# App collection brainstorming ###### tags: `Revenue` `Brainstorming` ## Overview The Grey Software App Collection (**GSAC**) One of Grey software's key objectives is to generate sustainable revenue. We see an excellent opportunity for this by offering a subscription for accses to premium features within a collection of open source software apps called the GSAC. Subscription collection of free and premium version software. The subscriptions will be carried out through Github sponsors. Apps in this collection will have free and premium versions with features exclusive to subscribers. It gives people chance to support open source software while getting valuable tools and apps in return!