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Head-to-head · Backend as a Service

Convex vs Back4app

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Convex #3 in Backend as a Service 8.4/10 Free plan Free plan✓ 3 of 4 features Visit Convex
Back4app #6 in Backend as a Service 7.9/10 Free plan Free plan✓ 0 of 4 features Visit Back4app

Convex leads on 0 checks, Back4app on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreConvex · 8.4/10
  • Free planboth
  • Most featuresConvex · 3 of 4

Convex scores higher on our rubric for backend as a service: 8.4 against 7.9 out of 10; our editors rank them #3 and #6.

Convex is the better fit for typeScript realtime application development. Back4app is the better fit for affordable MongoDB-based application backends.

  • Convex fits best

    TypeScript realtime application development

  • Back4app fits best

    Affordable MongoDB-based application backends

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Side by side

Feature Convex 8.4/10 Visit ↗ Back4app 7.9/10 Visit ↗
At a glance
Editor score 8.4 7.9
Ranking #3 in Backend as a Service #6 in Backend as a Service
Best for TypeScript realtime application development Affordable MongoDB-based application backends
Pricing model Free plan + paid Free plan + paid
Starting price — $5/unit/mo
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web, iOS, Android
Support Email, Community, Docs Email, Tickets, Community
Compliance SOC 2, HIPAA, GDPR, SSO/SAML SOC 2, ISO 27001, GDPR, HIPAA
Integrations 10 integrations 6 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Convex 3/4 · Back4app 0/4
Serverless functions ✓ (best) Not checked yet
Realtime data ✓ (best) Not checked yet
File storage ✓ (best) Not checked yet
Automatic APIs — Not checked yet
Specs
Database type Multi-model Not checked yet
Authentication methods Social Not checked yet
Free authentication users Not checked yet Not checked yet
Our review
Pros
  • Reactive database with TypeScript queries, mutations, and subscriptions
  • Built-in storage, search, scheduling, authentication, and HTTP APIs
  • Free plan plus self-hosted open-source backend option
  • Managed MongoDB with automatic REST and GraphQL APIs
  • Free plan plus containers starting at $5 per month
  • Authentication, realtime sync, storage, and scheduled jobs
Cons
  • Professional starts at $25 per developer per month
  • Business & Enterprise requires a $2,500 monthly minimum
  • Starter costs vary with usage beyond free-tier limits
  • Container pricing is charged per container, per month
  • Deployment regions are limited to 1
  • The platform spans many services, requiring architectural decisions
Our verdict

Convex is a backend platform for dynamic applications, with a reactive document-relational database, TypeScript queries and mutations, realtime client subscriptions, serverless actions, scheduled functions, file storage, search,…

Read the review →

Back4app combines managed backend services with container-based deployment for teams building web and mobile applications. Its backend includes managed MongoDB hosting, automatically generated REST and GraphQL APIs, authentication with…

Read the review →
  1. ConvexBackend as a Service 8.4Free plan
  2. Back4appBackend as a Service 7.9Free plan

Strengths and trade-offs

  • Convex — where it wins

    • Reactive database with TypeScript queries, mutations, and subscriptions
    • Built-in storage, search, scheduling, authentication, and HTTP APIs
    • Free plan plus self-hosted open-source backend option

    Where it doesn't

    • Professional starts at $25 per developer per month
    • Business & Enterprise requires a $2,500 monthly minimum
    • Starter costs vary with usage beyond free-tier limits

  • Back4app — where it wins

    • Managed MongoDB with automatic REST and GraphQL APIs
    • Free plan plus containers starting at $5 per month
    • Authentication, realtime sync, storage, and scheduled jobs

    Where it doesn't

    • Container pricing is charged per container, per month
    • Deployment regions are limited to 1
    • The platform spans many services, requiring architectural decisions

More comparisons

All backend as a service comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update