ChronaFlow

App for measuring Subjective Time Perception

ChronaFlow is a simple web/mobile app for running short tests that measure how people feel and estimate time. You take quick tasks, get immediate feedback, and can track how your perception changes over time.

Features

• Three test types targeting different aspects of subjective time perception
• History view for checking past scores
• CSV export for digging into your data
• Optional notes for adding context to specific test runs

Available Tests

Regularity Test

You tap every second, trying to stay as close as possible to a stable rhythm. Good for checking the consistency of your internal clock.

Passive Test

You watch an object for a random amount of time, then guess how long it was shown using a slider.

Active Test

You see an object for a random duration, then try to recreate that duration by holding a button.

Installation

Prerequisites

• Node.js 18+
• Yarn or npm

Setup

1. Clone the repository:

   git clone https://github.com/AGH-Skylink/chronaflow.git
   cd chronaflow

2. Install dependencies:

   yarn install

3. Start the app:

   npx expo start

4. Open it on your device:

   • Scan the QR code via Expo Go (Android) or Camera (iOS)
   • Or open it on your local network at port 8081

License

Licensed under MIT — see the LICENSE file.

© 2025 AGH Skylink. All rights reserved.