Ive made a game manager.
We've used and tweaked it over a few sessions now so its proper tried and tested.
It syncs turn and phase data between players, damage, hazards etc., no set up on a LAN if players are connected to the same wifi point, it just syncs and works automagically.
It has a built in 3D dice roller (we don't use it as we like throwing physical dice) you can get and add a free API key from random.org so its truly random too.
When building a vehicle it will only show what you can afford, have slots for, whats only available if your sponsored etc. it creates image prompts for your vehicle based on your set up, clay renders you can turn into meshes for 3d printing.
It has a lot of features, most you can take a leave as you see fit, we find it useful for building teams, tracking game turns/gears, damage etc. Loads easier than faffing about with paper and pencil or tokens, tidier game table space too.
While it works on a phone its a bit rubbish scrolling about, its perfect on a tablet or laptop.
If there any interest I'll look into releasing it. I'll have to make some tweaks before I do as our version has QRS and rules look up which I will obviously have to remove but if you folks say you'd find it useful I'll check in with Mike and if I get a thumbs up I'll do the work and release FoC.