Convex
AI CodingFreemium
TypeScript backend platform that keeps your app always in sync, with real-time queries, built-in auth, and AI-optimized code generation for full-stack developers.
0 upvotesintermediate
Compare Convex vs Ninja AI
Both tools in AI Coding
Ninja AI
AI CodingFreemium
All-in-one AI agent platform combining 25+ models for coding, writing, research, image generation, and workflow automation.
0 upvotesbeginner
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Our Verdict
TL;DRConvex is backend infrastructure for TypeScript developers, while Ninja AI is a multi-model AI assistant for coding, research, writing and images.
It depends on your use case: Convex is where you run a real-time app, and Ninja AI is a general assistant that can help you work.
Convex provides a reactive database, auth with 80+ OAuth integrations, file storage, scheduled functions and vector search, and it's open source and self-hostable. Ninja AI brings 25+ models together with a GitHub-connected coding agent, deep research, file analysis, image generation and scheduling. Its SuperNinja agent runs tasks in a dedicated virtual machine. The two tools don't compete, and a developer could use Ninja AI to help write code that runs on Convex.
💲 Convex: $0/mo to start · Ninja AI: $0/mo to startBuild a real-time collaborative appConvex
Self-host an open source TypeScript backendConvex
Add vector search to an AI featureConvex
Research and fact-check a topic in depthNinja AI
Generate images and analyze filesNinja AI
Choose Convex if…
Choose Convex if you need a production backend with real-time sync, auth and storage for your application.
⚠ Its free tier covers 1 project, and teams unfamiliar with TypeScript face a learning curve.
Choose Ninja AI if…
Choose Ninja AI if you want one AI subscription for coding help, research, writing, images and scheduling.
⚠ Not a backend or hosting platform, and paid plans cap SuperNinja agent requests each month.
Pricing
Pricing Comparison
Convex
Free$0
Up to 1M function calls/month, 500MB storage, 1GB bandwidth, 1 project
Pro$25/mo
10M function calls/month, 50GB storage, 50GB bandwidth, unlimited projects
Startup Program$0
Free Pro tier for qualifying early-stage startups
Enterprise$Custom
Custom limits, SLA, dedicated support, security review
Ninja AI
Free$0
Limited one-time credits, basic features trial
Standard$19/mo
40 SuperNinja requests, 1 VM, unlimited chat and image AI
Pro$29/mo
80 SuperNinja requests, 2 VMs, VS Code editor, image editor
Ultra$49/mo
160 SuperNinja requests, 5 VMs, 3M context window, 500 messages/day
Features
Feature Comparison
Convex
Real-time QueriesTypeScript BackendAutomatic SyncBuilt-in Authentication80 Plus OAuth IntegrationsModular ComponentsOpen SourceSelf-hostableAI Code GenerationType-safe APIDatabase QueriesFile StorageScheduled FunctionsWebhooksFull-text SearchVector SearchStreamingLocal DevelopmentDashboard UIStartup Program
Ninja AI
25+ LLM ModelsCoding Agent with GitHubDeep Research AgentAI Image GenerationFile AnalysisMeeting SchedulingMulti-Agent WorkflowsCross-Platform Support
Fit
Best For & Not For
Convex
✅ Best For
✅Full-stack TypeScript developers building real-time applications
✅Teams tired of managing WebSockets, caches, and state synchronization manually
✅Startups wanting a backend that scales without infrastructure overhead
✅Developers building collaborative or multiplayer applications
✅Engineers who want AI coding assistants to generate accurate backend code
✅Open source projects needing a self-hostable TypeScript backend
❌ Not For
❌Teams already deeply invested in PostgreSQL or MySQL with complex SQL queries
❌Projects requiring multi-region active-active database deployments
❌Applications needing mature enterprise database features like row-level security policies
❌Teams unfamiliar with TypeScript who prefer SQL or NoSQL paradigms
Ninja AI
✅ Best For
✅Software Developers
✅Content Creators
✅Business Teams
✅Solopreneurs
❌ Not For
❌Users needing fully offline AI tools
Availability
Platform & Accessibility
Convex
web-basedapi
Ninja AI
web-baseddesktopmobileapi
Use & Audience
Tasks & Who It's For
Integrations
Integrations
Convex
Development
GitHubVercelNetlifyClerk
Ninja AI
Development
GitHub
Project Management
JiraLinear
Communication
Slack
CRM
SalesforceHubSpot
Writing & Docs
Notion
Design
Figma
Use Cases
Real-world Use Cases
Convex
1
A developer builds a real-time collaborative whiteboard app using Convex queries that automatically push updates to all connected clients without any WebSocket code2
A startup uses Convex's TypeScript backend to ship an entire SaaS MVP with auth, database, and API in under a week, leveraging AI assistants that generate accurate Convex code from descriptions3
A team eliminates their Redis cache layer by switching to Convex's automatic reactivity system, reducing infrastructure complexity significantlyNinja AI
1
Code Generation and Debugging2
Deep Research and Fact-Checking3
AI Image CreationKeep Exploring
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