Convert photos to PDF pages by selecting up to 20 images from the gallery or iCloud. Choose from 40 standard page sizes or add a custom size. Rearrange and crop photos within a customizable layout. Export the final layout as a PDF for printing.
Access detailed world maps and high-resolution regional maps of 165 countries. View administrative, topographic, and climate maps offline. Use without internet or ads. Navigate and zoom in for precise geographic information.
The app generates bass tones from 10–150 Hz to test and tune car or home audio systems. It uses pure frequencies for precise adjustments, finding rattles, and setting amplifier gain.
Analyzes device motion using accelerometers and gyroscope. Displays time series data and frequency spectra via FFT. Supports external USB accelerometer. Applies Hamming window and removes DC bias. Tracks three-axis movement with 0.02g sensitivity.
Create custom playlists from device songs. Apply real-time effects including speed change, pitch shift, 10-band EQ, reverb, and center cancel. Adjust settings via toolbar buttons for , tune, EQ, and reverb.
Visualize sound frequencies over time with a time-frequency graph. Adjust color intensity to represent sound levels. Use for analyzing vocal tones, animal calls, and identifying household noises.
Measure color temperature in Kelvin with ±2-8% accuracy. View color spectrum from 360nm to 800nm. Display RGB values and luminance. Save and export measurement data. Compare light sources side by side.
Nd play test tones including sine, rectangular, triangular, and sawtooth waves. Create and play frequency sweep tones in ascending and descending directions. Adjust frequency, amplitude, and duration settings.
Detects hidden cameras and spyware using Wi-Fi and Bluetooth network scans. Identifies suspicious devices on your network. Applies advanced algorithms to recognize wireless cameras and microphones. Alerts users to potential security threats.
Control TV and Box Player with a universal . Adjust channels, navigate menus, and cast content to TV. Mirror screen for streaming. Connect via Wi-Fi or IR for wireless operation.