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CoIsland vs ClockAura

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

CoIsland compared with ClockAura
DetailCoIsland logo CoIslandClockAura logo ClockAura
What it doesAttention is all you have Free online timers, stopwatches, pomodoros and countdowns for focus, study and classrooms
StageGrowing Startup
FoundedNot given 2024
Based inCA IN
Pricing modelPaid Free
Pricing$5.99 until October 25 (early bird), then $19.99 paid once for up to 2 Macs with a year of updates. Additional years of updates cost $5.99 each. 30-day money-back guarantee. Not given
Key features
  • 35+ connectors for code, deploys, data, tickets and on-call tools
  • Alerts displayed in Mac notch with signal filtering
  • Custom monitors with queries on user-defined schedules
  • Integration with AI agents for automated actions
  • Credentials stored securely in macOS Keychain
  • No server, direct connection to user's tools from Mac
  • Pomodoro timer with auto-cycling 25-minute work and 5-minute break intervals
  • Full-screen classroom timer with projector-friendly digits readable from across a room
  • Visual timer showing time as a shrinking coloured disc with no-numbers mode for young children
  • Online stopwatch accurate to within milliseconds with lap time tracking and export
  • Interval timer for HIIT, Tabata and EMOM workout cycles
  • World clock showing live time across 70+ cities and time zones
  • Countdown to specific date with shareable event countdown links
  • Random name picker wheel for fair student or team selection
  • Ambient focus sounds including rain, cafe, forest and white/brown noise
  • Offline functionality with browser caching after first visit
What makes it different
  • Native Mac app built in Swift for Apple Silicon, not a browser tab
  • No server architecture means data never leaves your Mac
  • Unified view across multiple workspaces and teams
  • Timers keep running in background tabs with remaining time shown in browser tab title
  • No sign-up, download or installation required—runs entirely in your browser
  • Works offline after first visit thanks to browser page caching
  • Designed specifically for classroom projection with huge readable digits
  • Completely free with no premium tier, no paywall features
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)3 +2 (up) since last check2 no change since last check
Trust Flow (Majestic)210
Citation Flow (Majestic)2213
Referring domains (Majestic)678

6 details filled in for both companies.

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