Blue zip locker

Digital North Star · com.best.blue.owl.lock.screen

Not rated yet 1K+ downloads v15.0 8.7 MB Android 6.0+ PEGI 3 · Everyone

Download APK 8.7 MB All versions

Same certificate as v10.0, which matches Google Play Details

At a glance

Latest version: v15.0 (150)
Updated: Aug 22, 2026 (2 months ago)
APK size: 8.7 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Personalization (app)
Listed since: Feb 20, 2020 (at least)
Permissions: 14 (2 sensitive)
Website: digitalnorthstar.fun
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Blue zip locker is an app by Digital North Star in the Personalization category, listed since at least February 2020. It has no native code, so it runs on any Android processor.

Since version 9.2, the minimum Android version rose from 4.4 to 6.0. It asks for 14 permissions, 2 of them sensitive: read phone status and identity and display over other apps. It asks for the same permissions as version 11.0. The app can read the advertising ID that ad and analytics services use.

Description

From the listing uploaded by “catappult”.

Blue zip locker is very easy to apply. Just click the Activate Lock Screen button from the main menu and the locker will be displayed every time you lock and unlock your device. The Blue zip locker offers you an in-depth personalization option. Just click on the personalization tab in the menu and you can change all of the following: • Background: pick a wallpaper for both the locker and your device background • Zipper style: customize the zipper tab to match your background or make it stand out • Row style: choose the style of your zipper with different color and shape • Font style: all the information displayed on your zipper lock screen can be changed with the font design that you like • Each time you modify something you can also click "Preview" to see how it will look when Blue zip locker is activated. Also Blue zip locker has a preview option so you can see all the changes you made and fine tune the design of the locker. This option makes it very easy to use the app, because you don’t have to make a change then exit, see if you like it and the come back to settings. You can do everything right here inside the app. With Blue zip locker you can further customize the locker. Click on the settings tab to choose the animation speed for the zipper to unfold instantly or just a bit slower. You can choose whether you want to hear the zipper sound and the vibration. The Best blue zip locker can display the Date, Time, and your battery level so you will never run out. If you prefer a clean look, you can turn all the widget options off. All you have to do now is start pulling the zipper and unlock your device in style.

Version history

6 versions are listed, going back to v9.2. Since v11.0 it requires Android 6.0+.

v15.0 LATEST Aug 22, 2026 8.7 MB TRUSTED v11.0 Aug 22, 2026 10.1 MB TRUSTED v10.0 Aug 22, 2026 9.5 MB TRUSTED v9.4 Aug 22, 2026 9.7 MB TRUSTED v9.3 Aug 22, 2026 9.7 MB TRUSTED

All 6 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “Digital North Star” This is the certificate of the Google Play version.
Same certificate as v10.0, which matches Google Play v10.0 · v9.4 · v9.3

Store checks and file details

Developer signature verified Aug 22, 2026
Signed byCN=Digital North Star, OU=Digital North Star, O=Digital North Star, L=Ilfov, ST=Romania, C=40
Signing certificate (SHA-1)03:76:96:63:B9:68:48:16:6B:A7:28:C6:1F:D1:2B:48:D1:8B:6E:B7
File MD529e4c2697e823bc3670a28ef635c16ed
Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (4 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (14)

Blue zip locker requests 14 permissions, 2 of them sensitive.

Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
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
Foreground service special use android.permission.FOREGROUND_SERVICE_SPECIAL_USE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) com.best.blue.owl.lock.screen.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

Blue zip locker APK: questions and answers

Is there a version of Blue zip locker for older Android phones?

The current version needs Android 6.0 or later. Version 10.0 is the newest listed build that installs on Android 4.4 and later. Get version 10.0 · 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 the Blue zip locker APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with the same certificate as version 10.0, whose signature matches the Google Play version. After downloading, check that the file's MD5 is 29e4c2697e823bc3670a28ef635c16ed.