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. Sublayer records 635 monthly visits with -61.5% growth and Free pricing.

A model-agnostic Ruby framework for building AI agents and automations
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | base44.com | sublayer.com |
| Pricing Model | Freemium, Paid, Contact for Pricing | Free |
| Monthly Visits | 14.04M (14,039,232) | 635 (635) |
| MoM Traffic Delta |
| +74.64K (+0.5%) |
| -1.01K (-61.5%) |
| Primary Market & Share | 🇺🇸 United States (32.1%) | 🇮🇳 India (100%) |
|---|
| Direct Visits / mo | 7.82M | 244 |
|---|
| 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.

A model-agnostic Ruby framework for building AI agents and automations
Use OpenAI, Claude or Gemini — or plug in your own provider — without locking your app to one model.
Reusable classes for single generation tasks such as code from description or a description from code.
Operations that supply inputs to or act on the output of generators, like writing a file or running a command.
Autonomous entities with triggers such as file changes or time intervals — for example an agent that runs tests and fixes failing code.
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.

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.
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.

Give your AI agents secure, authenticated access to 1,700+ apps
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape

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

High-trust frontier inference, encrypted end to end

SpecialistTransforms spreadsheets into interactive business apps easily, but lacks the raw code generation flexibility of full-stack AI builders.
Turns conversational prompts into published web and mobile apps, but has fewer enterprise-grade scaling templates.
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.
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.
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.
Give your AI agents secure, authenticated access to 1,700+ apps
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.
High-trust frontier inference, encrypted end to end
SpecialistTransforms spreadsheets into interactive business apps easily, but lacks the raw code generation flexibility of full-stack AI builders.
Turns conversational prompts into published web and mobile apps, but has fewer enterprise-grade scaling templates.