Fuse - Fuse is a UX tool suite for mobile app designers and developers.
GoodBarber - GoodBarber is a mobile app creation platform.
Dropsource - Mobile development platform for building native iOS & Android apps
Bizness Apps - Create your own app or become a reseller and build apps for others
Mobidonia - Native mobile app builder for iOS, Android & Apple Watch
Shoutem - Shoutem is a platform to build, publish, and manage native apps with ease for those who want to build apps, but have no experience with coding.