[iOS] Free Apps: Opus Domini Mobile Pro (Was US $6.99), Next Keyboard, Asketch & Interlocked (Were US $0.99) @ iTunes

Opus Domini Mobile Pro:

Personal Planner & Time Management App. Opus Domini uses iCloud to share information across the different versions and devices. So in order to sync information between your different devices you will be needing to use a compatible combination of OS X and iOS.

Next Keyboard- Beautiful Themes, New Emojis & Stickers

Next is a beautiful keyboard for iPhone that works as great as it looks. It comes fully loaded with lightning fast editing, predictive typing, instant access to all the emojis you love plus more, playful stickers (tacos anyone?), and stunning themes.
We’ve got over 1,400 emojis and stickers, loads of beautiful themes and the basics covered with features like next-word prediction, auto correct, and quick editing with our innovative quick cursor swipe.
Use Next anywhere you use your regular keyboard, like messages, WhatsApp, or Slack.

Asketch

Asketch is a unique and versatile sketch pad that fits in your pocket. It allows creativity on the go, anytime, anywhere.
Its deliberate simplicity makes it perfect for beginners who want to learn to draw;
equally, advanced artists will find a wonderful buttery, tonal canvas for their life studies, cartoons, abstracts, landscapes and other subjects. The app is engineered to deliver rapid, but powerful image capture, facilitated by a great transform function that allows you to pick up the drawing, resize it and move it around the canvas, and a amazing zoom that lets you draw in minute detail. So if you want to put a traditional, but digital sketch pad in your pocket, this is the app for you.

Interlocked

Number 1 puzzle game. Do you know those puzzles consisting of a few wooden blocks that are impossible take apart? Then you know Interlocked. Each level, you’re given a unique and beautiful 3D puzzle consisting of blocks that hold each other together. Take it apart and you'll feel ten times as smart.

Here are a few apps that are now free (not sure until when).
Here's a Haiku that sums up three of the apps:
Asketch App Seems Nice
Opus App Reviewed Poorly
Next Keyboard Useless