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AI App Builders Comparison

a0.dev vs. Emergent

At a glance

At a glance

a0.dev

Best for

Best for founders who want to ship a native mobile app to the App Store from a prompt.

  • Freelancers
  • Small and mid-sized

Emergent

Best for

Best for founders and teams who want a prompt to end in a deployed app rather than a codebase to host themselves.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion a0.dev Emergent
Starting price Not stated Free tier; Standard $20 / month, Pro $200 / month Billed annually the Standard and Pro plans are $17 and $167 per month. Each deployed app costs a further 50 credits per month.
Free trial Not stated Free tier with 10 credits per month
Output Native iOS and Android apps (React Native), plus web Deployed full-stack web and Expo mobile apps
API Yes Not stated
What it generates Native mobile apps for iOS and Android (plus web), from a prompt Full-stack web apps and Expo mobile apps, built from a prompt and deployed to a live URL
Stack and frameworks React Native React and Next.js, Python with FastAPI, MongoDB; Expo (React Native) for mobile. No Flutter, Kotlin or Swift
Auth and database Managed backend with a choice of Convex or Supabase for the database, plus built-in push notifications Yes, MongoDB and authentication are set up with the app; Supabase is among the listed integrations
Hosting and deploy One-click publishing to the App Store and Google Play (IPA/APK), with a web preview Yes, one-click deploy in five to ten minutes, custom domains with automatic SSL, 50 credits per deployed app per month
Payments Built-in monetization: subscriptions and one-time purchases via the App Store Stripe is among the listed integrations
Access to the code Projects are built on Expo and edited by the agent inside a0's own workspace. The documentation covers runtime and Expo SDK upgrades, over-the-air updates and store publishing, and documents no source-code download, GitHub sync or local development Yes, push to a GitHub repository and branch from the editor, and import an existing repository
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Community forum Not stated
Onboarding Documentation and knowledge base Documentation and knowledge base
Company size Freelancers, Small and mid-sized more entries Freelancers, Small and mid-sized, Enterprise
Integrations Convex, Supabase, App Store Connect, Google Play, Firebase Cloud Messaging more entries GitHub, Stripe, Supabase, Airtable, Slack, Twilio, OpenAI, Claude

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Company size a0.dev Freelancers, Small and mid-sized Emergent Freelancers, Small and mid-sized, Enterprise
  • Output a0.dev Native iOS and Android apps (React Native), plus web Emergent Deployed full-stack web and Expo mobile apps
  • What it generates a0.dev Native mobile apps for iOS and Android (plus web), from a prompt Emergent Full-stack web apps and Expo mobile apps, built from a prompt and deployed to a live URL
  • Stack and frameworks a0.dev React Native Emergent React and Next.js, Python with FastAPI, MongoDB; Expo (React Native) for mobile. No Flutter, Kotlin or Swift
  • Auth and database a0.dev Managed backend with a choice of Convex or Supabase for the database, plus built-in push notifications Emergent Yes, MongoDB and authentication are set up with the app; Supabase is among the listed integrations

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

a0.dev

Strengths

  • Generates a full React Native app and publishes it to the App Store and Google Play
  • Built-in monetization with subscriptions and one-time purchases
  • Convex backend and push notifications wired in

Limitations

  • Primarily a mobile app builder: it generates native iOS and Android apps, with web as a secondary target
  • Output is React Native on Expo, so you work within that stack rather than a framework of your choice

Emergent

Strengths

  • Deploys to a live URL with a custom domain and automatic SSL, no pipeline to set up
  • Web and Expo mobile apps come from the same platform
  • Code pushes to GitHub, and an existing repository can be imported

Limitations

  • The stack is fixed, with no Flutter, Kotlin or Swift
  • Every deployed app draws 50 credits a month on top of the plan
  • Large gap between the Standard and Pro plans, at $20 and $200 per month

Plans

Pricing

Emergent

  • Free $0 10 credits per month, core platform, web and mobile.
  • Standard $20 Per month, or $17 per month billed annually. 100 credits per month, private project hosting, GitHub integration.
  • Pro $200 Per month, or $167 per month billed annually. 750 credits per month, 1M context window, custom agents, priority support.
  • Business Not stated Custom. Adds role-based access control, single sign-on, shared workspaces and real-time co-editing.
  • Enterprise Not stated Custom. Adds audit logs, self-hosted database support, VPC deployment, user-level credit limits and usage reporting.
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What users say

Review Scores · opens after launch

a0.dev

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Emergent

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Where this comes from

Where this comes from

a0.dev https://a0.dev · checked against the official source on 2026-09-02

Emergent https://emergent.sh · no check date recorded yet

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.