Agent 37 records 180,030 monthly visits with +24.2% month-over-month growth and Free Trial, Contact for Pricing pricing. Whimsical records 966,895 monthly visits with -18.7% growth and Freemium pricing.
The low-cost cloud sandbox where AI agents actually live
The collaborative whiteboard built for product builders
| Dimension / Metric | | |
|---|---|---|
| Official Domain | agent37.com | whimsical.com |
| Pricing Model | Free Trial, Contact for Pricing | Freemium |
| Monthly Visits | 180.03K (180,030) | 966.9K (966,895) |
| MoM Traffic Delta | +35.12K (+24.2%) | -222.85K (-18.7%) |
| Primary Market & Share | 🇵🇾 Paraguay (52.6%) | 🇮🇳 India (19%) |
| Direct Visits / mo | 72.67K | 602.36K |
| User Rating | 4.3 | 4.7 |
| Supported Platforms | Website | Website |
The low-cost cloud sandbox where AI agents actually live
Pay for vCPU, memory and disk separately while the sandbox runs; when it sleeps or is deleted the compute meter stops and you are left with disk cost only.
Launch Claude Code, Codex, OpenClaw, OpenCode, Hermes, Grok or your own Docker image, each in its own tenant-isolated sandbox.
Files survive sleep, restarts and weeks of inactivity, and agents can be attached to cron-style schedules so work runs unattended.
Expose individual ports publicly, attach your own domain, or keep everything behind an API key on an authenticated URL.
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.
Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.
SpecialistThe AI developer cloud for GPU pods, serverless inference and clustering
SpecialistThe AI developer cloud for GPU pods, serverless inference and clustering
SpecialistRuns serverless Python containers optimized for AI model inference and batch jobs rather than persistent agent sandboxes.
SpecialistRuns serverless Python containers optimized for AI model inference and batch jobs rather than persistent agent sandboxes.
Free / Open-sourceCombines mind mapping and project workflows with AI agents, but less focused on pure visual diagramming and wireframes.
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.
SpecialistCloud browsers and web APIs for AI agents
SpecialistCloud browsers and web APIs for AI agents
Dedicated diagramming platform with strong AI chart generation, but less focus on freeform collaborative brainstorming whiteboards.
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.
SpecialistInstantly turns natural language prompts into mind maps and flowcharts, but offers less freeform canvas drawing flexibility.
Combines whiteboarding and documentation with AI generation, but lacks Whimsical's specialized wireframe shape library.
Combines whiteboarding and documentation with AI generation, but lacks Whimsical's specialized wireframe shape library.
Exceptional UI wireframing and prototyping tools, but less versatile for general mind mapping and freeform brainstorming.
Exceptional UI wireframing and prototyping tools, but less versatile for general mind mapping and freeform brainstorming.
SpecialistSelf-hosted infrastructure platform for provisioning secure cloud development workspaces and governing AI coding agents.
SpecialistLow-cost cloud GPUs with per-minute instances and per-second sandboxes for AI workloads.
SpecialistLow-cost cloud GPUs with per-minute instances and per-second sandboxes for AI workloads.
