iOS App Store · solo developers
See the market before you build the app.
Not search volume. We show competition saturation and review complaints from real data, then check whether a solo developer can actually build it. The goal is to waste less time.
Weekly report
A handful of iOS opportunities, every week.
Where competition is thin, what reviews complain about, the smallest version a solo dev can ship. No ads, real data only.
This is not a search-volume ranking. Apple does not publish App Store search volume. IndieRadar uses public, legal data (iTunes Search API, public App Store reviews) to show how crowded a space is and what users complain about. Read the limits honestly.
98 keywords·0 open gaps·data as of 2026.06.15
Open gapMid competitionRed ocean
98 · open gaps first
Photo & Video
写真整理
485,457
top-10 review sum
100%
local-script apps
20%
stale 1yr+
signal only→
Utilities
翻訳
1,245,219
top-10 review sum
80%
local-script apps
0%
stale 1yr+
signal only→
Productivity
朝活
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
背景透過
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
バーコード 読み取り
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
電池 長持ち
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
美顔 加工
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
勉強記録
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
ぼかし 加工
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
連写 整理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
名刺 スキャン
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
電卓
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
カレンダー
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
カメラ 翻訳
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
チェックリスト
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
貯金アプリ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
コラージュ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
コンパス
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
通貨 換算
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
書類 スキャン
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
重複写真 削除
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
ファイル 変換
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
懐中電灯
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
集中タイマー
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
gif 作成
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
議事録
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
習慣トラッカー
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
heic 変換
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
証明写真
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
画像 圧縮
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
画像 サイズ 変更
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
iphone 容量 増やす
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
時間管理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
簡単 家計簿
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
家計簿
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
切り抜き
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
水平器
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
メモ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
メモ帳
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
マインドマップ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
目標管理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
モザイク
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
日記アプリ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
騒音 測定
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
ノートアプリ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
お小遣い帳
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
古い写真 復元
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
音声メモ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
パスワード 管理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
pdf 変換
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
pdf 編集
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 バックアップ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 削除
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 編集
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 高画質化
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 加工
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 復元
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 スキャン
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
写真 容量 削減
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 文字入れ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
写真 pdf 化
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
ポモドーロ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
qr コード 読み取り
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
レシート 読み取り
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
リマインダー
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
ルーティン
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
定規 アプリ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
スキャナー アプリ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
スケジュール管理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
スクショ 整理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
節約アプリ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
支出管理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
習慣化
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
電波 測定
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
似た写真 削除
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
通信速度 測定
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
手ぶれ 補正
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
ストップウォッチ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
ストレージ 整理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
容量不足 解消
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
勉強タイマー
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
タスク管理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
手帳
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
手書きメモ
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
タイマー
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
todoリスト
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
文字 起こし
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
単位 変換
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
動画 圧縮
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
動画 編集
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
動画 結合
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
動画 トリミング
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
ボイスレコーダー
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Photo & Video
透かし 削除
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
wifi パスワード
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Utilities
wifi 速度 測定
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
やることリスト
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Productivity
予定管理
—
top-10 review sum
0%
local-script apps
0%
stale 1yr+
signal only→
Why we built it
I shipped an app, ran ads, and found people were not even searching for it.
I built a photo cleanup app, shipped it, and ran Apple Search Ads. The global photo cleaner keywords lost hard to giant apps, and only the local Korean term got any taps. We built this so other solo developers spend less on that kind of trial and error.