Privacy Policy
Privacy Policy.
Last updated · 21 May 2026
Thank you for using Mumderground. This Privacy Policy explains how we collect, use, and protect information when you use the Mumderground mobile application (the “App”), an accessibility guide for parents navigating the London Underground with a pushchair. By downloading or using the App, you agree to the practices described in this Privacy Policy.
1. About Mumderground
Mumderground is a mobile application designed to help parents and carers travel on the London Underground with pushchairs and buggies. The App provides information on step-free access, lifts, escalators, and station layouts across the Underground network, including London Overground, the East London Line, and the DLR.
2. Information we collect
2.1 Information you provide
Mumderground is primarily an offline reference tool. We do not require you to create an account or provide personal information to use the App’s core features.
2.2 Automatically collected information
When you use the App, we may automatically collect limited technical information, including:
- Device type and operating system version
- App version and crash/error reports
- Anonymous usage statistics
- General location data (city-level only, if permission is granted) to support nearest-station features
We do not collect your precise GPS location without your explicit permission, and location data is never stored on our servers or shared with third parties.
3. How we use your information
Any information collected is used solely to:
- Improve the App’s performance and fix bugs
- Understand which features are most useful to users
- Ensure compatibility across devices and operating systems
- Improve and maintain station accessibility information
We do not use your information for advertising, marketing, or commercial profiling purposes.
4. Third-party services
The App may use limited third-party tools to support its operation, including:
- Apple App Store / Google Play Store
- Anonymous crash reporting tools
We do not sell, rent, or share your personal data with any third party for their own marketing or commercial purposes.
5. Data storage and security
Accessibility information such as station layouts and route guidance is stored locally on your device and does not contain personal information.
Any anonymous technical or analytics data transmitted to us is transferred securely and stored on protected servers only for as long as necessary.
6. Children’s privacy
Mumderground is intended for use by parents, carers, and adults. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us and we will promptly delete it.
7. Your rights
You have the right to:
- Request a copy of any personal information we hold about you
- Request correction or deletion of your personal information
- Withdraw consent to data collection at any time
- Lodge a complaint with the UK Information Commissioner’s Office (ICO)
To exercise any of these rights, please contact us using the details below.
8. Changes to this Privacy Policy
We may update this Privacy Policy from time to time to reflect changes to the App or applicable law. Any significant updates will be reflected by revising the “Last updated” date at the top of this page.
9. Contact us
Mumderground
Website: www.mumderground.com
Email: info@mumderground.com
Mumderground is an independent app and is not affiliated with, or endorsed by, Transport for London.