diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
 # LightHelper
 
 We are going to build a platform for GiveLight's volunteers to participate in projects and GiveLight's admins can easily keep track over the time.
+
+
+# Backend 
+We decided to use Ruby on Rails to supply API for the mobile app.
+
+# Mobile App
+We decided to use ionic framework to build the hybrid app.