Czech Grammar: Declension Quiz

Learn Czech grammar: practise cases, noun and adjective forms, and conjugation.

Alex Usharovski · com.usharik.app

Not rated yet 10K+ downloads v3.135-adfree 13.8 MB Android 9+ PEGI 3 · Everyone

Download APK 13.8 MB All versions

Signature matches the Google Play version Details

Watch the Czech Grammar: Declension Quiz trailer on YouTube

Czech Grammar: Declension Quiz screenshot 1

Czech Grammar: Declension Quiz screenshot 2

At a glance

Latest version: v3.135-adfree (435)
Updated: Oct 6, 2026 (4 days ago)
APK size: 13.8 MB
Requires: Android 9+ (API 28)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Education (app)
Listed since: Apr 22, 2022 (at least)
Permissions: 13
Website: github.com/usharik/CzechDeclensionQuiz
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Czech Grammar: Declension Quiz is an app by Alex Usharovski in the Education category, listed since at least April 2022. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 3.106, the APK shrank from 46.7 MB to 13.8 MB. Since version 2.10, the minimum Android version rose from 4.4 to 9. It asks for 13 permissions, none of them sensitive. Compared with version 3.131, it adds 1 new permission: “In-app purchases”. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v3.135-adfree

• New: remove ads forever with a one-time purchase in Settings • Ukrainian and Vietnamese translations for all 2,000 words • Dragged forms now land exactly where you release them • The ad banner no longer shifts the table while you drag

Description

From the listing uploaded by “appupdater”.

Learn Czech grammar by doing it. Czech Declension Quiz drills the forms that make Czech hard: the seven cases in singular and plural, noun and adjective declension, adjective agreement and verb conjugation. Three word classes, one app • Nouns: 912 words with gender, declension pattern and translation • Adjectives: 506 words, always practised together with a noun so you learn agreement (mladý muž → mladého muže, jarní noc → jarní noci) • Verbs: 581 words with the present tense, past participle and imperative, plus aspect pairs (dělat / udělat) • Phrases: decline an adjective and a noun together after bez, ke, vidím, o, s Two ways to practise • Full table: drag every form into its place in the declension or conjugation table • One form at a time: pick the right form, case by case or person by person Learn from your mistakes Every word you get wrong goes to your mistakes list. Review it until it's empty. Grammar handbook Declension patterns for nouns (pán, hrad, žena, město and others), hard, soft and possessive adjectives, and the main verb groups, with short grammar tips: stem softening, the imperative, the past tense with jsem / jsi. Stay motivated • Daily goal with points and a streak • Optional daily reminder • Filter nouns by gender The interface is available in English, Czech, Russian, Ukrainian, Belarusian, German and Vietnamese. Translations of the words are in Russian, English, Ukrainian and Vietnamese. Free with ads: banners and occasional full-screen ads. An optional one-time in-app purchase removes all ads for good. No account needed, and the quizzes work offline.

Version history

7 versions are listed, going back to v2.10. New versions arrive here about every week. Since v3.106 it requires Android 9+.

v3.135-adfree LATEST Oct 6, 2026 13.8 MB TRUSTED v3.131 Oct 3, 2026 13.6 MB TRUSTED v3.127 Oct 2, 2026 13.3 MB TRUSTED v3.122 Sep 8, 2026 13.1 MB TRUSTED v3.118 Aug 31, 2026 46.8 MB TRUSTED

All 7 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 6, 2026.
Certificate issued to “home ltd” This is the certificate of the Google Play version.
Same certificate as the 6 other versions checked

Store checks and file details

Developer signature verified Oct 6, 2026
Validated against Google Play Oct 6, 2026
Signed byCN=Aleksei Usharovskii, OU=home ltd, O=home ltd, L=Prague, ST=Czexh Republic, C=42
Signing certificate (SHA-1)C7:B5:75:D9:35:E2:F1:F4:F0:43:10:1D:1E:5D:46:8F:3D:D1:3C:8C
File MD5ffc0439d6826f398c01a3808d4345965
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (13)

Czech Grammar: Declension Quiz requests 13 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.usharik.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Czech Grammar: Declension Quiz APK: questions and answers

Is there a version of Czech Grammar: Declension Quiz for older Android phones?

The current version needs Android 9 or later. Version 2.10 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 2.10 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is Czech Grammar: Declension Quiz free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Czech Grammar: Declension Quiz APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 6 other versions checked. After downloading, check that the file's MD5 is ffc0439d6826f398c01a3808d4345965.