ylih

Project Overview

ylih (your life in headphones) answers the question every headphone owner eventually asks: how many hours did a pair last before it died? The app timestamps every connect and disconnect automatically, forever, on your phone only.

It tracks lifetime hours per pair, every session, a 30-day chart, and with your purchase price a cost per hour that drops each time you wear them; pairs that report battery also get hours-per-charge trends. The app has no internet permission, no accounts, no analytics, no ads.

Item	Value
Platform	Android
Stack	Kotlin + Jetpack Compose + Room
Distribution	F-Droid, Obtainium, Releases
License	MIT

Headphones die, ylih remembers every hour they kept you company.

Key Features

• Lifetime hours: per-pair totals kept forever, retired pairs freeze and the next of the same model starts at zero
• Session log: start, end and duration of every connection, kept for good
• Listening time: optionally separate worn-on-head from hung-around-neck, counting only real listening
• Cost per hour: enter the price you paid and watch it fall with every session
• Hours per charge: for pairs reporting battery, track usable hours per charge and how it degrades
• 30-day chart: a month of usage plus a per-day breakdown
• Home-screen widgets: lifetime hours, today's total or the 30-day chart on your launcher
• Backup and migrate: manual export/import, scheduled backups to any folder, and Android system backup for new phones

Target Audience

• Headphone enthusiasts curious about real lifespan
• Users rotating between several pairs
• Privacy-first users who refuse networked analytics
• Quantified-self data lovers

Quick Start

1. Install from F-Droid or Releases
2. Connect your Bluetooth headphones as usual, recording is automatic
3. Name each pair and enter its price in the device list
4. For listening-time or wired-headphone tracking, enable detailed tracking in settings
5. Pick a backup folder and enable automatic backups when ready

Core Advantages

• Zero network: nothing uploaded, no accounts, no analytics, no ads
• Zero drain by default: the default mode runs nothing, relying on system-reported timestamps
• Trustworthy numbers: off-time never counted, crashed sessions close at the last known moment, no double counting, all pinned by tests
• 77 languages: the interface follows your system language

System Requirements

Item	Requirement
OS	Android
Permissions	Bluetooth (default); a notification for detailed tracking
Battery stats	Only for headphones that report battery to Android

Notes

• Wired needs detailed tracking: Android reports wired connections only to awake apps, enable it in settings
• Battery depends on hardware: pairs that do not report battery have no hours-per-charge section
• Play edition: tracking wired headphones there also needs Bluetooth access due to Play rules, everything else matches F-Droid