IndieRadar
Utilities · App Store · JapanRed ocean

ボイスレコーダー

録音 アプリボイス レコーダー

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
23
count alone does not show saturation
top-10 review sum
343,390
core saturation signal
#1 app reviews
195,317
dominant incumbent?
top-10 median
5,520
review spread
local-script apps
100%
localization
stale 1yr+
30%
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
ボイスレコーダー - 高音質ボイスメモ&録音Studio Zebra4.4237,818
PCM録音Kohei Yasui4.5871,572
ボイスレコーダー・音声文字起こしJakub Bartus4.81118
ボイスレコーダー - 録音アプリ & ボイスメモLinfei Ltd.4.424,976
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
ディクタフォン - 音声レコーダー&ボイスメモALON Software Limited3.926,063
簡単ボイスレコーダーDigipom Inc.4.511,140
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