脳速算

Name: 脳速算
Author: Karin Lab

LiveKarin Lab5 apps · 69 installsCasualFree · contains adscom.karin.lab.Flashmentamath

Inspiration & speed battle! Calculation game to train your brain

Alert me ★ Watch Open in Play ↗

Total installs: 7
Installs / day: 0
Rating: —★
Released: 22 Jun 2025
Last update: 16 May 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
No data collected

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

12 in 4 groups

6 Sensitive2 Notable4 Routine

What this app can do with your phone

Record sound using your phone's microphone
Read photos, videos, and other files saved in your phone's shared storage
Add, change or delete photos, videos and other files in your phone's storage
Show its own windows or bubbles on top of other apps you are using

Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

StorageSensitive2

Access to files, photos and media saved on your phone's storage

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

MicrophoneSensitive1

Access to your phone's microphone to record sound

Record sound using your phone's microphonerecord audio · RECORD_AUDIO

OtherSensitive7

Access to miscellaneous device features that don't fit other categories

Show its own windows or bubbles on top of other apps you are usingdraw over other apps · SYSTEM_ALERT_WINDOW
Change volume and choose which speaker or headset plays soundchange your audio settings · MODIFY_AUDIO_SETTINGS
Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Make your phone vibratecontrol vibration · VIBRATE
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Read more · all 12 permissions Show less

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

脳速算は、フラッシュ暗算やスピード計算で計算力と瞬発力を鍛える脳トレゲームです。シンプルだけど奥が深い計算チャレンジに挑戦し、スコアをどんどん更新しよう！遊び方＆特徴・フラッシュ暗算モード – 順番に表示される数字を計算して答えよう！・速算モード – 制限時間内にできるだけ多くの計算を解いてスコアを競おう！・難易度が選べる – 初級から上級まで、自分に合ったレベルで挑戦可能！・スコア記録機能 – 異なるモードや難易度ごとにスコアを確認し、自己ベストを目指せる！・今後も新モードを追加予定！ – さまざまな計算チャレンジを楽しめるようアップデート予定

What's new

・効果音を追加しました・フラッシュ暗算のスコア履歴と正答率を表示するようになりました・難易度表示を「初級・中級・上級」に統一しました・軽微なバグを修正しました

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