Apps like d20 Attack Calculator

Here are some great alternatives to d20 Attack Calculator by Hapero.fi :
RPG Dice Roller
RPG Dice Roller
★5.0
Nice Dice Roller 3D
Nice Dice Roller 3D
★3.5
RPG Dice Roller - Original
RPG Dice Roller - Original
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Roll Tracker - Dice D20
Roll Tracker - Dice D20
★3.7
RPG Dice Roller
RPG Dice Roller
★4.8
Mighty Dice
Mighty Dice
★4.6
WH40K: Dice Companion (Pro)
WH40K: Dice Companion (Pro)
★4.5
DnDice - 3D RPG Dice Roller
DnDice - 3D RPG Dice Roller
★4.3
Xd6 - Dice Roller
Xd6 - Dice Roller
★3.7
RollHammer: Battle Dice
RollHammer: Battle Dice
★4.5
D&D Beyond
D&D Beyond
★4.6
Game Master 5th Edition
Game Master 5th Edition
★4.0
MathHammer 40k
MathHammer 40k
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Rollplay - Character Sheet
Rollplay - Character Sheet
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Slash & Roll: Dice Heroes
Slash & Roll: Dice Heroes
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Dice Roller: Roll, shift, save
Dice Roller: Roll, shift, save
★3.2