Hi, I use Maven, but on an iPhone. I don’t have a Tripletek tablet, but I suspect that is an Android device? If so, then I think you will struggle, as right now, I don’t think Maven works on Android devices, it’s iOS only.
I do believe the developer is working on an Android version, but it’s not available yet. So even if you could transfer the app to the Tripletek, I don‘t think it would work, due to the different underlying operating system. But good luck all the same.