IndieRadar
Utilities · App Store · JapanRed ocean

電卓

計算機でんたく

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
182,356
core saturation signal
#1 app reviews
2,191
dominant incumbent?
top-10 median
6,971
review spread
local-script apps
90%
localization
stale 1yr+
20%
high means a gap

A dominant app with 2,191 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
計算機iTunes K.K.3.212,191
電卓₊Impala Studios B.V.4.488,050
電卓 - Desktop Mate WidgetsKK Infiniteloop4.524
計算機+ 式が見える電卓MASANORI SHIBUYA4.3945,529
シンプル 電卓 +tasser gyati4.357,369
RealCalc: 楽しい電卓スキンRodrigo Belloso00
関数電卓 PanecalNoriyasu Kutsuzawa4.586,572
万能電卓:多機能計算機Cleveni Inc.4.4321,199
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