BullDozer — Privacy Policy
Last updated: 27 September 2026
BullDozer is a free app and website that turns public statistics into charts, country profiles, maps and a data quiz. It is designed to work without accounts and without collecting personal data.
Data we collect
The app does not ask for a name, email, phone number or login. We do not use analytics, advertising or third-party trackers inside the app. The one thing that leaves your device is a question you choose to ask in Ask AI — see below.
Ask AI
When you pick a country in Ask AI, or type a question there, the country and the question are sent to our server at bot.azenha.ai to produce an answer. The server passes them, with that country's published figures, to an AI provider — Anthropic (Claude) or Cloudflare Workers AI — only to write the answer, under that provider's API terms. We do not store your questions or the answers. Your IP address is used for a per-minute limit on questions and is not kept. Nothing is sent unless you open Ask AI and choose a country.
Data stored on your device
Your favourites, quiz progress and theme preference are saved locally on your device only. Public datasets are cached locally so the app works offline. This information never leaves your phone and is removed when you uninstall the app.
Network
The app downloads public data files from azenha.ai/bulldozer. These are simple file requests and include no personal information. Opening a source or story link launches your browser and is subject to that site’s own policy.
Telegram bot
If you press Watch in our Telegram bot, it stores your Telegram chat id and the country or figure you chose, so it can message you when they change — nothing else about you. Stop watching deletes it.
Notifications
Any reminders are scheduled as local notifications on your device. No notification data is sent to a server.
Children
The app is suitable for all ages. It does not ask for or store personal data from anyone.
Changes
If this policy changes, the updated version will be posted on this page.
Contact
Questions? Email [email protected].