Rubber: No-Code AI App Builder with GPT-4 & PaLM 2
Rubber lets anyone build and embed custom AI apps on their website without writing a single line of code.
Overview
Rubber is a no-code platform designed to democratize AI app creation, letting businesses build and embed intelligent tools directly into their websites in minutes rather than weeks. By combining customizable UI components, external data connections, and advanced prompt engineering, users can create everything from chatbots to lead-gen forms without touching a codebase. The platform taps into leading AI models like GPT-4 and Google PaLM 2, giving users access to state-of-the-art language capabilities through a simple visual interface.
Whether you're a marketer looking to automate content creation, a support team wanting to deploy a smart chatbot, or an entrepreneur validating a new product idea, Rubber provides the templates and pre-built components to get you moving fast. Apps can be published and shared instantly with a single click, making collaboration with teammates and customers frictionless. It's built for speed, flexibility, and accessibility—removing the technical barrier that traditionally gates AI adoption for small teams.
Capabilities & Features
- No-code
- AI app builder
- AI chatbot
- Lead generation
- Customer support
- AI marketing
- GPT-4
- PaLM 2
- Web app
- AI tools
- Prompt engineering
Core Features
- No-code AI app builder
- Fully customizable user interface
- External data source integration (.txt, .csv, .pdf)
- Pre-built templates and components
- Support for GPT-4 and Google PaLM 2
- Prompt chaining for complex workflows
- One-click deployment and hosting
Use Cases
- Launching AI chatbots for round-the-clock customer support
- Building AI-driven forms to capture and qualify leads
- Creating AI SEO assistants to streamline content optimization
- Automating email marketing campaigns with AI-generated copy
- Developing AI product marketing tools for faster go-to-market
- Running quick AI-powered experiments to validate new product ideas
Best For
- Marketers
- Small business owners
- Product managers
- Entrepreneurs
- Content creators
- Sales teams
- Customer support teams
Pros
- •No coding skills required to build functional AI apps
- •Access to top-tier AI models like GPT-4 and PaLM 2
- •Fast deployment—apps can go live in minutes
- •Flexible data integration supports multiple file formats
- •Pre-built templates accelerate the building process
Cons
- •Free plan is limited to just 50 entries per month, restricting scale
- •Only one custom data source allowed on the free tier
- •Branding removal requires upgrading to the paid Pro plan
- •Advanced customization or fine-tuned models require Custom pricing and direct contact
How to Use
Start by selecting a pre-built template or starting from scratch to customize your app's user interface. Next, connect your external data sources (such as .txt, .csv, or .pdf files) to give your AI app relevant context. Then, write and chain prompts using models like GPT-4 or PaLM 2 to define how your app responds. Once configured, preview and test the app, then publish it with a single click to embed it on your website or share it directly with your team and customers.
Frequently Asked Questions
Open in AI Studio
Ask our AI to evaluate if Hubble with Google PaLM fits your specific workflow.
Pricing
Rubber offers a free Personal plan with limited entries and one data source, a $30/month Pro plan with unlimited GPT-4 access and branding removal, and a Custom enterprise tier with tailored pricing for fine-tuned models and dedicated hosting.
Pricing data is provided as a summary. Visit the vendor website for full tier details.