Last updated: August 24, 2026
DEVELOP processes conversations on the device. What you write in the chat is not sent to us or to an external AI service: it stays on the phone. There is no sign-up, no account, we do not collect your name or email address. We do not use analytics, advertising trackers, or statistics-gathering tools.
This page explains the few exceptions, which involve features you choose to use.
The following stay on the phone and are never transmitted: the text of your conversations and their history; the photos and images you send to the assistant; the documents you add to memory; your settings and chosen language.
Model download. On first launch the app downloads the language model file from our server, from about 2.6 to 6.6 GB depending on the edition (EASY, PRO, MAXI), along with the license texts we are required to show you. On every later launch it checks whether a newer version exists. These requests contain only the name of the requested file and the app's version number, identical for every installation. They contain no data about you. As with any request over the internet, our server logs the IP address the connection comes from.
The purchase service. The app includes an optional purchase, a one-time contribution to development that does not unlock any feature. Purchases are handled by RevenueCat, a specialized provider: its library is active from app launch and generates an anonymous identifier, not linked to your name or Google account, used to remember whether you have already purchased. That provider's privacy policy is available on its website. If you don't purchase anything, no data identifying you reaches it.
The microphone. If you use voice input, the app hands the audio to your phone's speech recognition service. On most Android devices that service is Google's, and the audio is processed on its servers, under Google's own privacy policy. This is not a choice made by the app, and we neither receive nor store that audio. If you don't want this to happen, don't use the microphone button: everything else in the app works by typing.
Map search. If you open the maps page, the app loads map tiles from external providers (OpenStreetMap and Esri); if you search for a place, the text you type is sent to OpenStreetMap's geographic search service.
Weather and web page summaries. If you ask the assistant for the weather, the place name is sent to a public weather service. If you ask it to summarize a web address, the app downloads that page — the summary is then written on the device.
Services you connect yourself. The app lets you connect your own services — email, Telegram, and other work tools — by entering credentials that stay stored on the phone and are never sent to us. If you connect one of these services and ask the assistant to use it, the data needed for that action is sent to that service: for example the text of an email you ask to send, or a Telegram alert. You decide if and when. If you don't connect anything, nothing is sent.
We do not sell data. We do not share it with third parties for advertising or profiling purposes. We do not use advertising identifiers, we do not read the device identifier, we do not collect location — the app doesn't even request permission to access it. We do not use analytics or automatic crash-reporting tools.
Since everything stays on the device, you control your data: it is deleted by uninstalling the app or clearing its data from Android settings. Since there is no account, we have no copies to delete on your request. If you purchased the support contribution, a record of that purchase remains with Google and with the purchase service provider, under their own privacy policies.
The app is not directed at children and does not knowingly collect data from minors.
If we change anything in this policy, we will update the date at the top. Substantial changes will also be noted in the app's update notes.
For any question: info@developcontroller.com