Once you dig into this app and really understand what it offers such as geo synchronized approach plates  it becomes obvious that this flight book has much to offer. That it is still free places it head and shoulders above the competition. You will be missing out on the best deal in aviation should you not spend some quality time with Avare. I was so impressed  the money I used to send to Garmin for their Pilot app  now goes to Avare to help with development and bandwidth.
April 25 2017