Chaldea

Literally the perfect FGO companion. Helps me identify all the servants I want in the future AND when they’ll roughly drop. Keeps track of all my equipment shows ALL information on servants including skill materials, ascension items and even bind CEs. Literally perfect.

Very easily the best planner for FGO on mobile. Constantly updated for both NA and JP! Wanna see a servant’s japanese lines? You got it. Chinese? Sure! English? You’ll have to wait for official translations, but you’ll get them. Calculates drops, what you need to fully upgrade a servant, and even summons! Very useful app.

Very under utilized planning tool. This should be standard for every FGO player. A+. Only wished there was a web version as well.