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. Clean records 25,981 monthly visits with -44.9% growth and Contact for Pricing pricing.

Real-time buying signals for sales teams and their agents
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | base44.com | tryclean.ai |
| Pricing Model | Freemium, Paid, Contact for Pricing | Contact for Pricing |
| Monthly Visits | 14.04M (14,039,232) | 25.98K (25,981) |
| MoM Traffic Delta |
| +74.64K (+0.5%) |
| -21.14K (-44.9%) |
| Primary Market & Share | 🇺🇸 United States (32.1%) | 🇺🇸 United States (70.3%) |
|---|
| Direct Visits / mo | 7.82M | 18.76K |
|---|
| User Rating | 4.4 | 4.1 |
|---|
| 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.

Real-time buying signals for sales teams and their agents
Continuous monitoring of permits, equipment shipments, filings, press releases, customs records and hiring posts, with every record dated and attributed.
Clean groups separate records at one company and reads them in date order to produce a single, explainable reason why the account is worth contacting now.
For each qualified company, Clean names the person who owns the decision — for example a plant manager or VP of Operations — with email and phone verified.
Hand prospects and campaign triggers to agents in Claude or Codex, or wire the API and MCP server into an internal stack, with replies returning to one place.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
#1
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#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.

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Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
Free / Open-sourceThe AI coding agent for building ambitious software
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.
Free / Open-sourceThe coding agent that learns your coding taste
Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.