iPad & iPhone

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Productivity
Noise Dosimeter NIOSH & OSHA
Health & Fitness
Tool Box: goniometer & ruler
Utilities
ToolBox: AR Ruler, Level Tool
Utilities
White & Pink Noise
Utilities
Decibel : dB Sound Level Meter
Utilities

iPhone

Car Decibel Sound Level Meter
Utilities
Guitar & Ukulele Tuner
Utilities
Find a Cat
Entertainment
Light Meter - measure luminosity in lux, fc, lumen
Utilities

iMessage

Apple Watch