Q: Why is the iOS app rated 17+?

A: Because the Apple App Store approval process is very time-consuming and unpredictable, we were worried that Apple would reject us for showing the Twitter stream for #mbta. These tweets sometimes contain language that is inappropriate for young children.

Q: How can I support OpenMBTA?

A: The more people who use OpenMBTA, the more time we'll spend developing it. So please tweet about it, demo the app for others, and give the app a not unkind review in the Apple App Store and Android Marketplace.


The idea for this mobile app was born during Open Government Hack Day at Betahouse in Central Square, Cambridge, MA on September 27, 2009.

Chris Dempsey and Joshua Robin of the Massachusetts Department of Transportation were tremendous sources of encouragement and answered lots of questions. They pushed the MBTA to open up its data and make apps like this possible.

Michael Smith of NextBus helped OpenMBTA access real-time bus data.

Eric Richmond helped create the mobile web interface for OpenMBTA.

Braulio Carreno also provided this project with useful insights into the GTFS dataset.

Hoony Youn created the Android client for OpenMBTA.

Daniel Choi created that iOS clients and the Ruby/PostgreSQL back end.

OpenMBTA is maintained by Kaja Software, a software company based in Cambridge, Massachusetts.

OpenMBTA Mobile App Privacy Policy

This privacy policy governs your use of the software application OpenMBTA (“Application”) for mobile devices that was created by Kaja Software Corporation. The Application is  provides real-time and static schedule information for the MBTA system servicing Boston and the greater Boston area. 


What information does the Application obtain and how is it used?

User Provided Information 

This Application does not ask the user to input any information.

Automatically Collected Information 

The Application may collect certain information automatically, including, but not limited to, the type of mobile device you use, your mobile devices unique device ID, the IP address of your mobile device, your mobile operating system and information about the way you use the Application. 

Does the Application collect precise real time location information of the device?

This Application uses the precise location of the device to help the user find the nearest MBTA stop and to understand how to get to navigate to their desired location. However, it does NOT collect or store this information anywhere.  


Do third parties see and/or have access to information obtained by the Application?

Only aggregated, anonymized data is periodically transmitted to external services to help us improve the Application and our service. We may share your information with third parties only in the ways that are described in this privacy statement.

We may disclose User Provided and Automatically Collected Information:


What are my opt-out rights?

You can stop all collection of information by the Application easily by uninstalling the Application. You may use the standard uninstall processes as may be available as part of your mobile device or via the mobile application marketplace or network. You can also request to opt-out via email, at privacy@applicationsite.com.


Data Retention Policy, Managing Your Information

We will retain User Provided data for as long as you use the Application and for a reasonable time thereafter. We will retain Automatically Collected information for up to 24 months and thereafter may store it in aggregate.



We do not use the Application to knowingly solicit data from or market to children under the age of 13. If a parent or guardian becomes aware that his or her child has provided us with information without their consent, he or she should contact us at  info@kajasoftware.com. We will delete such information from our files within a reasonable time.



We are concerned about safeguarding the confidentiality of your information. We provide physical, electronic, and procedural safeguards to protect information we process and maintain. For example, we limit access to this information to authorized employees and contractors who need to know that information in order to operate, develop or improve our Application. Please be aware that, although we endeavor provide reasonable security for information we process and maintain, no security system can prevent all potential security breaches.



This Privacy Policy may be updated from time to time for any reason. We will notify you of any changes to our Privacy Policy by posting the new Privacy Policy here and informing you via email or text message. You are advised to consult this Privacy Policy regularly for any changes, as continued use is deemed approval of all changes.


Your Consent

By using the Application, you are consenting to our processing of your information as set forth in this Privacy Policy now and as amended by us. "Processing,” means using cookies on a computer/hand held device or using or touching information in any way, including, but not limited to, collecting, storing, deleting, using, combining and disclosing information, all of which activities will take place in the United States. If you reside outside the United States your information will be transferred, processed and stored there under United States privacy standards. 


Contact us

If you have any questions regarding privacy while using the Application, or have questions about our practices, please contact us via email at info@kajasoftware.com