Comparison

Source Audio Neuro 3 vs H4essential Control

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Source Audio Neuro 3

Control and customize Source Audio's One Series guitar and bass effects pedals. Download thousands of presets, create your own unique sounds, and share them with a vibrant community of musicians. Seamlessly manage your pedal's effects from your mobile device or desktop.

Highlights
  • Download stage-ready presets
  • Create personalized effects sounds
  • Manage personal preset library
  • Share sounds with the community
  • Intuitive user interface
  • Cross-platform integration
Features
Read full description

Unlock the full potential of Source Audio's One Series line of guitar and bass effects pedals with Neuro 3. With over 10,000 presets crafted by both Source Audio and the Neuro Community, Neuro 3 empowers users to download stage-ready sounds directly to any One Series pedal. It also doubles as a potent effects editing tool, facilitating the creation of highly personalized sounds that can be loaded directly onto a pedal, stored in a personal preset library, or shared with the wider Neuro Community. Popular Neuro compatible One Series pedals include the Artifakt Lo-Fi Elements, Collider Delay+Reverb, C4 Synth, EQ2 Programmable Equalizer, and Ventris Dual Reverb. Neuro 3 is a top-to-bottom rewrite of the original Neuro app. It introduces a host of enhancements that include a sleek and intuitive user interface, streamlined preset downloading, advanced preset creation and management tools, and a seamless integration across mobile and desktop platforms. Additionally, it offers community-based features such as in-depth user profiles, public discussion forums accessible with every published preset, and the ability to Follow other Neuro Community members.

About

H4essential Control

Control your ZOOM H4essential Handy Recorder wirelessly from your iPhone or iPad. Manage recording, playback, parameters, and monitor vital information like waveforms and battery life.

Highlights
  • Wireless remote control
  • Start/stop recording and playback
  • Add marks
  • Set parameters
  • Monitor waveforms
  • Check battery and recording time
Features
Read full description

H4essential Control is an app that enables wireless control of the ZOOM H4essential Handy Recorder. An iPhone, iPad or iPod Touch can be used as a remote control for an H4essential. In addition to the fundamental operations of starting/stopping recording/playback and searching forward/backward, this app can be used to add marks and to set various parameters. The app can also be used to check the waveforms of input signals and the remaining battery charge as well as to monitor the remaining recording time. Note: A BTA-1 wireless adapter is necessary to operate an H4essential with H4essential Control.

Screenshots

Source Audio Neuro 34 screens
H4essential Control4 screens

Verdict

The call

The clearest difference is rating: Source Audio Neuro 3 at 4.4 against H4essential Control's 2.8. Source Audio Neuro 3 also leads on update cadence (every 4 weeks vs every 14 months) and ratings volume (51 vs 4). H4essential Control's advantage is review sentiment (50% vs 21%) and iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Source Audio Neuro 3 holds the better App Store score, 4.4 against 2.8. That said, the two scores are not equally well evidenced: Source Audio Neuro 3 has 51 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 21% of Source Audio Neuro 3's written reviews are positive against 50% of H4essential Control's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Source Audio Neuro 3 ships an update every 4 weeks, H4essential Control every 14 months. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
Source Audio Neuro 3 versus H4essential Control: the parameters behind the verdict, then further details
ParameterSource Audio Neuro 3H4essential Control
PriceFreeFree
Rating4.4 (51 ratings) — better2.8 (4 ratings)
Positive reviews21.4% of reviews50.0% of reviews — better
Number of ratings51 — better4
Update frequencyEvery 4 weeks — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size284 MB28 MB
Age rating4+4+
DeveloperSource AudioZOOM Corporation

Customer experience

Source Audio Neuro 3

All ratings51 ratings
Positive82.4%
Neutral9.8%
Negative7.8%
Written reviews98 reviews
Positive21.4%
Neutral10.2%
Negative68.4%

H4essential Control

All ratings4 ratings
Positive25.0%
Neutral25.0%
Negative50.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Source Audio Neuro 3

