MAD — Metro Assist - Delhi
Date: 19 September 2026 (last updated on 12 Oct 2026)
In short: MAD has no accounts. It works offline. It does not send your data to any server. Everything stays on your phone.
MAD (Metro Assist - Delhi) is made by Vaibhav Bamania. It is an independent app. It is not connected to DMRC (Delhi Metro Rail Corporation), and DMRC has not approved it.
Questions? Write to: udmc.feedback@gmail.com
Location. The app uses your location to follow your journey, find which station you are at, and give you alerts on time. It asks for location only when you start or plan a journey, and only while you are using the app. During a journey, Android shows a “tracking active” notification. Tracking stops when the journey ends. Your location stays on your phone. The app does not send it to me or to anyone else.
Notifications. These are used for your stop alerts (coming close, interchange, arrived) and the “tracking active” notification.
Voice and vibration. The app speaks arrival messages using your phone’s own text-to-speech. Your phone vibrates when you arrive. The words are generated on your phone from station names.
The app saves these things on your phone only: your current or planned journey, a short summary of your last journey (stations and times), your language and theme choice, stations you used recently, and which alerts were already shown.
None of this is sent anywhere. It is deleted when you uninstall the app or clear the app’s storage in your Android settings.
No account or sign-in.
I do not collect your personal data on any server.
I do not sell or share your data.
No analytics or any kind of info-tracking tools.
The free version of the app shows ads from Google AdMob (Google LLC). To show and measure ads, Google may collect information from your phone, such as your advertising ID, IP address (which can give a rough location), device and app information, and how you interact with ads. Google may also use cookies or similar technologies. This is collected by Google under its own policies, not by me, and the app does not send your journeys or stations to Google. You can reset your advertising ID or limit ad personalisation in your Android settings. More: policies.google.com/technologies/ads
An optional monthly subscription removes the ads. Payment is handled entirely by Google Play, and I never see your card or UPI details. You can cancel any time in Google Play (Play Store > profile picture > Payments & subscriptions > Subscriptions).
Your phone’s system (Android) provides location and text-to-speech. These follow their own rules and privacy policies, not mine. I do not receive that data from these system features.
You can turn off location or notifications at any time in your phone settings.
I do not keep any of your data personally, or on my servers, so there is nothing for me to provide or delete. To remove everything stored locally by the app, uninstall the app or clear its storage.
MAD is not made for children under 13. I do not knowingly collect information from children.
If a new version changes how data is handled (for example, by adding ads or paid plans), I will update this policy before that version is released. The new date will be shown at the top.
Any questions or suggestions? You can contact me personally with any kind of query or suggestion, including questions about this policy:
udmc.feedback@gmail.com