Toolbox Blocks

About

Toolbox Blocks: 21 everyday tools in one app — and blocks to build your own. Stop installing a separate app for a flashlight, a sound meter and a currency converter. Toolbox Blocks puts the tools you reach for every day in one clean place. No sign-up, just open and use. BLOCK TOOLS: BUILD YOUR OWN Can't find the exact calculator you need? Snap one together. • No coding — each block does one small thing: ask for a number, work out a value, show a result • Scan barcodes, read and write the clipboard, make QR codes, play a beep, read sensors • Tools built only from calculation blocks update live as you type • Ready-made examples — fuel economy, BMI, scan & convert — to add and tweak • A step-by-step illustrated guide: build a BMI calculator from just four blocks SOUND TOOLS • Speaker Test: left/right channels, white noise, 20Hz–20kHz sweep • Speaker Cleaner: a 165Hz tone pushes water out of your speaker • Tone Generator: any frequency from 20Hz to 20kHz • Sound Meter: measure ambient noise in dB SENSOR TOOLS • Flashlight: turn on the camera flash with one tap • Compass • Spirit Level • Metal Detector: find metal with your phone's magnetometer • Vibration Meter CALCULATORS • Unit Converter: length, weight, temperature, area, volume, speed • Currency Converter: live rates, with the last rates cached for offline use • BMI Calculator • Tip & Bill Split • Discount Calculator • Loan Calculator • Date Calculator: days between dates and age EVERYDAY HELPERS • Stopwatch with laps • Countdown Timer • Password Generator • QR Code Generator • Random Tools: coin flip, dice, random number, picker ALSO • English and Traditional Chinese, following your system language • Camera and microphone permissions are asked for only when you open those tools; audio is processed on your device and never stored or uploaded • Prefer no ads? Buy "Remove Ads" once in Settings, and restore it on a new phone