The operating system
for students who build.
Turn your side projects, hackathons, and research into a professional builder profile — then use AI to generate everything from Common App descriptions to fellowship essays.
Aanya Krishnaswamy
ProHS Junior · SF Bay Area · Building since 2022
AI-powered study partner with 2,400+ active users
ML model to classify ocean debris from satellite imagery
ProofOS generates materials for every high-stakes application a student builder faces.
Everything a serious
builder needs.
ProofOS isn't a school tool. It's a professional system built for students who are already shipping.
Public Builder Profile
A shareable profile page with your bio, projects, metrics, skills, and what you're building now. Share it in your college apps, cold emails, and social bio.
AI Application Assistant
Generate resume bullets, Common App activity descriptions, fellowship answers, internship cold emails, and founder bios — all grounded in your actual project history.
Project Database
Structured entries for every project: title, category, tech stack, metrics, links, screenshots, and lessons learned. Never forget what you built or how it went.
Proof Locker
Attach screenshots, links, numbers, and testimonials to each project. Real receipts — not just claims. Your evidence, organized and ready when you need it.
Opportunity Tracker
A board for internships, fellowships, grants, and hackathons. Track deadlines, required materials, and your application status in one place.
Dashboard
Profile completion score, project count, upcoming deadlines, and suggested next actions. Clarity on where you stand and what to do next.
Log it. Show it.
Win with it.
ProofOS is built around one idea: the work you've already done is your strongest asset. Most students bury it in a Google doc. ProofOS puts it where it counts.
Add your projects
Log everything you've built — apps, research, nonprofits, YouTube channels, hackathon entries. Include screenshots, links, metrics, and what you actually learned.
Publish your builder profile
Get a clean, shareable profile at proofos.co/yourname. Drop it in your college application, fellowship submission, cold email, or Twitter bio.
Generate application materials
Tell the AI which opportunity you're applying to. It reads your project history and writes role-specific bullets, activity descriptions, and essays — grounded in what you actually built.
Generating for:
Common App Activity Description
Based on: StudySync, CleanOcean Bot, Hack the North win
Activity description (150 chars)
Thiel Fellowship essay hook
Cheaper than a SAT tutor.
Infinitely more useful.
Start free and upgrade when a deadline forces you to be serious about it. Most students upgrade in August — don't wait that long.
Enough to get started and prove the value.
- 1 public builder profile
- Up to 3 projects
- 5 AI generations / month
- Basic profile themes
For active builders facing real deadlines.
- Unlimited projects
- Unlimited AI generations
- Custom profile themes
- Opportunity tracker
- Proof locker
- Priority support
When the stakes are highest.
- Everything in Pro
- Advanced application packs
- PDF profile export
- Priority customization
- Deeper AI feedback
- Early access to new features
No credit card required to start. Cancel anytime.
Your projects deserve
a real home.
Stop writing the same descriptions in a notes app every application cycle. ProofOS compounds your work so every opportunity you apply to gets better material than the last.