WowAce

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Keeps track of gold and cash flow across multiple characters

Uses linear regression and a log of hitpoint values to estimate how long a boss has left to die and reach execute range.

Simple, light-weight, LDB-enabled timer that tracks how long you spend in combat

Inventory and bank organizer.

LDB data source displaying character stats

Replacement for default bags.

Helps you keep track of your experience.

Simple loot specialisation display with selection in tooltip.

Shows at-a-glance what raid buffs/debuffs you have.

Social tracking suite.

Allows tradeskill usage by clicking items or reagents.

Shows activity for hidden ChatFrames by making their tabs flash.

LDB display addon with one Blockoblock per plugin.

Spy on your guild.

Displays events from Calendar for upcoming week in tooltip.

Volume control panel.

Reports the total threat on a mob at the end of combat.

A total number of quests Data Broker plugin.

A FPS Data Broker plugin.