Android 9 “Pie” is the ninth major update and the 16th version of the Android operating system.
Some of the changes and new features other than Android Oreo can be listed as below:
- Changes in Accessibility Menu, Select to Speak – OCR in Camera View, and Sound amplifier
- New features in Battery & Brightness like Battery Saver, Adaptive Battery, Adaptive Brightness, and Background Restrictions
- Multi-camera Support and External Camera Support
- Features like Do Not Support, App Dashboard, Wind Down, and App Timers in Digital Wellbeing app
- Display cutouts and Edge-to-edge screens
- Media features like Multiple Bluetooth connections, Sound delay reporting, Volume memory per Bluetooth device, HDR, HD Audio, and HEIF
- Notification enhancements for messaging
- Security & Privacy features like Android Backups, Android biometric prompt, Android Protected Confirmation, and StrongBox
- System Usabilities like At-a-Glance on Always-on-Display, Redesigned Quick Settings, Reworked Volume Controls, New system navigation, and Overview Selection
But sadly Android Pie is only available for Google devices and flagship devices from other brands.
So many developers work in porting and creation of new ROMs(OSs). Top 10 Best Android Pie Based Custom ROMs can be listed as below:
1. Lineage OS
LineageOS Android Distribution is a free and open-source operating system for smartphones and tablet computers, based on the Android mobile platform. It is the successor to the highly popular custom ROM CyanogenMod, from which it was forked in December 2016 when Cyanogen Inc.announced it was discontinuing development and shut down the infrastructure behind the project. Since Cyanogen Inc. retained the rights to the Cyanogen name, the project rebranded its fork as LineageOS.
2. AOSP Extended
AOSP Extended is an AOSP based ROM which provides stock UI/UX with various customizations features along with the Substratum theme engine. The project has been made by cherry-picking various commits from various other projects. Being based on AOSP it provides a smooth and lag-free experience out of the box.
3. Pixel Experience
Pixel Experience is an AOSP based ROM, with Google apps included and all Pixel goodies (launcher, wallpapers, icons, fonts, boot animation). Our mission is to offer the maximum possible stability and security, along with essential features for the proper functioning of the device.
4. Arrow OS
ArrowOS is an AOSP based project started with the aim of keeping things simple, clean and neat. We added just the right and mostly used stuff that will be actually USEFUL at the end of the day, aiming to deliver smooth performance with better battery life.
5. Dirty Unicorn
Dirty Unicorns is currently an AOSP based project. Started in 2012 by Alex Cruz aka Mazda out of curiosity, he never imagined seeing the success this project has today.
In the early days, this project was a one-man show. It was based off AOKP and really had no intention of being anything else. Times change and today we have a full roster of talented developers with huge support from them, developers and many folks around the community as well as a few OEMs.
DU developers are constantly setting the standard for excellence. We have many original features and stability is our main focus.
6. Cypher OS
This is Cypher. An extension to pure Android. Cypher tries to maintain the purity of Android while offering useful features for users. The goal is to give the highest level of performance whilst achieving Simplicity. This ROM is highly customizable with the most requested features. We keep our ROM clean and as close to AOSP as possible with features added. We keep your phone secure by using the latest and most up to date sources from Google.
7. Nitrogen OS
This is AOSP based ROM with almost stock look and design. Most of the developer is providing weekly updates to improve the user experience.
8. Carbon OS
CarbonROM is an aftermarket firmware based on the Android Open Source Project created with the purpose of adding versatility and customization to stock Android. Stability is our highest priority; our vision is to be the best alternative to a stock operating system for your device.
9. crDroid OS
crDroid is designed to increase performance and reliability over stock Android for your device also attempting to bringing many of the best features existent today. We’re mainly based on CyanogenMod so use custom kernels compatible with them!
In this ROM, your device will be rooted(by Magisk) by default which will basically a good option for those users who are fond of rooted apps.
10. Liquid Remix
Liquid Remix is a custom ROM reborn from the old liquid smooth based on Android’s open source project. This is one of the old ROM with great support from developers and official device maintainers. You will get almost stock experience with a lot of customization option.