Lumio Apps

Apps that work in airplane mode.

Lumio Apps makes small, useful tools that run entirely on your device. No ads, no tracking, no accounts. Free and open source.

  • CalculatorWorks
  • PocketTallyWorks
  • PaperwiseWorks

Your data never leaves your phone.

Calculator

Scientific mode, an 11-category unit converter, everyday money tools and a date calculator in one small app.

  • Android
  • Version 1.3
  • MIT license
See Calculator

PocketTally

Track daily income and expenses, set budgets, see clear stats and make PDF reports, in 13 languages.

  • Android, Windows, Linux
  • Version 0.9
  • GPL-3.0 license
See PocketTally

Paperwise

Merge and split PDFs and turn photos into PDFs, right on your phone. Your files never get uploaded.

  • Android
  • Version 0.1, new
  • MIT license
See Paperwise

What every Lumio app promises

  • Offline first

    Every feature works without internet. The only optional request is "Check for updates", which asks GitHub for a newer version.

  • No ads, no tracking

    No analytics, no accounts and no data collection. What you type stays on your device.

  • Open source

    All code is public on GitHub. Anyone can read it, build it or suggest a change.