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Apps with User authentication

11 apps

Top User authentication apps ranked by the community

  1. Base44

    Base44 is an AI app builder, acquired by Wix in 2025, that turns plain-language descriptions into working web apps. Generated apps include a built-in database, user authentication, file storage, integrations such as email and payments, and one-click hosting with custom domains, so non-developers can ship internal tools, portals or MVPs without managing infrastructure. A free plan with limited credits is available.

    10 Base44 alternatives

    Pros

    • Turns a plain-language description into a working web app
    • Database, authentication and hosting included out of the box
    • Lets non-developers ship internal tools without managing servers

    Cons

    • The free plan's limited credits run out quickly when iterating
    • Apps depend on Base44's backend and hosting, which limits portability
    • Getting the right result often takes several rounds of prompting
    Cost / License
    FreemiumProprietary
    Categories
    AI App Builders
    Platforms
    Web
    Features
    Autonomous coding agentBuilt-in databaseCustom domainsIntegrationsOne-click deployUser authentication
    Visit websiteMore about Base44

  2. FlutterFlow

    FlutterFlow is a low-code builder for mobile, web and desktop apps based on Google's Flutter framework. You design screens visually, connect Firebase, Supabase or REST APIs, add logic and authentication, then export the Flutter code or deploy straight to app stores and the web. It targets developers and technical founders who want speed without losing access to the code, and includes AI page generation.

    8 FlutterFlow alternatives

    Pros

    • Exports Flutter code you can keep developing on your own
    • Builds mobile, web and desktop apps from one project
    • Ready-made Firebase and Supabase integrations

    Cons

    • Code export and some deployment options require paid plans
    • Assumes more technical knowledge than typical no-code tools
    • Complex custom logic can be awkward to build visually
    Cost / License
    FreemiumProprietary
    Categories
    AI App Builders
    Platforms
    WebWindowsMac
    Features
    Code exportIntegrationsOne-click deployUser authenticationVisual editor
    Visit websiteMore about FlutterFlow

  3. Softr

    Softr lets businesses build client portals, internal tools, directories and simple CRMs without code. Apps are put together from blocks in a visual editor on top of data from Airtable, Google Sheets, SQL databases, HubSpot or Softr's own databases, with user logins, permissions by user group and workflows. AI can generate a first version of an app from a prompt. A free plan is available.

    9 Softr alternatives

    Pros

    • Quick way to build client portals on Airtable or Google Sheets
    • User groups and permissions without writing code
    • Block-based editor that non-technical teams pick up fast

    Cons

    • Layout flexibility is limited by the block system
    • More users and advanced features require paid plans
    • Performance depends on the connected data source
    Cost / License
    FreemiumProprietary
    Categories
    AI App Builders
    Platforms
    Web
    Features
    Built-in databaseCustom domainsIntegrationsTemplatesUser authenticationVisual editor
    Visit websiteMore about Softr

  4. AWS Amplify

    AWS Amplify is a set of tools and services from Amazon Web Services for building full-stack web and mobile apps. Amplify Hosting deploys frontends from Git with pull request previews and custom domains, while the backend side sets up authentication, data, storage and functions on AWS services, defined in TypeScript code. Its open source client libraries cover JavaScript, React Native, Swift, Android and Flutter.

    12 AWS Amplify alternatives

    Pros

    • Git-based hosting with pull request previews and custom domains
    • Sets up auth, data, storage and functions on AWS from TypeScript code
    • Client libraries for JavaScript, React Native, Swift, Android and Flutter

    Cons

    • Ties your backend closely to AWS services
    • Debugging often means digging into the underlying AWS consoles
    • Usage-based AWS billing can be hard to predict
    Cost / License
    FreemiumProprietary
    Categories
    Hosting & DeploymentBackend as a Service
    Platforms
    Web
    Features
    Built-in databaseCustom domainsFile storageGit integrationPreview deploymentsServerless functions
    Visit websiteMore about AWS Amplify

  5. Firebase

    Firebase is Google's platform for building web and mobile apps without running your own servers. It provides Cloud Firestore and the Realtime Database, authentication, Cloud Storage, Cloud Functions, hosting, analytics, crash reporting and push messaging, with SDKs for iOS, Android, web, Flutter and Unity, plus Gemini-based AI features. A free Spark plan suits prototypes, with usage-based billing beyond it.

    8 Firebase alternatives

    Pros

    • Complete toolkit from auth and databases to hosting and crash reports
    • Mature SDKs for iOS, Android, web, Flutter and Unity
    • The free Spark plan is enough for prototypes

    Cons

    • Usage-based billing can spike unexpectedly with traffic or inefficient queries
    • Firestore’s NoSQL model makes complex queries and reporting awkward
    • Strong lock-in to Google Cloud services
    Cost / License
    FreemiumProprietary
    Categories
    Backend as a ServiceHosting & Deployment
    Platforms
    Web
    Features
    AnalyticsFile storageRealtime databaseServerless functionsUser authentication
    Visit websiteMore about Firebase

  6. Supabase

    111.4Kstars

    Supabase is an open source backend platform built on Postgres. Each project gets a full Postgres database with auto-generated REST and GraphQL APIs, authentication, file storage, realtime subscriptions, edge functions and vector support for AI applications. It can be used as a hosted service with a free tier or self-hosted with Docker, and appeals to developers who want SQL rather than a NoSQL backend.

