Czech grammar

Name: Czech grammar
Availability: InStock
Author: Holucent

v1.8.2 · 32 MB · code 72

ddbd565698a9ca637a67a4a1e92672ed TRUSTED

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UpdatedFeb 9, 2026

PublishedMar 20, 2021

Packagecom.holucent.myteachercz

Versionv1.8.2 (72)

Size32 MB

MD5ddbd565698a9ca637a67a4a1e92672ed

Min SDK21

ABIsx86, x86-64, armeabi-v7a, arm64-v8a

Malware scanTRUSTED

Signature SHA12A:5D:2A:E5:A6:E0:F6:43:BE:2F:47:4C:FC:68:DF:52:B0:84:6D:79

SignerCN=Jiri Holubik, O=Holucent, L=Brno, ST=Czech Republic

Total downloads100,000

This version100,000

DeveloperHolucent

Age ratingEveryone

- Added new questions

- Minor fixe and improvements

TRUSTED

Takes about 2 minutes. You'll need roughly 32 MB of free storage.

Grab com.holucent.myteachercz_72.apk — hit the Download button above (32 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
(Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches ddbd565698a9ca63…. Any difference means the file is corrupted or tampered — delete and re-download.
Open the APK — tap the download notification, or find com.holucent.myteachercz_72.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
Check the signer — the install screen will name the publisher. For this build it should read CN=Jiri Holubik, O=Holucent, L=Brno, ST=Czech Republic. If it doesn't match, cancel — you have the wrong file.
Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
Done — open Czech grammar — tap Open on the install screen, or find the Czech grammar icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).

Common install errors for Czech grammar

"App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
"Parse error" — the APK is for a newer Android than yours. This version needs Android 5.0 Lollipop or later. Pick an older build from the versions list below.
"There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.