A+ 成績表
https://apps.apple.com/jp/app/id1214743946

Picky - Grocery Shopping List
https://apps.apple.com/jp/app/id1098716548

Saterra Geography
https://apps.apple.com/jp/app/id1168940059

いずれもApp内課金無料
今日あたりからクリスマス値下げが続きそう？