Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
#1Base44 records 14,039,232 monthly visits with +0.5% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. Foundry records 1,296 monthly visits with -52.7% growth and Contact for Pricing pricing.

Simulation, evaluation, and RL training infrastructure for AI browser agents
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | base44.com | thefoundryai.com |
| Pricing Model | Freemium, Paid, Contact for Pricing | Contact for Pricing |
| Monthly Visits | 14.04M (14,039,232) | 1.3K (1,296) |
| MoM Traffic Delta |
| +74.64K (+0.5%) |
| -1.44K (-52.7%) |
| Primary Market & Share | 🇺🇸 United States (32.1%) | 🇺🇸 United States (39.5%) |
|---|
| Direct Visits / mo | 7.82M | 506 |
|---|
| User Rating | 4.4 | 4.3 |
|---|
| Supported Platforms | Website | Website |
|---|

Build working apps, websites, and AI agents by describing them
Describe an idea and get a working app with database, authentication, payments, and hosting already wired up — no server or infrastructure setup.
Generates complete websites with layout, copy, and design, plus built-in SEO tools and custom domain support, ready to publish in one click.
Create 24/7 AI agents that connect to your tools, take real actions, manage data, and automate recurring workflows autonomously.
Connects to Google Calendar, Gmail, Slack, Notion, HubSpot, Salesforce, and more, with API access for anything else you use.

Simulation, evaluation, and RL training infrastructure for AI browser agents
Pixel-perfect, reproducible browser environments that eliminate web drift, noise, and rate limits so agent runs are comparable over time.
Every action is tracked, classified, and tagged — click failures, layout shifts, and misfires are surfaced rather than silently swallowed.
Human annotators build custom, long-horizon training data for supervised fine-tuning of browser agents on real enterprise platforms.
Safely sample and evaluate large numbers of trajectories to train browser agents at scale, without running into anti-bot constraints.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
#1
SpecialistAn AI-native code editor offering deeper multi-file control, but demands more developer experience than zero-code platforms.
Free / Open-sourceGoogle's agent-first development platform for building and shipping software with AI agents
#3
Provides a robust cloud development environment with agentic coding, but requires more manual coding oversight than pure no-code.
Converts conversational prompts into hosted applications, though with slightly less advanced UI design customizability.

Free / Open-sourceRun thousands of ready-made web scrapers and AI agents from one cloud platform
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
Free / Open-sourceGenAI-native end-to-end QA agent that plans, writes and heals tests in plain language

Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.

The environments frontier AI trains on, and the agents that do the recurring work

SpecialistTransforms spreadsheets into interactive business apps easily, but lacks the raw code generation flexibility of full-stack AI builders.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
SpecialistAn AI-native code editor offering deeper multi-file control, but demands more developer experience than zero-code platforms.
Free / Open-sourceGoogle's agent-first development platform for building and shipping software with AI agents
Provides a robust cloud development environment with agentic coding, but requires more manual coding oversight than pure no-code.
Converts conversational prompts into hosted applications, though with slightly less advanced UI design customizability.
Free / Open-sourceRun thousands of ready-made web scrapers and AI agents from one cloud platform
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.
The environments frontier AI trains on, and the agents that do the recurring work
SpecialistTransforms spreadsheets into interactive business apps easily, but lacks the raw code generation flexibility of full-stack AI builders.