Smart Tools - Multipurpose Kit

Smart Tools is an all-in-one toolbox with 102 handy tools in one app. Measure with your phone's sensors and camera, calculate, convert units and currencies, scan QR codes and text, and more. Every tool is free to use.

⭐ Popular tools
🔦 Flashlight with SOS, plus a screen light
📷 QR code and barcode scanner
🧮 Scientific calculator with history
📏 Unit converter for length, weight, temperature and more
💱 Currency converter for 162 currencies, rates updated about once a day
🧭 Compass, bubble level, ruler and protractor
🔊 Sound meter in decibels (dB)
🔤 Text scanner (OCR) and offline translator

✨ Made for everyday use
• Search, favorites and recent tools on Home
• Home screen widgets and Quick Settings tiles
• Light, dark or pure black theme, with your choice of color and font
• Use it in 57 languages

🧰 All 102 tools in 9 groups
📐 Measure: Compass, Bubble Level, Protractor, Ruler, AR Measure, Sound Meter, Light Meter, Vibrometer, Metal Detector, Pedometer, Speedometer, Altimeter & Barometer, Color Picker, Height & Distance
🔦 Light & Safety: Flashlight, Screen Light, Screen Flash, Morse Signal, Safety Siren, Location Beacon, Magnifier, Mirror
🧮 Calculate: Calculator, Percentage, GST / VAT / Sales Tax, Loan & EMI, Fuel Calculator, Electricity Bill, Energy Consumption, Gold & Jewelry Price, Square Footage, Age Calculator, Date Calculator, BMI, Tip & Split, Discount, Unit Price Compare, Savings & Interest, Time Calculator, Calorie Needs (BMR/TDEE)
🔄 Convert: Unit Converter, Currency, Cooking Measures, Number Base, Binary, Number, HEX ↔ RGB, Time Zone Converter, World Clock, Aspect Ratio, Shoe Size, Clothing Size, Hat Size, Ring Size, Number to Words, Roman Numerals, Unix Timestamp
➗ Math & Science: Linear Equations, Quadratic Equation, Cubic Equation, Expression Evaluator, Permutation, Combination, Random Number, Periodic Table
⚡ Electronics: Resistor Color Code, Inductor Color Code, Ohm's Law, AWG Wire Gauge, Signal Generator, LED Resistor & Voltage Divider, Capacitor Code
🎵 Sound & Music: Piano, Metronome, Audio Recorder, Text to Speech, Dog Whistle, Tuner, Spectrum Analyzer, Hearing Frequency Test
📝 Text & Scan: QR & Barcode Scanner, QR Generator, Cryptography, Morse Converter, Text Converter, Text Scanner (OCR), Offline Translator, Word & Character Counter, Password Generator, Hash & Base64, Teleprompter
📅 Daily: Notes, Counter, Stopwatch, Calendar, Image Compressor, Battery Info, Countdown Timer, Decide: Dice · Coin · Wheel, Device Info, Screen Test, Interval & Focus Timer

Tools that need hardware your phone doesn't have, such as a flash, don't appear. Most tools work offline. Readings are estimates, and health tools aren't medical advice.

💎 Free and Pro
Every tool is free, with ads. Smart Tools Pro removes the ads and adds:
• Pro features in 23 tools, such as PDF loan schedules and rate history charts
• Unlimited history, with CSV and PDF export
• Any accent color
Choose a monthly or yearly subscription, or Lifetime: one payment, future Pro features included. Subscriptions renew until you cancel them in Google Play.
Had Premium in the old version? It's now Lifetime. If it's missing, tap Restore purchases in Settings, using the Google account you bought it with.

🔒 Privacy
• No account or sign-in
• Tools ask for permissions only when needed, and use the camera, microphone and location only while open
• Camera images, sound and precise location are processed on your phone, and sent only when you share them
• The free version shows Google ads, which collect data such as your advertising ID, approximate location and app interactions. Google's scanning, translation and Play services also send diagnostics. See Data safety. Pro and Lifetime make no ad requests.

📩 Questions or ideas? Email [email protected]