Your privacy is important to us. This privacy policy explains how Likely Labs Ltd handles information in our app, Undertone.
Undertone does not collect, store, or transmit any personal information or usage data. There are no accounts, no sign-up, and no servers. The app operates entirely on your device and over a direct, local peer-to-peer connection between nearby devices.
Your voice is transmitted directly between the devices in your room over a local peer-to-peer network connection. Audio is never recorded, never stored, and never sent to any server — ours or anyone else's. When you leave a room, nothing persists.
The display name you choose and your audio preferences (including any saved room numbers) are stored only on your device. Your display name is shared only with the people in your room, over the local connection, for the duration of the conversation.
Undertone asks for the permissions its features need, and nothing more: the microphone to share your voice with your room, the local network to find and connect to nearby devices, Bluetooth only to check whether Bluetooth is turned on, so Undertone can tell you when your AirPods can't connect (it never scans for, pairs with, or identifies Bluetooth devices), the camera solely to scan a friend's room code, and Nearby Interaction (on supported devices) to measure the distance and direction to friends' phones for the in-room radar. Distance and direction are used on your device; when spatial audio (Sound Stage) is on, a left/right pan value derived from direction is sent to the host's phone over the local link so voices can be placed in stereo. Nothing is stored, nothing is sent to any server, and Undertone never accesses GPS or your geographic location.
Undertone does not include any third-party analytics, advertising, or tracking services.
Audio travels only over the direct local link between devices in your room and never crosses the internet. When you join by scanning the host's QR code (or a shared link), your voice is encrypted between your phone and the host's phone using ChaCha20-Poly1305 provided by Apple's CryptoKit. The host's phone mixes the room's audio, so this is not end-to-end encryption. Joining by typing the 4-digit code is not encrypted, and the room shows "Not encrypted" to everyone in it. If a member opts in to extend the room's range, audio relayed through their phone stays encrypted in transit against anyone outside the room; every member of an encrypted room, including a relaying member, holds the room key. Joining any room still requires the room code (or QR) and physical proximity to the host.
We may update this privacy policy from time to time. Your continued use of the app after any changes will be regarded as acceptance of the updated policy.
Likely Labs Ltd
hello@likelylabs.com
This policy is effective as of 23 October 2026.