AltCatalog

Alternatives to Back4app

Managed backend built on Parse Server with a MongoDB database, auto APIs, auth, and cloud

Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

#6 of 10 in Backend-as-a-service

Back4app ranks #6 of 10 in Backend-as-a-service, with an Alt Score of 81. It is freemium from $15/mo and available on Web, iOS and Android. 12 of 12 checklist rows are verified against a public source.

Back4app is a backend-as-a-service platform built on top of the open-source Parse Server framework, offering a managed MongoDB (and NoSQL) database, auto-generated REST/GraphQL APIs, built-in authentication, file storage, cloud functions, and live queries for realtime updates. It targets startups, mobile app developers, and low-code builders who want Firebase-style speed with an open-source, self-hostable core. It differentiates itself with predictable flat pricing and multi-cloud/self-hosting options via Parse Server.

Most compared with SupabaseAppwriteAWS Amplify
Official site Suggest an edit Data history Work on Back4app? Claim this page
Who it's for

Developers building web and mobile app backends who want a managed Parse Server platform instead of running their own infrastructure, ranging from solo developers prototyping on the free tier to teams needing dedicated production resources.

What you get

A managed MongoDB-backed database with auto-generated REST and GraphQL APIs, built-in user authentication with social login, file storage, Cloud Code serverless functions, real-time LiveQuery subscriptions, and a dashboard for managing data, users, and ACL/Class-Level-Permission security settings.

How it works

Developers create an app in the Back4app dashboard, obtain app keys, and connect using a Parse SDK (JavaScript, React Native, Flutter, iOS, Android) or the REST/GraphQL APIs; data is modeled as Parse.Object classes, business logic runs as Cloud Code functions, and Back4app hosts, scales, and secures the underlying Parse Server infrastructure.

Why people leave Back4app

Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.

Sign in to add a reason — new reasons go through moderation before appearing.

Ranked alternatives

Ordered by Alt Score. Click any score to see the breakdown.

Sponsored Paid slot. Never affects the ranked order below. Promote here →
01

Supabase is an open-source backend-as-a-service built on PostgreSQL, providing a managed database, authentication, file storage, realtime subscriptions, edge functions, auto-generated APIs, and vector.

Apache License 2.0 Web
Alt Score

Alt Score · 100

How this alternative ranks. How it works →

Verified coverage 90%100
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

02

Appwrite is an open-source backend-as-a-service that bundles a database, authentication, file storage, realtime, serverless functions, and messaging behind REST/GraphQL APIs and client SDKs, available.

BSD-3-Clause WindowsmacOSLinuxWeb
Alt Score

Alt Score · 96

How this alternative ranks. How it works →

Verified coverage 90%96
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

03

AWS Amplify is Amazon's backend-as-a-service toolkit for web and mobile apps, providing managed authentication (Cognito), auto-generated GraphQL/REST APIs (AppSync), a database (DynamoDB), file storag.

Apache-2.0 WebiOSAndroid
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

04

Convex is a reactive backend-as-a-service where the database, server functions, and realtime subscriptions are written in TypeScript, giving apps live-updating queries, transactional writes, file stor.

FSL-1.1-Apache-2.0 WebLinux
Alt Score

Alt Score · 89

How this alternative ranks. How it works →

Verified coverage 90%88
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

05

InstantDB is an open-source backend-as-a-service focused on realtime, relational client-side queries: every query is multiplayer by default, with built-in authentication (magic codes, OAuth, guest aut.

Apache-2.0 WebiOSAndroid
Alt Score

Alt Score · 85

How this alternative ranks. How it works →

Verified coverage 90%83
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

06

Firebase is Google's app-development platform offering a backend-as-a-service: the Firestore and Realtime Database, Authentication, Cloud Storage, Cloud Functions, hosting, and client SDKs for web, iO.

Proprietary WebiOSAndroid
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

07

Parse Platform (Parse Server) is a fully open-source Node.js backend-as-a-service framework, originally built by Parse Inc.

Apache-2.0 iOSmacOSAndroidWeb +1
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

08

Xano is a no-code/visual backend-as-a-service platform that gives teams a managed Postgres database, auto-generated and customizable REST/Swagger APIs, built-in authentication, file storage, and a vis.

Proprietary
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

09

PocketBase is an open-source backend-as-a-service packaged as a single Go executable, bundling an embedded SQLite database, authentication, file storage, realtime subscriptions, and an admin dashboard.

MIT License LinuxWindowsmacOSWeb
Alt Score

Alt Score · 78

How this alternative ranks. How it works →

Verified coverage 90%75
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Feature comparison

Rows come from the Backend-as-a-service checklist (16 rows). Human-verified cells only. ? means the value has not been verified.

Comparing Back4app Supabase × Appwrite × AWS Amplify × Convex × InstantDB ×
+ Add app
Firebase Parse Platform PocketBase Xano
Backend-as-a-service checklist Back4appSupabaseAppwriteAWS AmplifyConvexInstantDB
Pricing model
Starts at
License
Platforms
Managed database
Auth built in
File / object storage
Realtime subscriptions
Serverless / edge functions
Auto-generated APIs
Self-hostable
Open source
Client SDKs
Row-level security
Vector / AI support
Free tier
verified pending unknown (?) Click any cell to view its source or propose a value
Sources & verification 16

Every fact and feature listed for Back4app is verified against its own pages. Each alternative is sourced on its own page.

