スマホ熱中を防ぐ『Forest』 Forest: Focus for Productivity - Apps on Google Play Stay focused on your goal or to dos and get … 2018-09-10
勉強をやる気にさせる『Studyplus』 Studyplus(スタディプラス) 勉強記録・学習管理 - Apps on Google Play Cumulative number of members exceeds 9 million! … 2018-09-09