    8 Supabase alternatives

    Pros

    • Full Postgres database with SQL, extensions and row-level security
    • Auto-generated APIs, auth, storage and realtime in one platform
    • Open source and self-hostable with Docker

    Cons

    • Free-tier projects are paused after a period of inactivity
    • Self-hosting is more involved to set up than the managed service
    • Row-level security policies take time to get right
    Cost / License
    FreemiumOpen source
    Categories
    Backend as a Service
    Platforms
    WebSelf-hosted
    Features
    API accessBuilt-in databaseFile storageRealtime databaseServerless functionsUser authentication
    Visit websiteMore about Supabase

  7. Appwrite

    57.6Kstars

    Appwrite is an open source backend server that bundles authentication, databases, file storage, serverless functions, messaging and realtime events behind one consistent API, with SDKs for web, mobile and Flutter. Since 2025 it also hosts websites and web apps through Appwrite Sites. It can be self-hosted with Docker or used through Appwrite Cloud, which has a free plan.

    8 Appwrite alternatives

    Pros

    • Auth, database, storage, functions and messaging behind one API
    • Open source and straightforward to self-host with Docker
    • SDKs for web, mobile and Flutter apps

    Cons

    • Database queries are more limited than raw SQL
    • Self-hosted upgrades between versions can require careful migrations
    Cost / License
    FreemiumOpen source
    Categories
    Backend as a ServiceHosting & Deployment
    Platforms
    WebSelf-hosted
    Features
    Built-in databaseFile storageRealtime databaseServerless functionsUser authentication
    Visit websiteMore about Appwrite

  8. PocketBase

    61.4Kstars

    PocketBase is an open source backend that ships as a single Go executable with an embedded SQLite database. It provides realtime subscriptions, user authentication including OAuth2, file storage and an admin dashboard, and can be extended in Go or JavaScript. It suits small projects and prototypes that need a backend running in minutes. It has not reached version 1.0, so breaking changes can still happen.

    7 PocketBase alternatives

    Pros

    • The whole backend ships as one executable that runs in minutes
    • Embedded SQLite with realtime, auth and an admin dashboard
    • Can be extended in Go or JavaScript

    Cons

    • Not yet at version 1.0, so breaking changes can still happen
    • Single-server SQLite design limits horizontal scaling
    • No official managed hosting, so you run and back up the server yourself
    Cost / License
    FreeOpen source
    Categories
    Backend as a Service
    Platforms
    Self-hosted
    Features
    API accessBuilt-in databaseFile storageRealtime databaseUser authentication
    Visit websiteMore about PocketBase

  9. Convex

    12.7Kstars

    Convex is a backend platform for app developers in which the database schema, queries, mutations and server functions are all written in TypeScript. Queries are reactive, so connected clients update automatically when data changes, with no manual caching. It also includes file storage, scheduled jobs, search and authentication. Convex Cloud has a free tier, and the backend can be self-hosted under the FSL license.

    8 Convex alternatives

    Pros

    • Schema, queries and functions are all written in TypeScript
    • Reactive queries update clients automatically, with no caching code
    • Scheduled jobs, search, file storage and auth included

    Cons

    • Its own data model differs from SQL, which makes migrating away harder
    • The FSL license is source available, not open source
    • TypeScript-centric, less suited to teams using other backend languages
    Cost / License
    FreemiumSource available
    Categories
    Backend as a Service
    Platforms
    WebSelf-hosted
    Features
    Built-in databaseFile storageRealtime databaseServerless functionsUser authentication
    Visit websiteMore about Convex

  10. Nhost

    9.4Kstars

    Nhost is an open source backend platform that combines a dedicated Postgres database, an instant GraphQL API powered by Hasura with realtime subscriptions, authentication, file storage and serverless functions. It also offers AI tooling such as vector embeddings. Projects run on Nhost Cloud, which has a free starter plan, or can be self-hosted, and a CLI supports local development.

    8 Nhost alternatives

    Pros

    • Dedicated Postgres database for each project
    • Instant GraphQL API with realtime subscriptions through Hasura
    • Open source, with a CLI for local development and self-hosting

    Cons

    • GraphQL-first approach adds a learning curve for REST-oriented teams
    • Smaller community and ecosystem than Supabase or Firebase
    Cost / License
    FreemiumOpen source
    Categories
    Backend as a Service
    Platforms
    WebSelf-hosted
    Features
    API accessBuilt-in databaseFile storageRealtime databaseServerless functionsUser authentication
    Visit websiteMore about Nhost

  11. Back4app

    Back4app is a backend-as-a-service platform built on the open source Parse Server. It provides a database with auto-generated REST and GraphQL APIs, user authentication, file storage, Cloud Code functions and live queries, managed from a spreadsheet-like dashboard. The company also offers a container-based web deployment platform and an AI agent for building cloud backends. Free plans are available for prototyping.

    8 Back4app alternatives

    Pros

    • Built on open source Parse Server, which limits lock-in
    • Auto-generated REST and GraphQL APIs for your data
    • Spreadsheet-like dashboard is approachable for beginners

    Cons

    • The Parse ecosystem is less active than newer backend platforms
    • Free plans are meant for prototypes; production needs a paid plan
    Cost / License
    FreemiumProprietary
    Categories
    Backend as a ServiceHosting & Deployment
    Platforms
    Web
    Features
    API accessBuilt-in databaseFile storageRealtime databaseServerless functionsUser authentication
    Visit websiteMore about Back4app