  • Starts at $15/mo verified 2026-07-30

    MVP plan, cheapest paid tier (500K Requests/1GB DB/50GB Files). $15 figure is shown alongside a 'Save 40% / Billed Annually' badge, so it may be a discounted annual rate rather than a flat monthly pri

    $15 Per App / Month Save 40% Billed Annually
    https://www.back4app.com/pricing/backend-as-a-service
  • Platforms Web, iOS, Android verified 2026-07-30

    Page lists JavaScript (web/Node.js), React Native, Flutter, Android, iOS, and Xamarin SDK installs.

    Based on the platform you're working with, follow one of the installation methods below:
    https://www.back4app.com/docs/get-started/parse-sdk
  • Pricing model Freemium verified 2026-07-30

    Same page also lists paid per-app plans: MVP $15/mo, Pay As You Go $80/mo, Dedicated $400/mo.

    Start for Free — Perfect for developing, learning and prototyping
    https://www.back4app.com/pricing/backend-as-a-service
  • Status active verified 2026-07-30

    Release notes entry is headed 'Release Notes (Oct '25)'.

    the Parse Server 7.5.2 on Back4App, bringing major improvements to app performance, security, and the developer experience
    https://www.back4app.com/docs/release-notes
  • Managed database Yes verified 2026-07-30
    Data storage on Back4app revolves around the Parse.Object class, which allows you to store key-value pairs of JSON-compatible data, providing flexibility and simplicity in data management.
    https://www.back4app.com/docs/get-started/read-and-write-data
  • Auth built in Yes verified 2026-07-30
    Secure your applications with a complete authentication framework that supports email/password, OAuth, and social login methods. Manage users, sessions, and roles effortlessly.
    https://www.back4app.com/llms.txt
  • File / object storage Yes verified 2026-07-30
    Back4app storage is built upon Parse.File and lets you store any files such as documents, images, videos, music, and any other binary data.
    https://www.back4app.com/docs/react-native/parse-sdk/working-with-files/react-native-save-file
  • Realtime subscriptions Yes verified 2026-07-30
    LiveQuery solves this problem. This tool allows you to subscribe to a Parse.Query you are interested in. Once subscribed, the server will notify clients whenever a Parse.Object that matches the Parse.
    https://www.back4app.com/docs/platform/parse-live-query
  • Serverless / edge functions Yes verified 2026-07-30
    Cloud Code is a powerful tool that enables you to execute JavaScript functions directly on the server, adding advanced features to your application without the need to manage your own servers. Running
    https://www.back4app.com/docs/get-started/cloud-functions
  • Auto-generated APIs Yes verified 2026-07-30
    Connect your data to your frontend effortlessly with auto-generated REST and GraphQL APIs. Every data model you create is instantly available for querying and mutation.
    https://www.back4app.com/llms.txt
  • Self-hostable Partial verified 2026-07-30

    Back4app the hosted service itself is cloud-only (not self-hosted); this quote describes migrating away to self-host the underlying open-source Parse Server elsewhere, not running Back4app on your own

    Yes, Back4app is built on open-source Parse Server, so you can export your data and self-host anytime. There's no vendor lock-in. Your data is always portable and you maintain full ownership.
    https://www.back4app.com/backend-as-a-service-baas/features
  • Open source No verified 2026-07-30

    Phrasing is 'built on' open-source technologies, not that Back4app itself is open source; it is a commercial hosted product with paid plans.

    Back4app is built on proven open-source technologies, offering a highly flexible, transparent, and customizable architecture.
    https://www.back4app.com/llms.txt
  • Client SDKs Yes verified 2026-07-30

    Lists JavaScript, React Native, Flutter, Android, and iOS SDK install steps.

    Based on the platform you're working with, follow one of the installation methods below:
    https://www.back4app.com/docs/get-started/parse-sdk
  • Row-level security Yes verified 2026-07-30
    ACLs - (access control list). ACLs are basically just rules you set when you create an object. Let's say you create a to-do item, at the time of creation you can say who the item can be read by, and w
    https://www.back4app.com/docs/security/parse-security
  • Vector / AI support No verified 2026-07-30

    This is the full extent of Back4app's documented AI capability (a natural-language dev/MCP assistant); no vector database, embeddings, or similarity-search feature appears in this feature list, the fe

    Back4app connects seamlessly with AI-enabled IDEs such as Cursor, Visual Studio Code, and Windsurf, allowing intelligent agents to create, modify, and deploy backend resources through natural language
    https://www.back4app.com/llms.txt
  • Free tier Yes verified 2026-07-30

    Free tier includes 25K Requests, 250MB Database, 1GB Transfer, 1GB Files, no credit card required.

    Start for Free — Perfect for developing, learning and prototyping
    https://www.back4app.com/pricing/backend-as-a-service

FAQ

Yes. Convex, InstantDB and Firebase have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.

Supabase, Appwrite and AWS Amplify — every license claim links its source.