Raylex®

Giving up nail biting is not something you do on your own.

Oystershell · com.oystershell.raylex

Not rated yet 100K+ downloads v3.0.3 12.5 MB Android 7.0+ PEGI 3 · Everyone

Download APK 12.5 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v3.0.3 (30)
Updated: Nov 28, 2025 (10 months ago)
APK size: 12.5 MB
Requires: Android 7.0+ (API 24)
CPU support: Any (no native code)
Category: Education (app)
Permissions: 8
Website: oystershell.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Raylex® is an app by Oystershell in the Education category. It has no native code, so it runs on any Android processor.

Since version 2.2, the minimum Android version rose from 4.0.3 to 7.0. It asks for 8 permissions, none of them sensitive. Compared with version 2.2, it adds 4 new permissions (“Access adservices ad id”, “Access adservices attribution”, “Google Play install referrer” and “Show notifications”) and drops 3 (“Run at startup”, “Control vibration” and “Receive push notifications”).

What's new in v3.0.3

This update upgrades our app to a higher Android level and includes minor bug fixes for a smoother experience.

Description

From the listing uploaded by “appupdater”.

Giving up nail biting is not something you do on your own. Download the FREE Raylex® app to successfully kick your habit. The Raylex® app will remind you to apply Raylex®, gives you handy tips to give up nail biting, reminds you of the reward you can expect, etc. You will soon see that you are not alone. Use the app together with the Raylex® pen and it is more than likely that you will have successfully kicked the habit after 18 days.

Version history

2 versions are listed, going back to v2.2. Since v3.0.3 it requires Android 7.0+.

v3.0.3 LATEST Nov 28, 2025 12.5 MB TRUSTED v2.2 Apr 15, 2017 10.5 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Nov 28, 2025.
Certificate issued to “Oystershell” This is the certificate of the Google Play version.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Nov 28, 2025
Validated against Google Play Nov 28, 2025
Signed byCN=Raylex Oystershell, OU=Raylex, O=Oystershell, L=Leuven, ST=Vlaams-Brabant, C=Belgium
Signing certificate (SHA-1)C2:0E:89:81:32:3C:70:4E:F3:DE:08:82:50:7C:55:76:EF:32:92:CC
File MD554d5249f1c976cbbdfd2cea2a69dee1e
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 (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

Raylex® requests 8 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
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.oystershell.raylex.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Raylex® APK: questions and answers

Is there a version of Raylex® for older Android phones?

The current version needs Android 7.0 or later. Version 2.2 is the newest listed build that installs on Android 4.0.3 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 2.2 · 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 Raylex® 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 other version checked. After downloading, check that the file's MD5 is 54d5249f1c976cbbdfd2cea2a69dee1e.