Has potential but too buggy to use today
Nice looking app, but within minutes I had a hang which couldn’t be cleared by restarting. I had to reinstall but purchases were only partially restored: I can see the whole book pdf but it now asks me to buy the sectors again. The map isn’t usable where there are many crags as it groups nearby ones together, but you can’t zoom in enough to view them separately and get at the info. Fortunately the paper book looks great, I’ll use that for now and update this review if there is an update to the app. All the best to the developers (are you aware of these problems?)