Between, the app for couples, has just added a significant upgrade to help couples express their feelings. Between has added stickers (animated emoticons) to the usual instant messaging features, which will be provided free.

The sticker store with more sets of stickers will launch in early December. Between isn't just limited to instant messaging, it also has a photo album for users to post their photos. Users can also add special days on to the reminder feature, so they don't forget important dates.

Since its open-beta launch in November 22, 2011, Between now has more than 1.75 million downloads worldwide.

Between is now available in 13 languages, and supports both iPhone and Android.