Apps like Game Master Helper

Here are some great alternatives to Game Master Helper by MobileMarketResearch :
Game Master's Toolkit 5e
Game Master's Toolkit 5e
★4.6
Behind the Tables
Behind the Tables
★4.7
TableTone: Tabletop RPG Sounds
TableTone: Tabletop RPG Sounds
★3.8
DungeonRoller - RPG Generator
DungeonRoller - RPG Generator
★4.3
d20 Character Sheet
d20 Character Sheet
★3.7
D20 Complete Reference
D20 Complete Reference
★4.3
YourRoll
YourRoll
★4.4
Fantasy Dice - 3D Dice Roller
Fantasy Dice - 3D Dice Roller
★4.7
Complete Reference for DnD 5
Complete Reference for DnD 5
★3.5
Game Master Journal
Game Master Journal
★3.9
Diceworld: DnD Spells & Dice
Diceworld: DnD Spells & Dice
★4.5
eRpgTools
eRpgTools
★3.9
Quest Portal VTT
Quest Portal VTT
★3.4
Dungeon World Helper
Dungeon World Helper
★4.2
TTRPG Encounter Generator
TTRPG Encounter Generator
★4.3
GameMaster Dice
GameMaster Dice
★4.1