Source Audio Neuro 3 4+

This software is NOT ready for actual use. It is at best an early forced-beta.

Unfortunately, for iOS there is no way to revert the older version which featured horizontal sliders which made good use of screen real estate and were easy to read. Parameter values had 256 steps of resolution.

The new version replaces sliders with knobs which are much more difficult to use, don't make good use of screen real estate, and scale values to the nearest percentage, thus causing a loss of edit resolution. There are also issues like EQ bands where there is either no zero dB, or two zeroes (0.0 and -0.0).

I timed myself and it took me 30 seconds to encounter a malfunction with this latest release.

It's heart-breaking, because I like Source Audio, and I know those folks are really trying to do this right. The Neuro app ambitiously covers a large range of pedals providing incredibly detailed access to these amazing devices.

Because they released it to iOS WAY too soon, and they refuse to go backward, I suppose we'll have to ride this out.

When things start to shape up, I will keep updating this review. For now, if you have a choice, it would be best to wait.

/EDIT:
Ranted about this app on a previous post. Was able to fix the problem by updating my ipad to the latest IOS 8.4.1/

I play bass, and the Source Audio pedal sounds great right out of the box, however, Neuro took it to the next level and made the hardware much more versatile. The app could be more informative if you are unfamiliar with audio settings so theres a bit of a learning curve, but once you get a hang of it, you can make the pedal sound AWESOME and sit better with other effects in your chain. I maxed the "drive" eq and my Lunar Phaser sounds beefier and has a whole new character now. Library of presets and artists could be larger, but its a new app and its expected to keep growing.
Kept in touch with their engineers and theyve been knowledgeable and helpful.
I'd rate it as a 4.5

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(old review)
Just got a Lunar Phaser, and this app does not do justice to an otherwise great hardware. Its easy to play with the settings, but there are no instructions as of what menu does what. If you tweak the knobs on the pedal, the app does not replicate it. The worse thing is that once you are done with it and wish to back to the main menu, it wont let you acess it again. The thing becomes unclickable, thus you have to unistall and reinstall it again. Terrible UX.

Source Audio put out a great product in the C4 Synth, so it’s a real shame the mobile app that is critically important for swapping out presets fails to load any of them. Since the app requires and internet connection even to access presets you have stored in your “library”, I was basically unable to edit the device, and this was an ongoing product. Yes, there is the desktop editor but that isn’t always an option once you install the pedal to a pedalboard. I was finally able to access some other presets I had burned to the pedal using a $3 MIDI app I had to separately purchase. I hate to think how many people bought this excellent pedal and never got to see what it can do because of these connectivity issues. Hopefully will be improved, but the other reviews across a long period of time do not leave me encouraged.