SideBooks

SideBooks by Tatsumi-system Co., Ltd. is currently performing well in the Books category on the App Store, holding its all-time peak of #1 (reached on 2026-08-08) and maintaining a strong 30-day average of #3. Its best live positions are in Bhutan's Top Free charts, where it simultaneously occupies #2 (+2), #8 (-1), and #9 (-1), suggesting strong dominance across sub-category charts. Myanmar shows the sharpest upward momentum, jumping to #11 (+19) and #12 (+69), while Japan edges slightly higher to #25 (+1). Nepal is the notable weak spot, slipping to #10 (-6), and Brunei holds steady at #13 (0). Overall, the trajectory is leaning upward, with rapid gains in Myanmar offsetting softer movements elsewhere.