# CommonSource Mobile App Portfolio

> The official compact overview of 16 mobile apps designed and published by CommonSource.

## Lina Chess

Run Stockfish analysis, solve more than 50,000 tactical puzzles, study openings and review complete games, all on-device.

- Category: Game
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lina-chess/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lina-chess)

## Lina Scanner

A premium on-device document scanner combining automatic perspective correction, offline OCR, full-text search and privacy masking in one capture flow.

- Category: Productivity
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lina-scanner/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lina-scanner)

## Lina Viewer

Open CBZ and CBR comics, EPUBs, PDFs, text and MOBI files, then organize local, NAS and cloud collections in one refined library.

- Category: Lifestyle
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lina-viewer/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lina-viewer)

## Ttokttoki Lina

Practice spotting manipulative interfaces through purchase-free simulations, a 19-pattern field guide, adaptive review and senior-friendly accessibility.

- Category: Education
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/ttokttoki-lina/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/ttokttoki-lina)

## LinaPad

A local-first notebook that combines PDF annotation, freeform pages and lecture recording, linking handwritten strokes to the exact moment in the audio.

- Category: Productivity
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lina-pad/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lina-pad)

## Lina Notes

A focused notebook for Apple Pencil handwriting, PDF annotation and time-linked lecture audio, organized with folders and tags in a storage location you control.

- Category: Productivity
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lina-notes/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lina-notes)

## Lina Alarm

Eight wake-up missions, including math, memory, photos, squats, steps and more, work with sleep insights to carry you from ringing alarm to a genuinely awake morning.

- Category: Lifestyle
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lina-alarm/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lina-alarm)

## DS1UOV's AI CW Radio

A CW radio simulator where retro phosphor terminals, live space-weather conditions and AI operators create an endlessly replayable QSO world.

- Category: Simulation
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/cw-radio/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/cw-radio)

## DS1UOV's Morse Trainer

Build CW reception from a small character set, unlocking the next symbol only after consistent accuracy proves you are ready.

- Category: Education
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/morse-trainer/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/morse-trainer)

## Lina OBD

Connect a Bluetooth OBD2 adapter to read live ECU data, diagnose faults and turn trip history into fuel and vehicle-health insights.

- Category: Utilities
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lina-obd/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lina-obd)

## SpeakEasy

Speak with AI partners that adapt to your level and interests, receive immediate feedback and review expressions pulled directly from your conversations.

- Category: Education
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/speakeasy/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/speakeasy)

## CaseBites

Turn selected standard precedents across seven areas of law into FSRS review cards for bar, public-service and professional exams.

- Category: Education
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/casebites/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/casebites)

## The Blackout

Enter a forbidden 2037 recovery project, reboot a legacy AI and balance resources, ethics and surveillance across 50 possible endings.

- Category: Game
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/the-blackout/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/the-blackout)

## Lawyer's Calculator

Handle litigation deadlines, multi-rate damages, lost earnings, inheritance shares and court costs in workflows shaped for legal practice.

- Category: Productivity
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/lawyers-calculator/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/lawyers-calculator)

## Fave LED

Turn a phone into a custom LED sign for concerts, airports, games and parties, with reusable templates for every moment.

- Category: Utilities
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/fave-led/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/fave-led)

## Police Exam Bites

Nine rounds of police recruitment exams, with 900 questions plus essential precedents, are scheduled by FSRS so each learner reviews exactly what is due.

- Category: Education
- Platforms: iOS, Android
- [Detailed Markdown](https://commonsourcelab.com/en/apps/police-exam-bites/index.md)
- [Official product page](https://commonsourcelab.com/en/apps/police-exam-bites)