Interfacer is described as 'collection of high quality free Icons, Illustrations and UI Kits created by the most talented and awesome people on the Internet. You can use all the resources for commercial projects'. There are more than 10 alternatives to Interfacer, not only websites but also apps for SaaS. The best alternative is Blush, which is free. Other great sites and apps similar to Interfacer are Freebbble (Free), Evernote Design (Free), Neede (Free) and DesignBase (Free).