Slidr (free trial, then $4.99)PipiriPipiri comes with lots of settings to customize. Haptyk (free trial, then $8)StealthyStealthy can jump into action automatically during video calls. Stealthy (free trial, then $12.99)GestimerYou're able to customize Gestimer in a number of different ways. Gestimer (free trial, then $6.99)UnclackSave others from your typing sounds with Unclack. Credit: LifehackerUnclack is both simple and useful: It mutes your microphone when you're typing (even more helpful if you've installed Haptyk, above).