TriMet's digital fare app still appears widely incompatible with the newest version of the Android operating system, which was released to the public three weeks ago.

The transit agency said Tuesday the developer of its TriMet Tickets app, the Daimler-owned Moovel North America, is working on a fix, but it still didn't have a release date for a new version.

Android users who have upgraded to Google's Android 7.0, nicknamed Nougat, report the app crashes upon startup. As a result, riders were unable to access fares saved to their device.

The Android update was released on Aug. 22, and a final preview was made available to app developers in mid-July so they could ensure their software was compatible.

TriMet said affected customers should contact the agency's tech support desk at mobiletickethelp@trimet.org.

"Users who are experiencing issues can sign-up to be a part of the app beta test group and the feedback provided will be utilized to continue to improve the app," spokeswoman Angela Murphy said in an email. "TriMet is committed to making sure all customer issues are addressed and any ticketing issues are corrected. We appreciate our customers' patience as we work through these issues."

Less than 2 percent of the app's Android users had reported issues, TriMet said.

Users are often slow to adopt new versions of Android because they're frequently tweaked by cellular carriers before released. Only certain models reliably get updates as soon as they're available.

Apple, meanwhile, released an update to its iOS operating system for iPhones Tuesday. TriMet said 1,500 TriMet Tickets users were already using the new version, iOS 10, and Moovel had not reported problems.

An update to the TriMet Tickets app in May caused some iPhone users to temporarily lose access to their fares.

-- Elliot Njus

enjus@oregonian.com

503-294-5034

@enjus