Appwrite vs Supabase vs Calljmp: Backend to Choose in 2025
Compare Appwrite, Supabase, and Calljmp - top mobile backend platforms in 2025. Explore key differences in hosting, performance, scalability, and mobile security.
Which backend works best for you?
Choosing between Appwrite, Supabase, and Calljmp depends on your app’s needs and control preferences. Appwrite offers self-hosted flexibility but adds scaling complexity. Supabase is great for SQL-focused teams, though mobile and edge features are still evolving. Calljmp is built mobile-first, with attestation-based security, edge-native speed, and CLI-managed services for React Native and Flutter.
| Feature | Appwrite | Supabase | Calljmp |
|---|---|---|---|
| Target Audience | Full-stack devs | Full-stack devs | Mobile app developers |
| Mobile SDKs | iOS, Android | Flutter (beta), JS | React Native, Flutter |
| Authentication | OAuth2, email/pass | OAuth2, email/pass | Email/pass, Google, Apple + Attestation |
| Database | Document DB | Postgres | SQLite-compatible (Cloudflare D1) |
| Realtime | WebSockets, limited to built-in resources | WebSockets, DB change events only | WebSockets with custom topics, filtering & edge delivery |
| Edge Deployment | No | Optional (Edge Functions) | Native (Cloudflare Workers) |
| Storage | S3-compatible | S3-compatible | Cloudflare R2 (S3-compatible) |
| Security | RLS, JWT | RLS, JWT | Attestation (App Integrity) |
| Permission Controls | RLS, project-level | RLS, schema-level | Role/tag-based + row-level |
| Pricing | Free tier + usage pricing | Free tier + usage pricing | Free tier + $15 Pro plan |
| Migration Management | Manual | SQL migrations | Auto migrations via CLI |
Target Audience
Mobile SDKs
Authentication
Database
Realtime
Edge Deployment
Storage
Security
Permission Controls
Pricing
Migration Management
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Authentication
User management and security features
Appwrite
Email/password and OAuth2 logins with standard session management. It's straightforward but requires more configuration to protect against abuse or ensure mobile-specific security.
Supabase
Integrated row-level security using JWTs. Developers can tie data visibility to authenticated user sessions, which suits multi-tenant web apps or SaaS dashboards.
Calljmp
Removes the need for API keys or secrets on the client side. Authenticates users and devices using Play Integrity API (Android) and App Attestation (iOS), creating a highly secure link between frontend and backend. Attestation-first model is unmatched for trust and security.
Database
Data storage and management
Appwrite
NoSQL document database, ideal for projects that require flexible data models and fast prototyping. However, because it’s schema-less, querying can become complex as your data grows and relationships become more critical.
Supabase
PostgreSQL with full relational database features and SQL querying. It's a great fit for developers who need joins, views, and structured schemas - especially for data-heavy applications like dashboards or analytics.
Calljmp
Combines relational structure with mobile-native performance through Cloudflare D1, a globally distributed SQLite-compatible database. Developers can define schemas visually, use raw SQL, and apply fine-grained, row-level permission controls. Balances structure, performance, and mobile simplicity - ideal for fast-moving mobile projects.
Realtime
Live data updates and event-driven communication
Appwrite
Appwrite provides WebSocket support for listening to changes in documents, users, and other built-in services. It’s simple to integrate for backend-driven updates, but lacks support for custom events or flexible Pub/Sub patterns.
Supabase
Supabase streams database change events (INSERT, UPDATE, DELETE) using Postgres replication. It works well for table-driven updates but doesn’t support arbitrary topics or app-defined realtime events outside the database.
Calljmp
Calljmp supports both database change events and a full custom Pub/Sub system, built on Cloudflare Durable Objects. Developers can define topics (e.g. chat.room.42), apply filters, and receive low-latency updates at the edge. Fully integrated with mobile SDKs.
File Storage
File management and access control
Appwrite
S3-compatible storage with role-based permissions. Flexible but requires manual setup and maintenance of access control logic.
Supabase
S3-compatible storage tied into Postgres-based auth system. File permissions managed via policies at the database level, tightly integrated with user data.
Calljmp
Integrates Cloudflare R2 for file storage, maintaining S3 compatibility and running on a globally distributed edge. Permissions use the same role/tag system as the database, ensuring consistent security logic across backend components.
