SendBySound vs MorseScope

SendBySound transforms your text into sound waves, letting you share messages with nearby devices using nothing but audio. No internet connection, no Bluetooth pairing, no accounts — just pure sound. HOW IT WORKS Type your message, tap Send, and your device plays an encoded audio signal. Any nearby device running SendBySound (or listening at SendBySound.com) can instantly decode and display your message. It's like a modern-day morse code, but automatic and instant. PERFECT FOR - Sharing Wi-Fi passwords, contact info, or quick notes - Sending messages when internet is unavailable - Transferring text between devices without pairing - Tech demos and educational purposes - Situations where privacy and offline capability matter KEY FEATURES ◆ No Internet Required Works completely offline. Your messages travel through sound, not servers. ◆ No Accounts or Sign-up Open the app and start sending. No registration, no personal data collected. ◆ Cross-Platform Compatible Send messages between iPhone, iPad, and any web browser at SendBySound.com. ◆ Private by Design Messages are transmitted directly between devices via sound waves. Nothing is stored in the cloud. ◆ Multiple Sound Modes Choose between audible tones or near-ultrasonic frequencies for quieter transmission. ◆ Simple & Fast Just type, tap, and transmit. Receiving is equally easy — tap Listen and hold your device near the sender. TIPS FOR BEST RESULTS - Keep devices within a few feet of each other - Minimize background noise for clearer transmission - Use audible mode for maximum reliability - Works great for messages up to 133 characters Whether you're sharing a quick note in a meeting, sending info to a friend's phone, or just exploring a clever new way to communicate — SendBySound makes it simple, private, and fun. Download now and experience the magic of data over sound!

AUDIO AND WRITTEN MORSE • Decode live audio with automatic carrier detection. Farnsworth detection handles longer gaps, showing character and effective WPM. • Import WAV, MP3, M4A or AAC; try the sample or translate written Morse. • Play recordings with timed text. Inspect confidence and Morse, seek to characters, and correct or restore text. • Decoder Pro adds synchronized spectrograms, character alternatives, carrier tuning, character/effective WPM locks, sensitivity, and filtering, and a live waterfall. • Keep audio-decoding results in the local Session Library. Audio/graphs are not saved; light results stay in memory. APPLE WATCH AUDIO DECODER Decode Morse with the Watch microphone and read text and character/effective speeds on your wrist. Keep the app open; no nearby iPhone is needed. One Premium subscription or lifetime purchase covers iPhone, iPad and Apple Watch. LIGHT DECODER Aim the rear camera at one flashing light. Move the target by touch or accessible controls, allow calibration, and follow or copy the decoded text. Use 5–7 WPM, a steady phone and clear light. Lighting, motion and camera timing affect reception. For learning, not emergencies. Camera access starts on request; no images/video are saved or uploaded. ENCODE AND SEND Turn text into International Morse, play or copy it, and export WAV/M4A audio. Send visible Morse through Screen Flash or the rear Flashlight at up to 7 WPM, without a 60-second cutoff. Haptic output supports transmissions up to 60 seconds. Stop visible output if it causes discomfort. MORSE TREE Watch dots and dashes light up paths in Encoder and the live audio Decoder. Explore the tree with a demo or by tapping letters. In Practice → Morse Code Basics, follow, predict, build and listen without hints. Progress is saved and mistakes join Practice Coach reviews. PRACTICE AT YOUR PACE Learn with beginner lessons, Koch groups, Farnsworth spacing, callsigns, prosigns, Q-codes, QSO exchanges, custom drills, WPM ladders, and sending practice. Today's Practice uses spaced reviews. Repeat recording segments or turn decoded text into clean listening exercises with Practice this. Koch progress is preserved. FREE AND PREMIUM Free includes text conversion, beginner and Koch learning, daily practice, selected-character drills, the Send key, Callsigns, and character correction/restore. Free audio playback supports 60 seconds per transmission. Microphone and light decoding allow 30 seconds per session after the first signal lock; later signal loss does not pause that allowance. Free imported files may be up to 30 seconds. Restart to begin another free session. Premium unlocks longer audio playback and decoding, light decoding without a session time limit, WAV/M4A export, Decoder Pro, the complete Session Library, advanced coaching and history, Guided Sending, signal conditions, saved custom presets, and WPM ladders. Choose a weekly auto-renewing subscription or one-time lifetime purchase. Both unlock the same features; see in-app prices. PRACTICAL LIMITS Use a clear 300–2,000 Hz audio carrier. Imports support common uncompressed mono/stereo PCM WAV, MP3, and unprotected AAC in M4A or ADTS; protected audio and ALAC are unsupported. Premium imports support up to 60 minutes/1 GiB, and audio playback up to 60 minutes. Audio export remains limited to 8 minutes. Camera capture runs in the foreground and stops for interruptions, frame stalls, or excessive heat, including with Premium. PRIVATE BY DESIGN Core processing stays on your device. No account, ads, tracking, or analytics. Microphone samples stay in bounded memory and are discarded on Stop. Network access is used for App Store purchases and subscription management. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://whitewhalesoft.com/apps/moorsecodeaudiodecoder/privacy Support: zhaoxiaojian@hotmail.com