Apps like Game Master Journal

Here are some great alternatives to Game Master Journal by Redhead Development :
RPG Notebook: Campaign Manager
RPG Notebook: Campaign Manager
★4.5
Fifth Edition DM Tools
Fifth Edition DM Tools
★3.5
Game Master's Toolkit 5e
Game Master's Toolkit 5e
★4.6
RPG Generator
RPG Generator
★4.6
NPC Generator
NPC Generator
★3.4
Assistant for SV
Assistant for SV
★4.9
Gloomhaven Campaign Tracker
Gloomhaven Campaign Tracker
★4.7
RPGen
RPGen
★4.7
Places Been - Travel Tracker
Places Been - Travel Tracker
★4.4
RPG Encounter
RPG Encounter
★3.4
My Town - Build a City Life
My Town - Build a City Life
★3.8
iBucket List: Travel & Goals
iBucket List: Travel & Goals
★4.1
My Location - Track GPS & Maps
My Location - Track GPS & Maps
★4.3
MapGenie: Tales of Arise Map
MapGenie: Tales of Arise Map
★4.4
Pin Traveler: Travel Tracker
Pin Traveler: Travel Tracker
★4.2
Mark Photo Spot
Mark Photo Spot
★0.0