Mars is a beautifully designed, lightweight reddit client for iPhone and iPad.
• Two themes; light and dark
• Set theme to auto change based on display brightness
• Options for thumbnail images or inline images in feeds
• View Front and All
• View all of your subscribed subreddits
• View Comments, Submitted, Liked, Disliked, Hidden, and Saved from Profile
• Go to any subreddit and search all of Reddit
• Sort subreddits by Hot, New, Rising, Controversial, or Top
• Block subreddits from r/all
• Password protection on launch
Increased font size on iPad
PanoPerfect 
PhotoMojo! for iPad 
Stocks.