Eppi: AI Vocabulary Flashcards

Live내 손안에 작은세상4 apps · 3.1K installsEducationFree · contains adsIn-app purchases: $0.99 - $29.99 per itemapp.aivoca

Starter deck on install. AI builds English & Japanese flashcards: TOEIC, JLPT.

Alert me★ WatchOpen in Play ↗
Total installs
2,290
exact · Play shows 1,000+
Installs / day
0
7-day avg · last day 0
Rating
—★
— ratings · — reviews
Released
30 Apr 2026
5mo ago
Last update
22 Sept 2026
v2.6.1 · 22d ago
Countries
—
not checked yet

Installs per day

gain of the exact counter
05101511 Oct12 Oct

Lifetime avg ≈ 14/day (all installs ÷ days since release)

Daily tracking since 10 Oct 2026 · history grows every day

Install history

exact counter from Google Play
2,2892,2902,29110 Oct11 Oct12 Oct
05001,0001,5002,0002,50030 Apr10 Oct12 Oct

Dashed: estimate from the release date (no daily data before 10 Oct 2026) · time axis compressed before that day

Daily tracking since 10 Oct 2026 · history grows every day

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.

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
  • Shares data with third parties App activity, App info and performance, and Device or other IDs
  • Collects data Personal info and Device or other IDs
  • Data is encrypted in transit
  • You can ask for your data to be deleted

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

10 in 3 groups
2 Sensitive2 Notable6 Routine

What this app can do with your phone

  • Use your camera to take photos and record videos
  • Record sound using your phone's microphone
CameraSensitive1

Access to your camera to take photos and record video

  • Use your camera to take photos and record videostake pictures and videos · CAMERA
MicrophoneSensitive1

Access to your phone's microphone to record sound

  • Record sound using your phone's microphonerecord audio · RECORD_AUDIO
OtherNotable8

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

  • Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
  • 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 Google service settings stored on your deviceread Google service configuration · com.google.android.providers.gsf.permission.READ_GSERVICES
  • Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

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
Your own wordbook, built by AI - Eppi Words Tired of building word lists and looking up meanings by hand every time? Eppi Words lets you start learning the moment you install it, with a ready-made starter deck, and from then on AI builds your wordbooks for you. Eppi Words supports English, Japanese, and Korean wordbooks. Key Features 1. A starter deck, ready the moment you install You do not have to add any words first. A ready-made starter deck is waiting on the first screen. Notification permission is only requested when it actually matters. 2. Automatic wordbook creation that AI handles for you Just enter a word, and AI translates it and completes the meaning, phonetic symbols, part of speech, and more. It can read "text in a photo" and extract up to 30 words at once, or build an entire word set when you simply enter a topic like "travel English." No more tedious word entry! 3. "Magic Card AI" that tells you everything about a word Even when you learn a single word, learn it deeply. Magic Card goes beyond a simple definition. - Word form expansion: derived forms such as verbs, nouns, and adjectives - Common expressions: idioms and collocations generated by AI - Tailored examples: sentences you can use right away, with translations 4. Learning statistics that show your progress See how far you have come, with data. Eppi Words shows your study history by period and a learning timeline, scores each word for mastery, and lets you review only the words that are still weak. 5. Pick a voice Choose a voice from the list available at the time and listen to words and example sentences. Use it alongside your listening practice. 6. Tired of only studying? Decorate your Eppi Spend the XP you earn from studying on costumes and stickers, and decorate your own Eppi room. Study more and complete your very own Eppi! From TOEIC, TOEFL and JLPT vocabulary to hiragana and katakana, memorize by repeating flashcards. Eppi Words is for you if: - You want a wordbook tailored to yourself - You want to save an unfamiliar word straight from a photo or a book - You want to study not just meanings but example sentences and derived forms - You are learning English and Japanese together - You want to track your study history and stay motivated Subscriptions are offered as monthly and annual plans with a free trial. Full terms are shown on the subscription screen in the app. Start building your own wordbook with the adorable Eppi character today! Terms of Use https://aivoca.app/terms-en.html Subscription Terms https://aivoca.app/subscription-en.html Privacy Policy https://aivoca.app/privacy-en.html

What's new

We fixed several crashes that closed the app unexpectedly. • Fixed Kakao sign-in failing to work. • Fixed a crash on the payment screen. • Fixed freezes when moving between screens quickly. • Improved internal diagnostics so we can find problems faster.

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