On-device software · by JKJL LIMITED
Software that keeps
your data yours.
We build tools that run entirely on your own device — no accounts, no servers, no data leaving your machine. For Mac and iPhone.
See the apps
Runs on-device
No data collected
No subscriptions on our apps
The apps
New · for Mac
Spreadsheet Analyzer
macOS · Apple Silicon
Ask your Excel financials questions in plain English — running entirely on your Mac. It reads financial statements correctly, and not one cell is ever uploaded.
Learn more →
$79 one-time
Professor OrdinaryAI
iPhone · Language tutor
An AI language tutor that runs entirely on your device. The model and every lesson are bundled in the app — it collects no data and works fully offline.
Ahead Alarm: World Clock
iPhone · Alarms & time zones
A world clock and alarm built for people who work across time zones — clean, fast, and private, with nothing tracked and nothing sent off your phone.
The same principle in everything we build.
Your data belongs on your device. Our apps run their intelligence locally — so your files, your questions, and your habits never become someone else's data.
Runs on-device
No data collected
No account required
Works offline