Smartphone Remote via Bluetooth

I am creating a travelling Pi Zero W to take with me on vacations with the source being a USB drive. Since CEC will not be guaranteed, I am looking for other remote options without having to bring additional hardware along. Now I have been able to get Kore working with a hotspot enabled on my phone, but I am wondering if anyone has been able to get a bluetooth remote app working with Kodi. Pairing my phone usually results in a failed connection and I have tried a few random bluetooth remote apps that see the Pi, but have not been able to connect to it.

Current version is OSMC April 2017 and phone is a Moto G 5th generation (Android 7).