Caelus Duotone Icon Pack is an app by One4Studio in the Personalization category. It includes native code only for ARM 64-bit, so it won't install on phones that can only run 32-bit apps.
It asks for 13 permissions, 1 of them sensitive: approximate location. The app offers in-app purchases through Google Play.
What's new in v5.3.4
Jun 3, 2026 - v5.3.2
22 new icons
Jun 2, 2026 - v5.3.1
35 new icons
May 8, 2026 - v5.3.0
20 new icons
Apr 27, 2026 - v5.2.10
Bug fixes and stability improvements
Apr 15, 2026 - v5.2.9
5 new icons
Apr 14, 2026 - v5.2.8
Restored missing icons in catalog
Apr 13, 2026 - v5.2.7
15 new icons
Mar 25, 2026 - v5.2.6
5 new icons
Description
From the listing uploaded by “mrml”.
Caelus Duotone icon pack is a set of custom colorful linear icons with semi-transparent fill (duotone style) for your homescreen and app drawer. It can be applied on almost any custom launcher (Nova launcher, Lawnchair, Niagara, etc.) and some default launchers like the Samsung OneUI launcher (via Theme Park app), OnePlus launcher, Oppo’s Color OS, Nothing launcher, etc.
Why do you need a custom icon pack?
Unified icons make your homescreen and app drawer much prettier, and since we all use our phones a few hours per day, it will significantly improve your experience.
What do you get from Caelus Duotone?
Caelus Duotone icon pack has 4,135 icons, 20 custom wallpapers, and 6 KWGT widgets, so it’s all you need to personalize your phone how you like it. For the price of one app, you get content from three different apps. Caelus Duotone icons are linear with semi-transparent details, and the color palette is vibrant, so it goes well with dark wallpapers. Caelus Duotone icon pack is made on a 24x24 px grid with 1 px line thickness, with special attention to size for every icon, so you don't have to worry about the size or line thickness consistency.
*To apply KWGT widgets, you need KWGT and KWGT Pro apps.
What if I don’t like the icons after I buy them, or there are a lot of missing icons for the apps I have installed on my phone?
Don’t worry; we offer a 100% refund for the first 24h from when you purchase our pack. No questions asked! But, if you are willing to wait a bit, we update our app every two weeks, so there will be many more apps covered in the future, possibly the ones currently missing too. And if you don’t want to wait and you like our pack, we also offer Premium icon requests which are added in the next release from the moment you send it to us.
Some more Caelus Duotone features
Resolution of icons: 256 x 256 px
Best for dark wallpapers and themes (20 included in the app)
Alternate icons for a lot of popular apps
Dynamic calendar icon
Masking of unthemed icons
Folders icons (apply them manually)
Miscellaneous icons (apply them manually)
Tap to send icon requests (Free and Premium)
How to send an icon request for the Caelus Duotone icon pack?
Open our app and click on the Request card. Check all icons you want to be themed and send requests by pressing the Floating Send button. You will get a share screen with options on how to share requests, and you need to choose Gmail (some other mail clients like Spark, etc., have problems attaching the zip file, which is the most important part of the email). When sending an email, DO NOT delete generated zip file or change the Subject and text in the body of the email – if you do that, your request will become unusable!
Supported Launchers
Action Launcher • ADW Launcher • ADW ex Launcher • Apex Launcher • Go Launcher • Google Now Launcher • Holo Launcher • Holo ICS Launcher • Lawnchair • LG Home Launcher • LineageOS Launcher • Lucid Launcher • Nova Launcher • Niagara Launcher • Pixel Launcher • Posidon Launcher • Smart Launcher • Smart pro Launcher • Solo Launcher • Square Home Launcher • TSF Launcher.
Other launchers can apply Caelus Duotone linear icons from your launcher settings.
More info about properly using icon packs will be available soon on our new website.
Having more questions?
Don’t hesitate to write us an email/message if you have a special request or any suggestions or questions.
Email: [email protected]
Twitter: www.twitter.com/One4Studio
Telegram channel: https://t.me/one4studio
Developer page: https://play.google.com/store/apps/dev?id=7550572979310204381
Security & authenticity
Security rating: Unknown
Signing certificate
The same certificate signs apps from 28 different developersDevelopers sign only their own apps, so this almost always means the files were re-signed by someone else — often after being modified.
Uploaded by “mrml”66 followers · uploading since 2026
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (13)
Caelus Duotone Icon Pack requests 13 permissions, 1 of them sensitive.
Caelus Duotone Icon Pack APK: questions and answers
Can I install this APK over the version I already have?
Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.
Is Caelus Duotone Icon Pack free?
The APK is free to download, but the app offers in-app purchases through Google Play.
Is the Caelus Duotone Icon Pack APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Unknown. Its signing certificate is also used for apps from 28 different developers. After downloading, check that the file's MD5 is abf0b3709d72678e33d1b0ed55f4260f.