IndieRadar
Productivity · App Store · JapanRed ocean

音声メモ

ボイスメモ音声 メモ

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
24
count alone does not show saturation
top-10 review sum
246,540
core saturation signal
#1 app reviews
195,317
dominant incumbent?
top-10 median
5,403
review spread
local-script apps
100%
localization
stale 1yr+
20%
high means a gap

A dominant app with 195,317 reviews owns this space. Avoid a head-on fight, find a narrow gap.

02

Who is already here

top competitor apps (by search relevance)

AppRatingReviews
ボイスメモiTunes K.K.4.63195,317
Notta-自動文字起こし・日本語の音声をテキスト変換Mind Cruiser Limited4.3526,109
無限もじおこし: 音声入力でテキスト変換、議事録、音声メモにHaruki Kurosawa4.585,066
音声メモアプリkento kuramoto4.31154
文字起こしさん: 音声入力でテキスト変換、議事録、音声メモにAtsushi Koyama4.68597
ディクタフォン - 音声レコーダー&ボイスメモALON Software Limited3.926,063
ショートカットメモ帳Kanako Kobayashi4.376,160
Alon Dictaphone-音声レコーダー&ボイスメモALON Software Limited4.071,169
03

What reviews complain about

from 0 competitor reviews

thin evidenceNot enough review evidence. We leave it blank instead of inventing complaints.
Data: Apple iTunes Search API + public App Store reviews (App Store · Japan) · fetched 2026.08.06 · 0 review samples (recent first, max 500/app) · analysis pre-computed in a local batch (subscription LLM), no runtime calls