Meet Your New ROM

From the original creator of Miix and Prime comes Ultima, the coolest OneUI ROM for Samsung MSM8916 devices.

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See why Ultima is your next ROM to install.

Powered by Android Go

Ultima is light and fast thanks to the Android Go program. Apps take less space, saves your data, and saves your battery.

Beautifully One

Ultima follows Samsung's latest One UI guidelines. Rounded corners, easier one-handed use, and the beauty of dark mode (coming soon).


From icons, design, to the lock and home screen. Ultima is beautiful and elegant inside out.

Updated and Ported Apps

Thanks to a lot of contributors to the project, Ultima includes authentic Samsung apps from the latest Galaxies.

Truly Flexible

Ultima is the most flexible ROM yet, with theming, icon, plugin, and wallpaper options out of the box. Not to mention Magisk support on the get-go, adding more possibilities of modding Ultima to your liking.

Updated Direct

Like its heritage, Ultima updates over-the-air with the only things it needs, saving your data, space, and time.


See the coolness of Ultima even before installing!

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About Ultima

Ultima is a TouchWiz-based ROM that brings newer experiences on an old, stable software. A spin-off from a very hopeful "The Hedge Project", Ultima is a revival of Hybrid Development Team's most popular ROM, Miix.

Like the project's codename, 'Project Shadow', and the character of the same name from the Sonic the Hedgehog franchise, Ultima's base is old, but remains strong to look young.

Ultima will never be possible without every one who has supported the project since Gracified Hybrid (and you!). Thank you so much!

TenSeventySeven, Developer

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Download Ultima today.

All current builds have to be manually updated due to server issues.

Samsung Galaxy Grand Prime Duos

6.2.2 Dauntless Doom (1577406714)

Samsung Galaxy Grand Prime Duos

6.2.2 Dauntless Doom (1577410958)

Samsung Galaxy Grand Prime
(SM-G530H - XXU/XXS)

6.2.2 Dauntless Doom (1577414543)

Samsung Galaxy Grand Prime LTE
(SM-G530F - XXU/XXS)

6.2.2 Dauntless Doom (1577418077)

Samsung Galaxy Grand Max Dual-SIM

Coming soon

More models coming soon!


Supersize your Ultima installation with these plugins. Simply install using TWRP or any custom recovery.

Google Apps

Add Google Play Services. Also includes Google Go and YouTube Go.


Lighter Google alternative. Includes NLP support.


Bixby-themed SVoice app. Includes Samsung TTS.

Aurora FOSS

Awesome-looking FDroid client. Includes Aurora Services.

Aurora Store

Awesome-looking Google Play client. Includes Aurora Services.

AllShare/Wi-Fi Direct

Add Wi-Fi Direct sharing support to Ultima.