Fine Lock (only for Samsung)

In-app purchases
4.7
50.8K reviews
10M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image

About this app

Fine Lock is a community solution. It has nothing to do with Samsung Electronics and Samsung Mobile.

Good Lock and Galaxy Labs are great official tools for customizing and optimizing Android experience on Samsung devices running official Oreo and One UI. Unfortunately, they're only available for download on Galaxy Store in a few select markets. Even if you have them installed, they may not work at all. Fine Lock is here to solve the problem by acting like a launcher for Good Lock and Galaxy Labs modules. Fine Lock does not support Samsung devices running AOSP OS build, such as LineageOS.

Due to compliance with Google Play policy, Fine Lock cannot download any modules for you. Please get the latest APK modules from a trusted source such as APKMirror or Sammobile.

PRO features:
• Module app shortcuts in home screen,
• Background check for updates,
• Hide modules that are not installed,
• Dynamic wallpaper, which changes your wallpaper based on device's Dark/Night modes. Requires Android 9 or later, and scheduled Dark/Night mode.

Before you make any purchase, please make sure you have the latest Fine Lock installed. If your PRO features are not unlocked within 60 minutes after purchase, please contact me ASAP. Make sure you give me your Order ID, which always starts with GPA. and can be found in an email from Google Play.

The app is made for Samsung devices running official Samsung's Android 8 and Android 9+ with One UI. It does not work and may crash on other models made by other brands. If you have it installed on a device made by other brands, please uninstall it.

The amazing sample screenshots are created by marik6it.
Updated on
Sep 4, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.7
49.8K reviews
Alyssa Liddy
April 6, 2022
It is a cool app but I was ready to go back to my phone's original look so I deleted the apps thinking it would change. Nope, I reset my phone settings and it only took away half of the changes I made through 'Theme Park' and 'KeysCafe'. My keyboard is still different as is the text color of my phone and the bubbles of my messages. Oh, and there is no trace of those apps being on my phone and I cannot find them in the app store again. I cannot figure out how to get rid of those settings I made.
422 people found this review helpful
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Gabriel Jasmer
May 24, 2023
Love the app, but every time i upgrade my phone i need to redownload, but the download process is very sus. It's free, but asks to enter credit card info to Install. Takes you to a 3rd party site to download apps rather than being able to download them directly in the Fine Lock app. Once the process is easier I'd highly recommend this to anyone. Verified by Samsung or not you shouldn't have to go to a 3rd party site to download Samsung apps.
86 people found this review helpful
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YUH APPS
May 29, 2023
1. No credit card is required to use Fine Lock. All payments are handled by Google Play so I don't even need and want to require your card. 2. Google Play policies forbid Fine Lock to download the modules. They have to be downloaded by users. Regards.
Jason Brooker
October 2, 2025
🔧 Fine Lock is the secret sauce for customizing Samsung devices without rooting! 🎨📱 It’s a launcher for Samsung’s hidden Good Lock modules—think UI tweaks, gesture controls, and deep system personalization. 🧩✨ No ads, no fluff, just clean access to powerful tools. 🛠️🚀 If you’re into modding your Galaxy, this one’s a must-have. 😎🔥💯
28 people found this review helpful
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What’s new

Various bug fixes.