Reported bugs

57 issues
  • Settings not reflected in EQ2
  • Won't connect to pedal even at max volume
  • No connection with iPhone 11
  • App kills battery and overheats phone
  • Latest update broke app on iPad, crashes on open
Show 52 more
  • App will not let user create an account
  • Bluetooth connectivity issues remain
  • Editing aspects don't work or barely work
  • Most level settings don't have a proper zero
  • App continues to be a bag of bugs
  • App freezes on sign-in screen
  • App crashes instantly after login
  • Update broke TRS functionality
  • App no longer connects to pedal
  • Nemesis Delay integration no longer works, cannot change parameters without PC
  • Cannot login after password update
  • App doesn't load on iMac
  • Cannot connect pedals to iPhone
  • App still says disconnected despite Bluetooth sync
  • TRS cable won't connect to Ventris with iPhone
  • Cannot preview community presets without loading them
  • C4 pedal not recognized by current app version
  • USB connection to Ventris is unreliable, repeatedly disconnects
  • Tiny grey lettering against grey background for knob labels
  • App no longer capable of sending effects
  • Desktop app crashes when trying to log in
  • Unable to create an account, throws an error
  • Cannot change presets with provided cable
  • App keeps crashing
  • Presets do not work
  • Real-time editing or choosing a preset on the pedal isn't possible for C4
  • iOS app crashes every time it's used
  • Cannot figure out if presets are being saved
  • Cannot modify preset names
  • App crashes before finding C4 support
  • App will not calibrate sound
  • Cannot browse or search the preset library, endlessly displays loading animation
  • App doesn't work on Apple tablet, requires individual USB connection
  • App would not connect after initial use
  • App interface is clunky and not properly developed
  • Presets don't work, makes weird sound and doesn't load
  • No success cycling through presets
  • Cannot connect with the app
  • Error message about not being able to find a host name when creating an account
  • Desktop version tells user to use mobile version to create account
  • Half the time community presets won't load
  • Desktop app sometimes won't let you preview presets
  • Cannot edit preset names on phone
  • Headphone volume needs to be MAX for connection
  • Login requirement is extremely annoying
  • UI is really bad, BPM text entry doesn't save
  • Cannot enter hardware settings with updated app
  • Forgot password doesn't send reset email
  • Cannot make any changes to pedals with the app
  • No problems with iPad 2
  • LED is always red since latest firmware update
  • Internet connection error despite Wi-Fi

Requested features

19 requests
  • Tutorials for guitar players on programming synthesizers
  • Optimization improvements for the app
  • More intuitive GUI
  • Restore horizontal sliders and full 8-bit resolution
  • Add USB connection option
Show 14 more
  • Improve UI for easier parameter adjustment
  • Add +/- buttons for fine-tuning parameters
  • Allow for arbitrary setting of increment/decrement values for buttons
  • Enable continuous change with long-press on buttons
  • Implement gesture-based control similar to video playback
  • Allow users to rename presets
  • Add ADSR controls for synths
  • Make password reset automated
  • Update online tutorials to match current interface
  • Develop an iPad-specific app with desktop-like functionality
  • Improve reliability of USB connectivity
  • Make app usable without internet connection for library access
  • Allow knob adjustments on the pedal to reflect in the app
  • Fix bug where negative numbers cannot be input on iPhone

H4essential Control

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Source Audio Neuro 3

No in-app purchases

None

H4essential Control

No in-app purchases

Questions

Is Source Audio Neuro 3 free?
Source Audio Neuro 3 is free to download, with no in-app purchases.
Is H4essential Control free?
H4essential Control is free to download, with no in-app purchases.
Which has better reviews, Source Audio Neuro 3 or H4essential Control?
Source Audio Neuro 3 is rated higher. Source Audio Neuro 3 averages 4.4 out of 5 from 51 ratings, while H4essential Control averages 2.8 from 4 ratings.
Do Source Audio Neuro 3 or H4essential Control have ads?
Neither Source Audio Neuro 3 nor H4essential Control shows ads.
Which is updated more often, Source Audio Neuro 3 or H4essential Control?
Source Audio Neuro 3 ships an update every 4 weeks, and H4essential Control every 14 months. Most recently, Source Audio Neuro 3 was updated on October 16, 2026 and H4essential Control on October 2, 2026.

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