From the release:
The Distraction Lab is proud to announce the release of DiceForge - a unique dice rolling app which allows players to create their own custom dice. With DiceForge, you can carry all the unique dice you ever need, right in your pocket - whether it's for that new board game, role-playing game, or just for fun.
Unlike other dice rolling apps, DiceForge provides you with Dice Templates; image files you can download and customize, to forge your own dice. Just pick a dice shape (the traditional D4/D6/D8/D10/D12/D20) and upload your customized template. Dice can also be organized into game sets, making it easy to change from one game to another.
Powered by the Unity3D game engine, DiceForge creates one of the most realistic dice rolling experiences on iOS today. DiceForge is available today for $4.99, exclusively through the iTunes App Store. (Until May 1st, DiceForge is available for the introductory price of $3.99)