App Intel

KeyOak - 記憶

LiveKeyOak1 app · 31 installsEducationFreecom.risukun.keyoak

Offline Japanese Dictionary & Study App

Alert me★ WatchOpen in Play ↗
Total installs
31
exact · Play shows 10+
Installs / day
—
measured after our second crawl (about a day)
Rating
—★
— ratings · — reviews
Released
9 Jun 2026
4mo ago
Last update
10 Jun 2026
v2.0.525.2 · 4mo ago
Countries
—
not checked yet

Install history

exact counter from Google Play
30.335.240.145.15011 Oct12 Oct12 Oct
30.335.240.145.15011 Oct12 Oct12 Oct

Installs per day · last 90 days

Not enough history yet — check back tomorrow

Change timeline

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.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

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

8 in 4 groups
5 Sensitive0 Notable3 Routine

What this app can do with your phone

  • Use your camera to take photos and record videos
  • 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
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
CameraSensitive1

Access to your camera to take photos and record video

  • Use your camera to take photos and record videostake pictures and videos · CAMERA
OtherRoutine3

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

  • 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
  • Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

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
KeyOak - 記憶 is an offline integrated Japanese-English Dictionary with support for Tagging and easy generation of Flash Cards to aid in the study of the Japanese language. It also supports finding words in images & full sentences, easy kanji character lookup by handwriting (desktop only) or kanji components/properties (all versions), kanji stroke order info, people/place name lookup, and a powerful search language. Features: - Japanese/English Dictionary with 327,000+ entries with example Sentences, Compound & Component words - Kanji Dictionary with 13,000+ entries including components/variants/name readings/example words - Kanji stroke order/direction diagrams to know how to correctly write roughly 6000 kanji, kana, and other characters, available from kanji entry as well from a context menu command on most text fields - Japanese Name Dictionary with 745,000+ entries of people and place names - Ability to Tag Japanese words & kanji and save User Notes - Ability to look up words found in images and full sentences - Add your own custom words, including prompts for adding entries for people and places - Quickly bulk tag from a list of vocabulary words - Ability to mark Japanese words & kanji as Unknown/Learning/Known with quick color identification - Create Flash Card sets from Tags & study them in Spaced Repetition System (SRS) or Cram modes - Browse & navigate Japanese words & kanji via built-in Tags including common words, field of interest, kanji by grade level, etc. Can quickly create Flash Cards for any of user or built-in Tag. - Handwriting input to look up words when pronunciation is unknown (requires Windows 10 Japanese handwriting optional feature to be installed from the system Language Settings; not available on Windows Phone 10) - Component-based lookup of kanji characters - Furigana (ruby/phonetic guides) can be displayed when unknown kanji appear in Flash Cards - A full Boolean query language for advanced search; search in romaji/kana/kanji; finds exact match, prefix match, component kanji/words, or extracts words from a full sentence - Ability to create Flash Card sets from custom queries - Systematic mode for marking tagged entries as unknown/learning/known - Light & Dark Theme supported - Copy or Share entries or lists of words - User data persisted outside the database for easy backup/restore; ability to change the data folder location (such as to point to a folder on OneDrive for syncing between devices)

What's new

Initial Android release.

Growing in Education

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