Apps like d20 Attack Calculator

Here are some great alternatives to d20 Attack Calculator by Hapero.fi :
RPG Dice Roller - Original
RPG Dice Roller - Original
★4.6
Roll Tracker - Dice D20
Roll Tracker - Dice D20
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Roll My Dice: Custom Dice
Roll My Dice: Custom Dice
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RPG Dice Roller
RPG Dice Roller
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Game Master 5th Edition
Game Master 5th Edition
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Mighty Dice
Mighty Dice
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Risk Battle Simulator
Risk Battle Simulator
★4.5
Dice
Dice
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WH40K: Dice Companion (Pro)
WH40K: Dice Companion (Pro)
★4.5
DnDice - 3D RPG Dice Roller
DnDice - 3D RPG Dice Roller
★4.3
d20 Character Sheet
d20 Character Sheet
★3.7
Xd6 - Dice Roller
Xd6 - Dice Roller
★3.7
Delve: through the dungeons
Delve: through the dungeons
★3.3
D&D Beyond
D&D Beyond
★4.6
MathHammer 40k
MathHammer 40k
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Rollplay - Character Sheet
Rollplay - Character Sheet
★3.4