Same. I have spare Google Rewards credits so I bought the in-app purchase to support the developer. Been using this app for probably over 10 years now.
One of my most frequently used features is the FTP file transfer to/from a Windows device or even another Android device.
Agree. I would highly recommend new readers to the series to start with 14. Apart from being a great introduction to this world, it gives off a really good sense of going down the rabbit hole. A really fun ride.
Book 3 was probably the weakest as it had a completely different tone, but still enjoyable for fans of the author.
I would also recommend Dark Matter by Blake Crouch that was recently adapted into a tv series. Best to go in blind. Don't even watch the tv series trailer as it contains minor spoilers.