a screenshot of the app asking: how are you doing today? Iam feeling fine thanks for asking! With icons at the bottom that show. a Microfone, a database, a question mark, a cog wheel, and a keyboard. On the upper right corner there is a rounded button with an arrow to the right

Flarelines

Track your chronic illness journey, your way, your device.

Living with chronic illness means good days and bad days. Remembering symptoms for doctor visits is hard when you're exhausted. Flarelines helps you journal your symptoms with voice-first input and on-device AI that keeps your health data private.

Flarelines is a research artifact of the master studies of Fabian Morón Zirfas @University of Applied Sciences Potsdam, Germany about on edge device usage of small language models (SLM) for symptom diary patient-reported outcome measures (PROM). Learn more about the research or join the beta.

Artificial Intelligence (AI) Disclaimer

This project was developed using AI and spec-driven development. There are still humans in the loop. Due to the complexity and the different domains this project is touching not every line of code could be reviewed by an expert. We still tried to have the user's privacy in mind with every decision we made.

Features

Voice-first. Tap the microphone, speak naturally. For days when typing feels like too much.

AI scoring. On-device AI analyzes your entries and suggests activity scores (0–3). All processing happens locally—your words never leave your phone.

Doctor reports. Generate summaries for healthcare providers. See patterns, identify flare-ups.

German and English localized. With the

Privacy

Your health data is stored only on your device. No cloud sync, no accounts. Export when you want, delete when you want. We use Telemetry Deck to collect anonymized usage patterns. See our privacy statements.

Contribute

If you want to contribute to the project, you can share your journal entires and scoring with us so we can train the model even further to generate better results.

Feel free to contact us if you have suggestions, ideas or questions.

If you are code savy join us on GitHub. The app is Open Source