Title: Pocket Monsters Black 2 White 2 Official Guide Books iOS App...
A new iOS app was released in Japan on December 13th, 2012 called the Complete Story Walkthrough Guide + Complete Pokémon National Zukan Pocket Monsters Black 2 White 2 Official Guide Books (完全ストーリー攻略ガイド+完全ポケモン全国ずかん 〜ポケットモンスターブラック2・ホワイト2 公式ガイドブック〜). The app combines the two guide books that were
released in Japan earlier in the year. The app is 380MB and supports iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5, iPod touch (3rd generation), iPod touch (4th generation) and iPod touch (5th generation) and iPad. It is also available for Android devices that have OS 2.3 and up installed. The app costs 1500 yen and is about 500 yen cheaper than the combined paper printed versions.
The app includes a special Random Display feature that will randomly display one of the 649 Pokémon. Users can tap the screen to get full details from the Zukan. It also includes an interactive table of contents and a link button to allow viewers to go to a certain page right away.
Gothimiru Dream World
Those people that purchase the app from December 13th, 2012 until August 27th, 2013 can unlock a special
Gothorita (ゴチミル) on the Pokémon Global Link.
The Gothorita is similar to the one that was distributed with the print version of the Pocket Monsters Black 2 White 2 Official National Zukan Completion Guide (ポケットモンスターブラック2・ホワイト2 公式ぜんこく図鑑完成ガイド) but instead of the move
Mirror Coat (ミラーコート) it comes with the special move
Imprison (ふういん), a move it cannot normally know. It also comes with the Focus Band item. It still has the Hidden Ability Shadow Tag (かげふみ).
Click on images for higher resolution
Sources:
https://itunes.apple.com/jp/app/wan-quansutori-gong-egaido+wan/id581090103?mt=8,
http://over-lap.co.jp/book/bw2ap/ and
https://play.google.com/store/apps/details?id=jp.co.over_lap.bw2