Overall this app is great. Works well for looking up a keyword during play and the rules search helps you find relevant sections quickly. The way the rules are linked from the glossary is particularly neat.
It desperately needs the card art for the card reference though. Lots of other apps offer that (orcish librarian does it and is free with ads) and I find it a lot less pleasing to browse cards without some graphics. Im sure there must be intellectual property issues but since the other apps exist I would urge mtg guide to get art ASAP. It would let me switch to only one iOS app for all my mtg needs.
Jeremy Clarke about MTG Guide, v2.6