Productivity · App Store · JapanRed ocean
手帳
The signal here is competition saturation, not search demand. You decide; we lay out the evidence.
01
How crowded is it
saturation from top-app review concentration
result apps
20
count alone does not show saturation
top-10 review sum
2,322,623
core saturation signal
#1 app reviews
320,359
dominant incumbent?
top-10 median
72,538
review spread
local-script apps
100%
localization
stale 1yr+
0%
high means a gap
A dominant app with 320,359 reviews owns this space. Avoid a head-on fight, find a narrow gap.
02
Who is already here
top competitor apps (by search relevance)
| App | Rating | Reviews |
|---|---|---|
| Lifebear カレンダーと手帳で予定表スケジュール管理Lifebear inc. | 4.54 | 320,359 |
| スマート手帳 - スケジュール管理、仕事カレンダーアプリKomorebi Inc. | 4.49 | 26,410 |
| Cahoカレンダー かわいいスケジュール帳カレンダーLAN CHEN | 4.75 | 393,629 |
| TimeTree タイムツリー - カレンダーや予定表の共有TimeTree, Inc. | 4.61 | 1,034,606 |
| シンプルカレンダー - スケジュール帳、予定表かれんだー管理Komorebi Inc. | 4.6 | 370,422 |
| Google カレンダーGoogle LLC | 4.33 | 38,059 |
| CanJournals: 記録ノート,手帳,手賬,メモ日記Zaozao Island Technology CO., Ltd | 4.62 | 55 |
| シンプルカレンダー・スケジュール帳・手帳・予定表Futoshi Niiho | 4.53 | 18,026 |
03
What reviews complain about
from 0 competitor reviews
thin evidenceNot enough review evidence. We leave it blank instead of inventing complaints.