The Whimsy Lenormand app for iPhone/iPad uses the deck of the same name, created by Pepi Valderrama (2013). The 36 borderless cards are bright and playful, and have the card title in English, the Lenormand number, and an abbreviated playing card association.
As for the app functionality, you can draw a single card, a line of 3 or 5, or a 3x3 square. Going into the settings allows you to chose between the app shuffling automatically when you choose your reading, or when you shake your device :)
There is also both a journal and a 'share' function. The journal works nicely, with plenty of space to write and a saved screenshot of the cards so you can track your readings. As for the share function, you can send yourself or someone else a pretty screenshot and commentary by email or text, or either tweet it or upload it to Facebook. Finally, it also gives you the option to save the image to your camera roll, assign it to a contact, copy it, or print the reading out: so, a really full range of possibilities.
In terms of card meanings, these are easy to access by tapping to enlarge a particular card in a reading and then 'turning it over'. The meanings give keywords, and positive and negative interpretations, all taken from Pepi's own book on the subject (originally published in Spanish).
There are three things I had thought might be there which aren’t: the option to look through all the cards; the ability to draw a GT, and the ability to create your own spread. Overall, though, it is a handy, fun and very user-friendly app. There is a free version, which doesn’t give the journal option or all of the spreads, and then the full version, which costs £0.69 - definitely a good deal!