AI App Builders Comparison

Base44 vs. Retool

At a glance

Base44

Best for

Best for non-technical founders who want the fastest path from prompt to a working app.

Freelancers
Small and mid-sized

Retool

Best for

Best for engineering and operations teams building internal tools on top of existing databases and APIs.

Small and mid-sized
Enterprise

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

Full Comparison

Criterion	Base44	Retool
Starting price	Free tier; paid from $16 / month Prices are the annual-billing rate, monthly billing costs more. Plans are metered in message and integration credits.	lower value Free; paid plans from $10 / builder / month Annual billing: Team $10 per builder and $5 per internal user per month, Business $50 per builder and $15 per internal user. On monthly billing that becomes $12 / $7 and $65 / $18. Enterprise on request.
Free trial	Free tier	Free plan for up to 5 users
Commercial use	Yes	Not stated
Output	Working app with database, auth and hosting handled automatically	Internal web and mobile apps, workflows and AI agents
API	Not stated	Yes, the Retool API manages the organisation, its users and Spaces
Hosting	Not stated	Retool cloud or self-hosted
What it generates	Full-stack web apps, plus websites and AI agents, from a chat brief	Internal tools: web and mobile apps, scheduled and event-driven workflows, and AI agents; an AI app builder starts an app from a prompt next to the classic drag-and-drop editor
Stack and frameworks	React with React Router, Vite, Tailwind CSS and shadcn/ui; serverless backend functions on the Deno runtime	Drag-and-drop component library with JavaScript in queries, bindings and transformers; custom components are written in React and TypeScript and published to the organisation's component library
Auth and database	Yes, a managed NoSQL database and built-in user authentication	Connects to any database, API or LLM provider, with a hosted Retool Database included; permissions and audit logging from the Business tier, SSO and SCIM on Enterprise
Hosting and deploy	Yes, built-in hosting; publishes to a Base44 address or a connected custom domain	Retool cloud or self-hosted; the free, Team and Business tiers can both be self-hosted, Enterprise adds unlimited end users and white-labelling
Payments	Yes, Stripe set up from the AI chat: cards, Apple Pay, Google Pay and multiple currencies	No built-in billing or checkout; a payment provider is connected as an API resource like any other
Access to the code	Yes, editable in the Code tab, two-way GitHub sync, and a CLI eject into a standalone local project	Apps live in Retool rather than as an exportable codebase; JavaScript and custom React components extend them, and Git-backed source control is an Enterprise feature
Deployment	Cloud (SaaS), Browser-based	more entries Cloud (SaaS), Browser-based, On-premise
Support	more entries Email helpdesk, Community forum	Community forum
Onboarding	Documentation and knowledge base	Documentation and knowledge base
Company size	Freelancers, Small and mid-sized	Small and mid-sized, Enterprise
Integrations	more entries Stripe, Google Calendar, Gmail, Slack, Notion, HubSpot, Salesforce, GitHub	OpenAI, Anthropic, Google, AWS Bedrock, Azure OpenAI

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

Starting price Base44 Free tier; paid from $16 / month Retool Free; paid plans from $10 / builder / month
Free trial Base44 Free tier Retool Free plan for up to 5 users
Deployment Base44 Cloud (SaaS), Browser-based Retool Cloud (SaaS), Browser-based, On-premise
Company size Base44 Freelancers, Small and mid-sized Retool Small and mid-sized, Enterprise
Support Base44 Email helpdesk, Community forum Retool Community forum

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

The trade-offs

Strengths and Limitations

Base44

Strengths

Zero configuration, database, auth and hosting are handled
Fastest path for non-technical founders
Generates real code, with two-way GitHub sync and a CLI eject
Stripe payments wired up from the chat

Limitations

Less control and flexibility than code-first tools
GitHub sync is permanent, a project cannot be transferred back to Base44
An ejected project carries the entity schemas but starts with an empty database
Now part of the Wix ecosystem
Newer platform

Retool

Strengths

Connects to any database, API or LLM provider instead of starting from its own data
Self-hosting is available on every tier, the free one included
Extensible with JavaScript everywhere and custom React and TypeScript components

Limitations

Priced per builder and per internal user, so cost tracks headcount rather than apps
Apps are not an exportable codebase, so leaving the platform means rebuilding
Git source control, SSO and SCIM are Enterprise-only

Plans

Pricing

Base44

Free $0 25 message credits and 100 integration credits per month, up to 5 apps.
Starter $16 / month Billed annually. 100 message credits and 2,000 integration credits per month, unlimited apps, in-app code edits, custom domain, GitHub integration.
Builder $40 / month Billed annually. 250 message credits and 10,000 integration credits per month, AI model selection, one year of a free domain.
Pro $80 / month Billed annually. 500 message credits and 20,000 integration credits per month, premium support.
Elite $160 / month Billed annually. 1,200 message credits and 50,000 integration credits per month.

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Retool

Free $0 Up to 5 users, unlimited apps, 500 workflow runs a month, 5 GB database and 5 GB file storage, 250 AI credits a month.
Team $10 Per builder per month on annual billing ($12 monthly); internal users $5 ($7 monthly). 5,000 workflow runs a month, staging environment, release versions.
Business $50 Per builder per month on annual billing ($65 monthly); internal users $15 ($18 monthly). Adds audit logging, rich permissions, portals and external user access.
Enterprise Custom Quoted by the vendor. Adds SSO and SCIM, Git source control, unlimited end users and white-labelling.

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What users say

Review Scores · opens after launch

Base44

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.

Retool

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

Base44 https://base44.com · no check date recorded yet

Retool https://retool.com · 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.