This app was mentioned in 5 comments, with an average of 1.20 upvotes
It's called 'Video Games Manager' Link on the Android Store. It's alright. It seems to do the job for me. It can get a bit slow at times but I suppose thats to be expected with the size of my collection (2700ish). It has the benefit of being able to store your list of games in the cloud and on the device.
I use this app on my phone and ipad, i believe you can also update it via the site but i dont know for sure since i only use it on my ipad and android phone.
Haven't tried that site, but personally I use sort it! Apps 'video game collector' app (https://play.google.com/store/apps/details?id=com.sortitapps.videogames) as I like to be able to scan my collection by barcode via my phone camera. I think it's about £3.60 to buy the full version, might be on sale. This way it syncs with my phone and tablet as well.
https://play.google.com/store/apps/details?id=com.sortitapps.videogames
It's pretty good, you can import in and bulk scan but the bulk bit you pay for