What is the Roll All game, how does it work?

According to the introduction of Fryman Games, Roll All is a Role Playing game on the Android platform. There is currently a 1.1.1 version released on Jun 12, 2018, you can see the details below.

Multiple ways to Roll Dice:
Interact with your dice by pressing the ROLL ALL button, flicking your dice, or shaking your phone to roll them all.

Make them Yours:
Customize your dice with different colors or a texture in the Settings Menu.

Dice Menu:
Press and hold a die to pull up the Dice Menu. Lock or delete the die from the Dice Menu.

Locking:
Double tap dice to lock and unlock them. Locked dice cannot be rolled or deleted – a great way to save your last roll.

Calculate Dice Totals:
Click on the Collapse/Expand button to pull up the Dice List, which includes values and dice totals.

Features:
• Available sided dice: d20, d100, d12, d10, d8, d6, d4
• Lock dice to selectively roll certain dice
• Customize your dice to your liking:
◦ Choose from 127 different colors
◦ Apply a gradient texture
• Quickly calculate the total dice amount rolled using the Dice List
• Shake your phone to roll unlocked dice
• Custom settings from the Settings Menu will automatically be saved


**The outcomes of the rolled dice are randomized and not weighted in any way.

v.2.2.11
• Fix d6 typo

v.2.2.10
• Fixed issue fonts not initializing
• Fixed bug where Dice Stack button would not disable

v.2.2.9
• Increase text draw speeds
• Visually update Roll History grid
• Fix d20 nat 20 celebration particle

v.2.2.8
• Removed Special Edition feature

v.2.2.6
• Added icon to display in corner whilst saving

v.2.2.5
• Updated buttons and sliders to better respect elements in the foreground

v.2.2.4
• Fix roll modifier loading bug