BuilderBell

Uses Android's low-level AlarmManager setExactAndAllowWhileIdle to wake your device down to the minute a builder, laboratory research, or pet house upgrade finishes. Includes an optional idle nudge if a builder sits unassigned for over an hour.

Your game credentials never leave your custody. BuilderBell parses the official in-game Data Export text from your clipboard (Settings → More Settings → Data Export → Copy) with single-tap clipboard detection and instant Undo safety.

Deterministic progression algorithms compute your exact completion percentage for your current Town Hall level, project the calendar date you will reach max, and identify whether your builders, laboratory, or pet house are your primary bottleneck.

Monitor your village timers directly from your Android home screen. Live Glance widgets display available builders and upcoming finishes without needing to launch the application.

Seamlessly manage multiple Clash of Clans accounts. Track Home Village and Builder Base timers simultaneously, and group your accounts with custom labels and clan affiliation.

Generate clean, styled graphic cards showcasing your Town Hall level, max progress, hero levels, and finish milestones to share directly with your clanmates on Discord or WhatsApp.