I am looking to use Jira on my Blackberry device, but I prefer not to use the web client via the Blackberry browser. Are there any dedicated applications or native clients that could help with this?
In my experience, while there’s no dedicated native app for Blackberry, the Jira Mobile app is available for iOS and Android. If your Blackberry supports Android apps, you could potentially install the Android version of Jira using an APK file. Be sure to verify that your device’s operating system can handle this kind of installation. It might not be the prettiest solution, but it could give you more functionality than the web client alone, with some persistence.
I can relate to wanting a native client for better performance. Though Blackberry has a more niche market, one workaround that might be worth exploring is connecting your Blackberry with remote desktop software, allowing you to run Jira on a different machine while accessing it from your device. While not natively convenient, it grants you full functionality. Alternatively, check out browser extensions for Blackberry that could optimize the web client experience, potentially making navigation smoother.
you could also try cloud-service solutions that offer Jira access, some have mobile site optimization which can be a bit smoother on blackberry. It’s not perfect, but might be faster than usual webs. sometimes you need to think outside the box with these kinds of situtations 
. Hope that helps! "}