How-To Guides
Step-by-step guides to help you get the most from your smartphone.
How to Scan QR Codes on Android & iPhone
Learn how to scan QR codes on any phone. Step-by-step guide for Android and iPhone with tips for scanning from images and in low light.
How to Write NFC Tags with Your Phone
Complete guide to writing NFC tags with your smartphone. Learn what data types you can write, which tags to buy, and how to set up smart home automations.
How to Check Your Phone Specs & Device Info
Find out your phone model, processor, RAM, storage, battery health, and more. Step-by-step guide to checking device specifications on Android and iPhone.
Ultimate Unit Conversion Guide for Any Measurement
Complete guide to converting units of measurement. Quick reference tables for length, weight, temperature, volume, and more with conversion formulas.
How to Measure Sound Levels with Your Phone
Learn to measure decibel levels using your smartphone. Understand noise levels, protect your hearing, and use your phone as a sound level meter.
How to Use Your Phone as a Metal Detector
Turn your smartphone into a metal detector using its magnetometer sensor. Find studs in walls, locate hidden metals, and explore with your phone.
How to Check Your Phone Battery Health
Learn how to check your phone battery health, understand capacity degradation, and get tips to extend battery lifespan on Android and iPhone.
NFC Tags for Smart Home Automation
Set up NFC tags around your home to automate tasks. Learn how to program NFC tags for smart home control with iPhone and Android.