Privacy policy

Dhwani — Android, iPhone and Amazon Alexa · Updated 24 October 2026

What Dhwani is

Dhwani is an AI assistant you talk or type to. To answer, it sends what you ask to our servers and to the AI and search services named below. It does not sell your data and shows no advertising.

What we receive, and why

• Your questions and the answers — to answer them, and kept with the conversation so follow-up questions make sense. Short notes of things worth remembering (a plan, a purchase you mentioned) are kept so Dhwani can recall them later. Your chat history itself is stored on your phone.
• Your voice — turned into text by your phone's speech recogniser (Google on Android, Apple on iPhone). A recording is sent to our server only when the phone's reading is unclear, to be transcribed again, and is not kept.
• Photos you attach or take — sent to answer about them. When you ask for a photo to be edited or tried on, it is sent to the image service doing the edit (Cloudflare Workers AI, Hugging Face, or our GPU provider Modal) and not kept by us.
• Your account, if you sign in — signing in is optional. With Google or Apple sign-in we receive your name, email and picture, to keep your account and count daily use of the costlier features.
• Location — only while you have switched location on in Dhwani, sent with a question so answers about places near you are right.
• Calendar — read on your phone, only for questions about your day, when you allow it.
• Spotify — if you connect Spotify to make playlists, the login stays on your phone and is used only to create the playlists you ask for.
• Ratings — a 👍 or 👎 you give, with the question and answer, so mistakes can be found and fixed.
• Alexa — what you ask Dhwani on an Echo arrives from Amazon as text, with an anonymous id for your device so a follow-up ("yes, tell me") finds the right answer. Answers waiting to be heard are deleted after a day.

Who processes it

Our servers run on Vercel. Answers are written by AI models from DeepSeek, Zhipu (GLM), OpenAI and Cloudflare; web searches go through our own search server, Brave and Tavily; voices are made by Microsoft Edge text-to-speech. Each receives only what it needs for the task.

Data and credits

Answers use data from these sources, under their licences:

• Powered by TfL Open Data. Contains OS data © Crown copyright and database rights 2016, and Geomni UK Map data © and database rights 2019.
• Live trains: Powered by National Rail Enquiries (Rail Data Marketplace).
• Fuel prices: Fuel Finder, UK Government, under the Open Government Licence v3.0.
• Maps, places and routes: © OpenStreetMap contributors (Nominatim, Photon, Overpass, OSRM, OpenFreeMap), and TomTom.
• Weather: Open-Meteo (CC BY 4.0). Places: Google Places. Films and shows: TMDB (this product uses the TMDB API but is not endorsed or certified by TMDB). Reference: Wikipedia and Wikidata.
• Videos play in YouTube's own player and are subject to YouTube's Terms of Service.

How long it is kept

Conversation history on our servers is deleted once a conversation has gone 4 weeks without use; remembered notes are kept up to two years so recall keeps working, unless you ask us to delete them. Ratings are kept to improve answers.

Children

Dhwani is not directed at children under 13.

Your choices

You can clear your chats in the app, switch location off, and disconnect Spotify at any time. To delete your account and everything Dhwani keeps about you, open the menu, tap Your account (or Sign in), then Delete my account and data. Without the app, request it at chat.produktify.com/delete-account.