Send and receive text messages using waves between nearby devices. Utilize audible or ultrasound communication without internet. Messages are transmitted through and received by allowing microphone access.
Decode FT8 signals from audio or SDR sources. Support Level 1 decoding for standard callsigns or 13-character text. Generate FT8 message audio for testing. View decoded messages and metadata.
Measure levels in decibels using the device’s microphone. Display real-time audio frequency and dB readings. Apply filters for specific frequency and dB ranges. Share measurements via Messages, Email, WhatsApp, Notes, and other apps.
Generate sound waves and customize audio frequencies
Create and visualize sound waves with frequency control from 0Hz to 22,000Hz. Measure decibels to assess noise levels. Emit ultrasonic frequencies to deter insects. Toggle between light and dark interface themes.
Record code messages by tapping the key. Send recordings via the broadcast icon to friends. View realistic images and learn code through integrated lessons. No translation or interpretation features are included.
Send messages, make voice and video calls, and share photos, videos, and files. Create group chats and organize conversations with folders. Access AI features for smart replies and message editing.
Decode Morse code audio into text by accessing the microphone and placing the device near the audio source. The automatically detects frequency and speed, displaying real-time text in a bottom panel. Use the lock icon to secure the interface.
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 audio with one-touch start and stop. Save in raw and MP3 formats. Share recordings via Dropbox, WhatsApp, Google Drive, Facebook Messenger, and other apps. Email up to 5MB. Sync with iCloud.