The app is available on the App Store for $4.99 USD. (Yes, that is it, no hidden fee, no annual subscription fee)
In-app purchases are completely optional, it is used to save time. Details can be found inside the app.
Yes, if you can provide your flight log in excel or csv format, I can import flight logs for you. Contact me with Facebook messages.
No worries, your flight logs are kept on a server as well. Just download the app and log in, click download when prompted. Your flight logs will be downloaded to that new device.
No. It is completely optional.
The in app purchases are designed to find all the related data for your flight such as aircraft type, registration, departure & destination airports, pushback time, takeoff time, landing time, gate-in time. One search costs one credit to be deducted from your account, in app purchases top up these credits. The app comes with 10 default search credits.