Waver vs SendBySound

Waver allows you to send and receive text messages from nearby devices through sound waves. This application can be useful for communicating with multiple nearby devices at once. Both audible and ultrasound communication protocols are available. The app does not connect to the internet and all information is transmitted only through sound. In order to receive incoming messages you only need to allow access to your device's microphone so that it can record nearby sounds. How to use: - Before starting - make sure the speaker of your device is enabled and disconnect/unplug any headphones. The app uses your device's speaker to emit sounds when sending a text message - To send a message - tap on "Messages", enter some text at the bottom of the screen and click "Send" - Any nearby device that is also running this application can capture the emitted sound and display the received message - In the settings menu, you can adjust the volume and the transmission protocol that will be used when sending messages. Make sure to adjust the volume level high enough, so the sounds can be picked up by other devices - Tap on "Spectrum" to see a real-time frequency spectrum of the currently captured audio by your device's microphone File sharing in a local network: As of v1.3.0 Waver supports file sharing. It works like this: - Add files that you would like to transmit by sharing them with Waver - In the "Files" menu, click on "Broadcast". This plays an audio message that contains a file broadcast offer - Nearby devices in the same local network can receive this offer and initiate a TCP/IP connection to your device - The files are transmitted over TCP/IP. The sound message is used only to initiate the network connections between the devices - Waver allows sharing multiple files to multiple devices at once

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!