Assalaamu Alaykum. In Ayatul Kursi in the "Dua after Salaam" section, the letter waw in "Sina towala nawm" has a shadda on it, but it should just be a fatha. Also, the madd symbols on the letter "ha" do not appear clearly and are mixed into the letter itself. Finally, the small "Tau" to symbol a waqf appears two letters too early. All highlighted in the attached picture. For comparison, the correct version from the Quran App is attached.

iOS, app version 1.5

Keep up the great work, May Allah swt reward you greatly for your efforts.