Cloud & Edge Functions
Serverless computing capabilities
Appwrite
Deploy cloud functions in multiple languages. Hosted centrally and may experience latency depending on user location.
Supabase
Edge Functions powered by Deno and V8 isolates. Can run close to users for improved response times, but local dev tools and deployment workflows are less mature.
Calljmp
Runs backend services on Cloudflare Workers for truly edge-native compute. Services are defined with simple REST endpoints and deployed instantly via CLI. Functions inherit user context, secrets, and access to buckets and the database.
CLI & Local Dev Support
Development workflow and tooling
Appwrite
Docker-based local development. Enables self-hosting and full control, but experience is heavier and migrations/setup are mostly manual.
Supabase
CLI tool for local Postgres databases and project emulation. Easier to test before production but still requires manual schema and function management.
Calljmp
Purpose-built CLI for mobile developers. Supports local SQLite schema generation, automatic migrations, and deployment of edge functions. Backend can be bootstrapped, versioned, and updated with a few commands-ideal for small teams or indie devs.
Pricing
Cost structure and value proposition
Appwrite
Open-source and free to self-host, but hosting and scaling require DevOps effort, introducing hidden costs in time and maintenance.
Supabase
Supabase requires a paid tier for scaling, which adds cost and limits flexibility. Backups and replication come as paid add-ons, increasing total expenses. Real-time features are costly due to charges on peak connections and message traffic.
Calljmp
Calljmp offers usage-based, on-demand pricing with no hidden costs, making it budget-friendly for startups. Backups with 30-day retention and real-time features like unlimited connections are included by default. Scaling is automatic and infrastructure-free, powered by Cloudflare’s edge network for maximum performance and efficiency.
Evaluating platforms: a closer look
Detailed analysis of each platform's strengths, weaknesses, and ideal use cases to help you make the right choice.
Appwrite
Open-source backend with document-style storage
Best for
Full control via self-hosting, need custom runtimes, or prefer a modular approach
Strengths
- Flexible, self-hosted backend with document-style storage
- Multiple language support for cloud functions
- S3-compatible storage with role-based permissions
- Docker-based local development
Considerations
- Requires DevOps effort for hosting and scaling
- Schema-less querying can become complex
- Central hosting may experience latency
- Hidden costs in time and maintenance
Supabase
Open source Firebase alternative with PostgreSQL
Best for
Teams comfortable with SQL and PostgreSQL who need real-time sync and relational data
Strengths
- Full relational database features with PostgreSQL
- Integrated row-level security using JWTs
- S3-compatible storage tied to Postgres auth
- CLI tool for local development
Considerations
- Can become expensive at scale
- Regional latency with hosted instances
- Less mature mobile SDKs and edge capabilities
- Manual schema and function management
Calljmp
Mobile-first backend built on Cloudflare's edge network
Best for
Secure, mobile-first backend with edge-native performance and minimal latency
Strengths
- Mobile-first with native React Native and Flutter SDKs
- App Attestation (Play Integrity, DeviceCheck) security
- Cloudflare D1 globally distributed SQLite-compatible database
- Purpose-built CLI for mobile developers
Considerations
- Newer platform with growing ecosystem
- No GraphQL support yet
What makes Calljmp different
Calljmp stands out by focusing deeply on mobile-first development. While other platforms retrofit their web-first tools for mobile apps, Calljmp builds everything with mobile developers in mind.
App Attestation Built-In
Uses Google Play Integrity and Apple App Attestation to verify app authenticity - no API keys or secrets exposed on the client
Cloudflare Edge by Default
Your backend services, database, and storage all run on Cloudflare's edge network, bringing global speed and low latency with no extra setup
Zero-Config Backend Deployment
With the Calljmp CLI, developers can spin up schema, deploy edge functions, and manage environments - all from a single command line tool
Unified Role-Based Access Control
Calljmp applies a consistent, tag-based permission system across users, database rows, and storage files. Define once, reuse everywhere
Native SDKs for Mobile Platforms
Calljmp provides production-ready SDKs for both React Native and Flutter - tightly integrated with device-level security and local dev flows
Pricing
Calljmp’s usage-based pricing has no hidden costs, with backups and real-time features included by default. It auto-scales on Cloudflare’s edge for maximum speed and efficiency.
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Frequently asked questions
Find answers to common questions about choosing between these backend platforms.