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Jamm Pro
App Store description: “Jamm Pro is the anticipated evolution of Ninja Jamm, the original touch controlled beat app. Easy to use but deep, Jamm Pro includes Ninja Jamm users most requested feature: the ability to load your own samples. As well as immense performance power, it’s packed with pro features and new ideas e.g. its modular synth-like patching capabilities.”
App type: App
App store link: 
Developer: Ninja Tune
Developer AB Forum Handle:
Additional Info
The developer has a YouTube channel with [https://www.youtube.com/playlist?list=PLDgP_tmAW9u6w56GgONS0Xo6NiCDtlJV3|tutorials].
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