Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.

ProtoPie records 72,414 monthly visits with -23.6% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. Whimsical records 966,895 monthly visits with -18.7% growth and Freemium pricing.

AI-driven high-fidelity prototyping for real interactions
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | protopie.io | whimsical.com |
| Pricing Model | Freemium, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 72.41K (72,414) | 966.9K (966,895) |
| MoM Traffic Delta |
| -22.35K (-23.6%) |
| -222.85K (-18.7%) |
| Primary Market & Share | 🇮🇳 India (12.3%) | 🇮🇳 India (19%) |
|---|
| Direct Visits / mo | 34.81K | 602.36K |
|---|
| User Rating | 4.4 | 4.7 |
|---|
| Supported Platforms | Website | Website |
|---|

AI-driven high-fidelity prototyping for real interactions
Describe the behavior you want and let AI generate the interaction logic, then perfect it credit-free rather than clicking through every step manually.
Build conditional flows, validate inputs and drive intricate motion with variables, formulas and response logic that mirrors real product behavior.
Link phones, tablets, TVs, smartwatches and production hardware through ProtoPie Connect, native device sensors, Arduino and custom integrations.
Include voice commands and native sensor input so prototypes respond the way an installed product would in a real environment.

The collaborative whiteboard built for product builders
AI Flowcharts, AI Mind Maps and AI Wireframes convert a short text prompt into structured, fully editable diagrams, branched mind maps, or web and mobile wireflows — no manual drawing required.
Boards host diagrams, flowcharts, mind maps, wireframes, embedded media and documents side by side, so a whole product narrative lives in a single shareable file.
Multiple teammates edit the same board simultaneously with live cursors, thread comments attached to specific objects, and mention-based notifications.
Drag-and-drop UI components let teams sketch screens, link them into clickable flows and iterate on product ideas before engineering commits to a build.
Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.


Google's AI tool for generating mobile and web UI designs from prompts
A searchable library of 145,000+ real web and iOS screens for UI/UX inspiration.
Free / Open-sourceCombines mind mapping and project workflows with AI agents, but less focused on pure visual diagramming and wireframes.

From idea or sketch to editable wireframes, hi-fi UI and code in minutes
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.

AI-powered UI design and prototyping for product teams

Turn a prompt into editable UI screens in seconds

Dedicated diagramming platform with strong AI chart generation, but less focus on freeform collaborative brainstorming whiteboards.
SpecialistInstantly turns natural language prompts into mind maps and flowcharts, but offers less freeform canvas drawing flexibility.
AI-native design workspace that turns prompts into production-ready UI
Combines whiteboarding and documentation with AI generation, but lacks Whimsical's specialized wireframe shape library.
Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.
A searchable library of 145,000+ real web and iOS screens for UI/UX inspiration.
From idea or sketch to editable wireframes, hi-fi UI and code in minutes
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.
AI-powered UI design and prototyping for product teams
Turn a prompt into editable UI screens in seconds
Dedicated diagramming platform with strong AI chart generation, but less focus on freeform collaborative brainstorming whiteboards.
SpecialistInstantly turns natural language prompts into mind maps and flowcharts, but offers less freeform canvas drawing flexibility.
AI-native design workspace that turns prompts into production-ready UI
Combines whiteboarding and documentation with AI generation, but lacks Whimsical's specialized wireframe shape library.