Best Backend-as-a-Service Platforms for Modern Apps in 2026
Supabase gives you Postgres with realtime, Firebase dominates mobile. Eight BaaS platforms rated on auth, storage and scale.
MG Software builds on Supabase by default for its PostgreSQL foundation, Row Level Security and generous free plan. For mobile-first projects with offline sync we recommend Firebase. Teams that prefer GraphQL are pointed toward Nhost.
A Backend-as-a-Service platform can save weeks of development time by providing auth, database, storage and realtime functionality out of the box. The market has grown explosively in 2026: alongside Firebase, seven serious alternatives now each offer a different balance between flexibility, vendor lock-in and cost.
How did we select these tools?
Each platform was tested with an identical task management app (CRUD, auth, realtime updates, file uploads). We measured setup time, query performance at 10,000 records, auth flows (email, Google, GitHub), and costs when scaling from 100 to 10,000 monthly active users.
How do we evaluate these tools?
- Database type and query flexibility (SQL vs NoSQL)
- Authentication: social logins, MFA and Row Level Security
- Realtime functionality and WebSocket support
- File storage and CDN integration
- Self-hosting capability and data ownership
1. Supabase
Open-source Firebase alternative built on PostgreSQL. Offers auth, realtime subscriptions, edge functions and storage. The free plan includes 500MB database, 1GB storage and 50,000 monthly active users.
Pros
- +Full SQL power of PostgreSQL including joins and triggers
- +Row Level Security for fine-grained access control at the database level
- +Self-hosted option via Docker for complete data control
- +Generous free plan suitable for MVPs and side projects
Cons
- -Realtime performance slower than Firebase for high-frequency updates
- -Edge Functions run on Deno, not Node.js
- -Dashboard can feel sluggish with large datasets and many tables
2. Firebase
Google's BaaS platform with Firestore (NoSQL), Authentication, Cloud Functions and Hosting. Dominant in mobile development with native Android and iOS SDKs. Spark plan (free) offers 1GB Firestore storage.
Pros
- +Fastest time-to-market for mobile apps with native SDKs
- +Firestore realtime sync works flawlessly, including offline
- +Extensive ecosystem with Analytics, Crashlytics and Remote Config
- +Scales to millions of users without infrastructure management
Cons
- -NoSQL model makes complex queries and joins difficult
- -Strong vendor lock-in to Google Cloud Platform
- -Costs unpredictable with high read volume on Firestore
3. Appwrite
Open-source BaaS with databases, auth, functions, storage and messaging. Runs as a Docker container with SDKs for 10+ platforms. Cloud version available alongside self-hosting.
Pros
- +Fully open-source with no vendor lock-in
- +Broad SDK coverage: web, mobile, Flutter, server-side
- +Built-in messaging (push, email, SMS) in the platform
- +Simple self-hosted setup via a single Docker Compose file
Cons
- -Uses MariaDB under the hood, not native Postgres
- -Smaller ecosystem and fewer community resources than Firebase
- -Cloud version still relatively new with limited region selection
4. PocketBase
Ultralight BaaS in a single 15MB Go binary. Includes SQLite database, auth, realtime and file storage. Ideal for prototypes and small-scale projects that don't need a managed platform.
Pros
- +Single binary with no dependencies, runs anywhere in seconds
- +Built-in admin UI for database and user management
- +Extremely low resource footprint on an inexpensive VPS
- +Active solo developer with fast iteration cycles
Cons
- -SQLite does not scale horizontally for high-traffic applications
- -No managed cloud option: requires own hosting and backups
- -SDK ecosystem limited compared to Supabase or Firebase
5. Nhost
Open-source BaaS built on Hasura (GraphQL) and PostgreSQL. Offers auth, storage, serverless functions and a Hasura console for GraphQL queries. Cloud pricing starts at $25/month.
Pros
- +Native GraphQL API with Hasura for powerful data queries
- +PostgreSQL as primary database with full SQL support
- +Hasura console for visual schema and permission management
- +Self-hosted option for teams requiring data sovereignty
Cons
- -Hasura adds a layer of complexity for teams without GraphQL experience
- -Smaller community than Supabase or Firebase
- -Cloud pricing higher than Supabase for comparable workloads
6. Convex
Reactive backend with TypeScript-first functions and automatic caching. Convex replaces database, server functions and realtime sync in a single platform. Free tier available for development.
Pros
- +TypeScript-native: functions are typed serverless endpoints
- +Automatic reactive queries without manual subscriptions
- +Built-in scheduling and cron jobs without extra tooling
- +Transactional guarantees for consistent data updates
Cons
- -Proprietary query language differs from SQL or GraphQL
- -No self-hosted option available
- -Relatively new platform with a more limited production track record
7. AWS Amplify
Amazon's BaaS layer on top of AWS services: AppSync (GraphQL), Cognito (auth), S3 (storage) and Lambda. Amplify Gen 2 uses TypeScript configuration instead of CLI wizards. Free tier via AWS Free Tier.
Pros
- +Access to the full AWS ecosystem from a higher abstraction layer
- +Cognito provides enterprise-grade auth with SAML and OIDC
- +AppSync GraphQL with offline sync and conflict resolution
- +Gen 2 TypeScript configuration is more developer-friendly than the old CLI
Cons
- -Steep learning curve due to underlying AWS complexity
- -Debugging requires knowledge of CloudWatch, Lambda and AppSync
- -Lock-in to the AWS ecosystem with intensive use
8. Back4App
Managed Parse Server platform with GraphQL and REST APIs. Back4App offers a visual dashboard for data management and push notifications. Free plan includes 25,000 requests per month.
Pros
- +Built on Parse: proven open-source framework with large community
- +Visual database dashboard for non-technical team members
- +Push notifications built-in for iOS and Android
- +Easy migration for teams already using Parse Server
Cons
- -Parse ecosystem has less momentum than Supabase or Firebase
- -Performance can disappoint with complex queries on large datasets
- -Cloud Functions limited to Node.js
Which tool does MG Software recommend?
MG Software builds on Supabase by default for its PostgreSQL foundation, Row Level Security and generous free plan. For mobile-first projects with offline sync we recommend Firebase. Teams that prefer GraphQL are pointed toward Nhost.
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