DuelEng

Name: DuelEng
Author: Erdener YAVUZ

LiveErdener YAVUZ1 app · 6 installsEducationFree · contains adsIn-app purchases: $4.09 - $49.99 per itemcom.dueleng.android

Learn vocabulary, compete in duels, and improve your English every day.

Alert me ★ Watch Open in Play ↗

Total installs: 6
Installs / day: ~0
Rating: —★
Released: 11 Sept 2026
Last update: 21 Sept 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

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.

Data safety

declared by the developer on Google Play

Shares data with third parties Location, App activity and 2 others
Collects data Location, Personal info and 5 others
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

11 in 4 groups

5 Sensitive2 Notable4 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

OtherNotable6

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

Build a stronger English vocabulary with short lessons, smart review, and real-time competition. DuelEng combines CEFR-aligned vocabulary packs with fast practice sessions and gamified progress. Study at your own pace, review words when they are due, or test yourself in ranked duels and private rooms. LEARN WITH STRUCTURE - Explore vocabulary packs from A1 to C2 - Complete one-minute lessons and focused review sessions - Practice mistakes and strengthen difficult words - Use spaced repetition to review at the right time COMPETE AND PROGRESS - Play ranked 1v1 duels - Create private rooms and invite friends - Join 2v2 matches - Climb leagues and leaderboards - Track XP, streaks, quests, badges, and daily progress STAY CONNECTED - Add friends and chat in the app - Block or report users when needed - Receive reminders for reviews, streaks, hearts, and matches DuelEng supports multiple interface and answer languages. Some features require an internet connection and a DuelEng account. Premium subscriptions unlock additional vocabulary packs and unlimited hearts. Rewarded ads may be available for eligible free users. Terms: https://www.dueleng.com/legal/terms/ Privacy: https://www.dueleng.com/legal/privacy/

What's new

• Onboarding now explains smart review, pack selection, and duels more clearly. • Improved messaging, Premium screens, scrolling, answer layouts, and mastery summaries. • Performance and reliability improvements.

Growing in Education

Category →