Almost for the similar price, I found the Presonus i2 better than Focusrite iTrack Solo on the following grounds:-1. Built quality.2. Input options (trs+balanced) and separate volume control for headphone.3. "Sound quality" marginally better.4. Any MFI lightning connector is compatible, in the case of Focusrite iTrack Solo, if you happen to lose the device link/cable, you are gone! it costs a bomb.The Focusrite iTrack Solo is better than the Presonus AudioBox i2 on the following grounds:-1. More headroom, sound output.2. Better latency management.I highly recommend the presonus i2 for those musicians who works on different DAWS and different OS like Windows/MacOS/iOS