First of all, my hat is off to you, dj Turntables. This is the first DJ app out on the app store (that I've tried) to finally meet me expectations. I am an amateur DJ and I LOVE an app like this. I'll break it down for you.
Turntable 10/10- I like that the timing works and how the album cover is cropped into the center. Very nice layout when it comes to appearance and performance. The timing system works, flawlessly.
Sampling 9.5/10- The augmentation of sounds, the power off/on, the rewind and fast forward buttons, and the Cue button all offer a great and unique way to sample and make to song, in a way, your own. The fade out feature adds a great new way to sample.
Scratching 9.5/10- The scratching is usually what users enjoy the most with DJ apps. Some are satisfied with cheap, pre-recorded scratches. I, like many others, am not. This application brings a great scratch interface to the table. Actually using the sounds of the song to scratch? Mixing your own songs? I haven't seen it done before on an app in the app store. Great Job. The new scratching is great. Two fingers lets you scratch longer, and move the vinyl as you scratch. One finger is quicker and fast if you want a different effect.
Appearance 9.5/10- It looks great, and its all organized. However , aside from the vinyl and augmentation feature, it doesn't look like a real turntable. But I'm afraid if you change it, it will be harder to use. So, don't change it.
Set-Up 10/10 - Great system. Easy to navigate around. It took me only 5 minutes to figure out controls and features. Amazing.
Overall, the app gets a 9.7/10. Best DJ app on the app store. If you like DJing the slightest bit, buy this app.