Best apps like K.O. II Calc.

10+ similar apps compared and reviewed

4.1 avg rating
8 free apps
Updated August 2026
K.O. II Calc.
K.O. II Calc.
Jesus Evert Corral Pedraza

Looking for something like K.O. II Calc.? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to K.O. II Calc.

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Easily sync, save, and share your OP-1 projects. Import and export all four tracks to and from your device via USB. Offers iCloud Drive synchronization and cross-platform compatibility.

SysX Buddy#3

SysX Buddy by Ryouta Kira

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Manage MIDI System Exclusive messages on your iPhone or iPad. This utility allows you to send, receive, edit, and organize SysEx data for vintage synthesizers and sound modules. It supports external MIDI devices and BLE-MIDI, bridging classic instruments with modern mobile technology.