Allows users to make calls using a standard landline phone system. Users hold their phone's speaker near a telephone handset or microphone and press a button to play DTMF tones.
by Emmanuel Tsouris★ 4.237 ratingsUtilitiesFreeData updated 2026-09-08
Generate tones, adjust frequencies, play multiple sounds
Generate tones between 20 Hz and 15000 Hz with 0.1 Hz precision. Adjust frequencies and volumes in real time. Play up to 12 tones simultaneously with independent volume control. Supports sine, square, and triangle waveforms.
Control record start/stop, audio level, and lock/unlock functions via encoded audio tones. Adjust volume on each page for easy access. Supports dynamic sound generation for remote operation.
Connect to EchoLink or AllStarLink nodes for push-to-talk communication. Browse and search node directories. Mark favorites for quick access. Requires an account with either network.
Find local beauty services, read customer reviews, and book appointments directly. Earn points for each booking and redeem them for free gifts. Manage appointments and track rewards within the .
Auto-focus and exposure adjust automatically for portraits. AI enhances depth and background blur. Use Photo Coach for real-time guidance on composition and technique. Edit photos with filters, cropping, and adjustments.
Clean speakers and headphones using sound waves to remove dust and moisture without disassembly. Perform automatic or manual cleaning with scheduled reminders. Conduct basic sound tests to check speaker functionality.
Make calls with friends and family using any device. Send an invite link to start a free face-to-face . Receive multiple phone numbers for unlimited and texting to any mobile or landline.
Translate text to code and vice versa. Type in code with on-screen keyboard. Learn code through lessons and quizzes. Convert text between code and standard format. Share code messages. Access advanced learning tools and social features.
Record calculations, customize prompts, simplify math
Perform calculations with a simplified interface and faster performance. Record and search calculation history. Customize prompt sounds and choose from multiple themes. Designed for use on iPad.
Make and receive voice and video calls using VoIP. Send and receive instant messages. Access a corporate directory for quick contact lookup. Dial extensions directly from the .
Udio tones with customizable frequency settings from 15Hz to 22KHz. Choose between sine, square, sawtooth, and triangle waveforms. Create and save custom presets. Control playback from notification drawer, lock screen, or headset buttons.
Through interactive flashcards and quick drills. Practice pronunciation with audio examples and receive instant feedback. Differentiate between similar sounds and identify correct tone usage in words.
Create and join virtual meetings with real-time video and audio. Share screens and documents. Collaborate on whiteboards. Schedule and manage meetings with calendar integration. Invite participants via link or contact.
Use optimized sound frequencies to clean phone speakers and remove buildup. Initiate one-tap mode for instant cleaning. Test performance before and after cleaning. Monitor noise levels with a decibel meter. Adjust volume safely for iPhone speakers.