Smart Tools - All In One is a useful kit of tools with 40+ carpenter, construction, measure and other tools and utilities. Use device's in-built sensors in all in one tool box app, useful like a swiss army knife.

Carpenter + construction tools kit:
Ruler;
Bubble level;
Laser level;
Light: Manual torch light, strobe light or a sound driven light show;
Protractor;
Magnifier.

Measure tools kit:
dB level: Measure the sound dB level and its spectrum;
Location (map) with altimeter;
Distance meter;
Stopwatch;
Thermometer;
Magnetic field meter (metal detector);
Vibration level meter;
Luminosity (LUX) level meter;
Color sensor;
Speedometer;
Compass;
Battery tester;
Network speed test;
Drag Racing.

Other useful utilities kit:
Unit, currency and size converter;
Calculator;
Code scanner: QR code and bar code;
Text scanner;
NFC scanner;
Accelerometer;
Time zones;
Mirror;
Dog whistle;
Microphone;
Metronome;
Pitch tuner;
Counter;
Random generator;
Pedometer;
Body mass index;
Period tracker;
Translator;
Notepad.

Free app with ads, option to remove it.

You can create separate shortcuts for each tool from the kit.

Tools that are sensor sensitive can be calibrated for the best tool accuracy.

Tool box supports all device brands and several languages, but not all models have the appropriate sensors to support all tools and utilities, especially from the measure kit.