Keyboard Designer: Keyboard
v5.3.1 · 14.9 MB · code 186
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File information
UpdatedFeb 13, 2026
PublishedAug 15, 2021
Packagede.humbergsoftware.keyboarddesigner
Versionv5.3.1 (186)
Size14.9 MB
MD5c6c8ed2f8502e2a7eae0cfc26b16b2f0
Min SDK19
Malware scanTRUSTED
Signature SHA1A5:97:36:30:80:C7:05:8B:C6:84:79:A1:9A:87:C9:9E:92:AC:05:74
SignerCN=Gerrit Humberg, OU=All the jobs, O=Humberg Software, L=Iserlohn, ST=NRW, C=DE
Total downloads100,000
This version100,000
DeveloperGerrit Humberg
Age ratingEveryone
What's new in v5.3.1
Revisions:
- EKP: Fixed not being able to use voice input without running the Keyboard Designer in background (Thanks to ICP and Merc!)
- Words that contain @, - or ´ are now fully recognized as a word (Thanks to Eduar)
- Words that start with numbers are no longer automatically replaced if automatic correction is activated (Thanks to Mr. Schüßler)
All changes in the app or on the website
- EKP: Fixed not being able to use voice input without running the Keyboard Designer in background (Thanks to ICP and Merc!)
- Words that contain @, - or ´ are now fully recognized as a word (Thanks to Eduar)
- Words that start with numbers are no longer automatically replaced if automatic correction is activated (Thanks to Mr. Schüßler)
All changes in the app or on the website
Security scan
TRUSTED
- Developer signature verified 2026-02-13
- Signature SHA1 A5:97:36:30:80:C7:05:8B:C6:84:79:A1:9A:87:C9:9E:92:AC:05:74
- File MD5 c6c8ed2f8502e2a7eae0cfc26b16b2f0
How to install Keyboard Designer: Keyboard v5.3.1 on Android 4.4 KitKat+
Takes about 2 minutes. You'll need roughly 14.9 MB of free storage.
- Grab de.humbergsoftware.keyboarddesigner_186.apk — hit the Download button above (14.9 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 c6c8ed2f8502e2a7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find de.humbergsoftware.keyboarddesigner_186.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=Gerrit Humberg, OU=All the jobs, O=Humberg Software, L=Iserlohn, ST=NRW, C=DE. 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 Keyboard Designer: Keyboard — tap Open on the install screen, or find the Keyboard Designer: Keyboard icon in your app drawer.
Common install errors for Keyboard Designer: Keyboard
- "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 4.4 KitKat 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.