Productivity · App Store · JapanRed ocean
日記アプリ
日記 アプリ
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
22
count alone does not show saturation
top-10 review sum
298,458
core saturation signal
#1 app reviews
142,558
dominant incumbent?
top-10 median
18,248
review spread
local-script apps
100%
localization
stale 1yr+
0%
high means a gap
A dominant app with 142,558 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 |
|---|---|---|
| シンプル日記 - 写真を貼れる日記帳ダイアリーKomorebi Inc. | 4.59 | 142,558 |
| 引き出し日記 - つぶやきをシンプルにタグで分類、日記をメモToastPlanet Inc. | 4.7 | 27,616 |
| 毎日まめ - 一日を記録する最も簡単な日記BlueSignum Corp. | 4.68 | 31,934 |
| muute｜AIジャーナリングで自己分析や思考の整理をしようNissay MIRAIQA Co.,Ltd. | 4.66 | 20,778 |
| SNS風日記・メモ帳 シークログ - 秘密の独り言や推し活Masashi Inoue | 4.75 | 11,848 |
| Caho日記帳 人気のかわいいカレンダー日記LAN CHEN | 4.74 | 15,718 |
| シンプル日記・シンプルで使いやすい日記アプリFutoshi Niiho | 4.54 | 6,917 |
| My日記 ～寝るまえ5分間日記帳～Anysense Inc. | 4.17 | 7,907 |
03
What reviews complain about
from 0 competitor reviews
thin evidenceNot enough review evidence. We leave it blank instead of inventing complaints.