ProbPath vs SpinBuild

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ProbPath compared with SpinBuild
Detail	ProbPath	SpinBuild
What it does	Free AI probability tree generator for scenarios and calculations	AI platform for building websites and web apps from plain-language descriptions
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Basic: $0 forever with 5 free AI credits, manual editing, up to 3 saved trees, and white-background PNG export. 500 Credits: $12.90 one-time, valid for 30 days, covers roughly 100-160 polished trees. 2,000 Credits: $26.90 one-time, valid for 30 days, covers roughly 400-650 polished trees.	Starter plan is free forever with no credit card required. New accounts get 250 welcome credits for the first month. Paid plans available with monthly credits that reset on the first of each month and do not roll over. Cost depends on the AI model chosen, thinking level, and work required per reques
Key features	Natural language scenario description Automatic calculation and validation of probabilities Conversational refinement via chat Direct canvas editing of nodes and branches Support for conditional probability and dependent events Export to PNG, PDF, and SVG formats Multi-language natural language support Responsive tree layout engine Save and manage multiple probability trees Question answering about tree probabilities	Support for 11 stacks: Next.js, React, Vue, Svelte, Astro, Preact, Vite, Express, Fastify, Koa, HTML/CSS/JS Choice of AI models in one dropdown including Claude Opus, Claude Sonnet, GPT and hundreds of others Live preview that updates as code is written Code review with per-file approval and diffs One-way sync to GitHub repository you own Private Postgres database per project One-click HTTPS deployment MCP support for Cursor, Codex, Claude Code, Grok Build Kernel-isolated containers for app security Version history with rollback to any previous state
What makes it different	Automatic calculation and validation of all probabilities without manual math Conversational chat interface for refining scenarios on the fly Natural language input requires no modeling skills or drawing Handles both independent and dependent probability events Instant downstream recalculation when edits are made	Vibe coding: describe what you want instead of writing every line yourself Real full-stack apps with live preview, not just mockups or templates Your code in a GitHub repo you own, yours to keep and run elsewhere Switch AI models in one dropdown to balance speed, capability and cost
Community votes	0	0
DR (Domain Rating by Ahrefs)	5 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	17	1
Citation Flow (Majestic)	20	20
Referring domains (Majestic)	16	3

5 details filled in for both companies.

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