clip Maker. Our easy-to-use AI tool helps you create eye-catching clips and teasers from your episodes. These short videos can be shared across social media, attracting new listeners and keeping your current audience excited for more. Whether you want to grow your fanbase, promote upcoming episodes, or make your content more shareable, Recast Studio simplifies the process. Turn your podcast into must-see content with just a few clicks. Features: - Automatic captions - Design your own templates - Autoreframe - Remove filler words and pauses in one click - Create clips in multiple formats for all social media platforms

Our HubSpot LinkedIn extension will help you to import contacts, sync conversations & invitations with just one click—right from LinkedIn or Sales Navigator. Key Features - Add LinkedIn contacts to HubSpot in 1-click: Quickly capture LinkedIn contacts and import them directly into HubSpot with just one click, saving time and effort. - Enrich contacts with emails & phone numbers: Automatically enhance your contact profiles by adding verified email addresses and phone numbers, providing your sales team with valuable, actionable data. - Sync LinkedIn conversations to HubSpot: Keep your LinkedIn message history seamlessly synced with HubSpot, ensuring all communication is tracked and accessible in one place. - Works with LinkedIn and LinkedIn Sales Navigator: Compatible with both LinkedIn and LinkedIn Sales Navigator, making it flexible for all levels of LinkedIn prospecting. - Sync LinkedIn invitations to HubSpot: Track your LinkedIn invitations and manage your outreach in HubSpot, making it easy to follow up with new connections. - No obsolete information or undeliverable emails: Ensure the quality of your data with accurate, up-to-date contact information that minimizes bounces and enhances deliverability. Benefits - Save time on manual data entry: Automatically sync contacts and conversations to HubSpot, freeing up more time for high-value activities. - Improve sales productivity: With enriched contact information at their fingertips, your team can engage leads more effectively and close deals faster. - Boost outreach consistency: Keep track of all LinkedIn messages and invitations in HubSpot, ensuring every lead gets timely and consistent follow-ups. - Eliminate outdated or inaccurate data: Say goodbye to obsolete contact information, helping you avoid undeliverable emails and maximize engagement. - Leverage LinkedIn insights: Bring LinkedIn’s powerful networking data into HubSpot to deepen connections and personalize outreach.

PostPuma is a social media management platform powered by AI, designed to streamline and enhance how businesses maintain their online presence. From effortlessly scheduling posts to delivering AI-driven recommendations that optimize content and analyze performance, PostPuma equips users with the tools they need to manage social media effectively and efficiently. Ideal for small to medium-sized businesses, marketing teams, and content creators, it’s a solution tailored to save time, boost organization, and grow audiences. The platform’s standout features include a centralized content scheduler that lets users plan posts across multiple social media platforms from one intuitive dashboard. AI-driven content optimization offers tailored suggestions to refine tone, style, and content ideas for maximum audience appeal. Meanwhile, performance analytics provide actionable insights into audience behavior, enabling users to fine-tune strategies for better results. For teams, PostPuma supports smooth collaboration with role assignments and built-in approval workflows. Additionally, multi-platform integration ensures every account is seamlessly managed in one place. The benefits of PostPuma are clear: automate time-consuming tasks, maintain consistent posting schedules to enhance engagement, and make data-driven decisions with easy-to-read analytics. The platform’s user-friendly design ensures accessibility for beginners while offering advanced tools for experienced marketers. Teams especially benefit from streamlined collaboration, avoiding the confusion of disjointed workflows. Getting started is straightforward—connect your social media accounts to PostPuma, and the platform’s AI tools take it from there. You can generate or refine posts, schedule them to align with peak engagement times, and monitor their performance using the analytics dashboard. Teams can collaborate effortlessly, ensuring a unified approach to content creation and publishing.

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CopyTruck is an advanced AI tool designed to organically enhance your LinkedIn influence by generating content that resonates deeply with your audience.

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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!

Foundy.com is the first AI-enabled platform specialising in long-term exit planning and successful M&A deal execution. Whether you're preparing for an exit within 1 to 36 months or exploring buy-side acquisition opportunities, Foundy offers an AI-powered SaaS platform combined with expert advisors who specialise in your company’s industry niche. We provide a comprehensive toolkit, including buyer and deal flow sourcing, templates and access to a thriving community of exited founders and buyers, all designed to maximise shareholder value and ensure a successful transaction. Foundy also has a generous referral programme for those who connect us with buyers or sellers.