Case study / macOS software / 2026
Papagal
Papagal is a native macOS app that opens SQLite, Parquet, Excel, CSV, JSON and SQL files as a fast, filterable grid. We designed and built papagal.dev, the site that explains the app, sells the $15 Pro licence and delivers its updates.
Visit the live site ↗100/100
Lighthouse SEO score
98/100
Lighthouse performance score on desktop
3×
Weekly downloads by the end of the first month
The challenge
Papagal is a small, very fast Mac app for anyone who works with data files. Developers and analysts size up a tool like this in seconds. They want to know which formats it opens, whether it is truly native or another Electron wrapper, what it costs and whether their data ever leaves the machine.
The site also had real jobs beyond marketing. It had to sell the Pro licence, answer support questions and serve the update feed the app checks for new versions, without a separate backend to maintain.
What we built
We designed the whole site as a spreadsheet. A formula bar runs across the top, columns are lettered A to L, sections are numbered like rows and the headline is set in a pixel typeface. The app is introduced as a dictionary entry: papagal, from the Bulgarian word for parrot. Visitors get what the app does before they read a single feature.
The page follows the order people decide in: supported formats, features, the free and Pro comparison, privacy, then an FAQ. The free tier and the $15 one-time Pro price sit right under the headline, next to the download size and the macOS requirement, so nobody has to hunt for them.
Under the hood it is a Next.js site on Vercel. Pro purchases go through a Polar checkout, contact messages are delivered by email with Resend, and the site itself serves the appcast feed the Mac app uses to find updates. Privacy, security and terms pages ship in the same build.
Highlights
- Spreadsheet-inspired design: formula bar, lettered columns, numbered sections
- Formats, features, pricing, privacy and FAQ in the order people decide
- Free and Pro comparison with a $15 one-time checkout through Polar
- Direct DMG download with version, size and system requirements up front
- Update feed (appcast) served by the site for in-app updates
- Contact form delivered by email through Resend
- Privacy, security and terms pages
Built with
Next.js · React · TypeScript · Tailwind CSS · Polar · Resend · Vercel
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