SeatDiff

Inspiration

MSPs bill Microsoft seats one way and invoice customers another way. The two counts drift. Someone in ops compares rows by hand. That is slow and easy to miss.

What it does

SeatDiff is a single-purpose web app. Pay US$49 once. Upload two files in the browser. Get a corrected seat-count CSV. Files never leave the browser. No signup. No dashboard.

How we built it

Next.js, TypeScript on Vercel. Paddle checkout is live at US$49. Files stay in the browser.

Challenges we ran into

Comparing two messy invoices without uploading them to a server. No account, no stored files.

Accomplishments that we're proud of

One job, two URLs, no settings. Landing: https://getseatdiff.vercel.app

What we learned

A one-shot quantity report is enough for this month's two sheets.

What's next

No revenue claimed. Submitted as a student (Changwon National University), not a company.

Built With

• next.js
• paddle
• typescript
• vercel