Measure rotational speed using flicker frequency analysis. Adjust frequency with precision up to 1000 Hz. Detect stationary motion by matching flicker rates. Control connected flashlight for testing. View frequency and RPM values in real time.
Calculate payments with weekly, bi-weekly, and monthly options. Input taxes, insurance, and utilities. Estimate interest savings from higher payments. View amortization schedules. Save and compare multiple calculations. Sync to iCloud.
Tune strings with precise frequency display in Hz. Adjust A4 temperaments between 392Hz and 466Hz. Includes tuning fork and advanced settings available via in- purchase. Features LED indicator for visual feedback and automatic string lighting.
Edit schematics, calculate values, and test circuits
Manage components with a database of resistors, capacitors, and diodes. Calculate circuit values using Ohm’s Law and power formulas. Access schematics, datasheets, and component symbols. Convert units and view component ratings.
Convert units across multiple categories with one . Add favorite conversions for quick access. Use built-in calculator for math operations. Switch between conversion types easily. No ads except special promotions.
Tune basses with real-time pitch display in Hz. Adjust A4 temperaments between 392Hz and 466Hz. Includes tuning fork and advanced settings via in- purchase. Provides LED visual feedback and auto-lights tuned strings. Supports iPhone and iPad.
Adjust strings to precise frequencies with real-time Hz display. Access A4 temperaments between 392Hz and 466Hz. Use a virtual tuning fork and advanced settings for fine-tuning. Receive visual feedback via LED indicator and lit string display.
Calculate payments with options for weekly, bi-weekly, or monthly schedules. Determine taxes, upfront payments, total amount, interest, and total cost. Adjust payment amounts and view detailed breakdowns.
Calculate hourly wage from annual or monthly and vice versa. Input payment frequency like daily, weekly, or monthly. Convert between types and view results instantly.
Measure spectrum to determine dominant in nanometers, frequency in terahertz, and period length in femtoseconds. Analyze sources to identify primary color wavelengths and associated properties.
Udio signals with adjustable parameters and frequency up to 20 kHz. Create single signals, sweeps, or merged signals. Control duty cycle, frequency, and waveform type. Export generated audio files.
Calculate earnings for hourly, daily, weekly, bi-weekly, semi-monthly, quarterly, and yearly periods. Input fixed income and estimated working time to receive accurate results. Track progress over time and adjust inputs for updated calculations.
Generate sine, square, sawtooth, and triangle tones across a wide frequency range. Adjust frequency by swiping up or down. Sweep sine frequency for hearing testing. Play tones to clean speakerphone dust and water.
Capture before/after photos of cars to document damage. AI automatically detects scratches, dents, and other issues. Generate PDF reports in under two minutes. Scan Airbnb properties to document condition before guests arrive.