I could be wrong here, but I believe that it doesn't sync across devices because all of the data is stored in realtime on the device and not the cloud. Scuff, on the other hand for example, stores everything in the could and that's why if you lose your phone and get a new one, all of your chats and photo load right back up. This is a business decision on Grindr's part and to have them change it means they would have to overhaul how the service works. I'm still voting for this anyway.
I could be wrong here, but I believe that it doesn't sync across devices because all of the data is stored in realtime on the device and not the cloud. Scuff, on the other hand for example, stores everything in the could and that's why if you lose your phone and get a new one, all of your chats and photo load right back up. This is a business decision on Grindr's part and to have them change it means they would have to overhaul how the service works. I'm still voting for this anyway.