Comparison

NeuroNode Controller vs Cervella

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

Head to head
About

NeuroNode Controller

This application pairs with a specialized device to enable individuals with paralysis and speech loss to control iOS devices using muscle electrical signals. It allows for parameter adjustment and signal monitoring for efficient communication and device interaction.

Highlights
  • EMG signal monitoring
  • Parameter adjustment
  • Assistive communication
  • iOS device control
  • Muscle signal utilization
Features
Read full description

The NeuroNode EMG Augmented Assistive Communications (AAC) Controller Application is designed to pair with Control Bionics’ NeuroNode assistive control device. The application allows the user to adjust parameters and monitor EMG signal activity to ensure optimal signal outcomes are achieved to allow efficient and effective control of an iOS device utilizing Apple’s Accessibility Suite. The NeuroNode Assistive Control Device provides those living with paralysis and loss of speech the ability to control a computer using the electrical signals of their muscles.

About

Cervella

This medical device app delivers low-level electrical current to the brain via headphones to help manage anxiety, insomnia, and depression. Users can control treatment intensity, frequency, and duration, and store treatment history for healthcare provider review.

Highlights
  • Cranial electrotherapy stimulation
  • Adjustable intensity, frequency, and duration
  • Treatment history storage
  • FDA-cleared medical device
  • Rechargeable battery powered
Features
Read full description

Cervella Cranial Electrotherapy Stimulator (CES) is an award-winning FDA-cleared medical device which delivers small pulses of electrical current through patient’s brain. The stimulator is powered by an internal rechargeable battery which provides a low-level, constant current to the cranium via a pair of conductive electrodes incorporated into earpads of stereo over-ear headphones. The stimulator is controlled via a software application (app) installed on the patient’s smart device (e.g. smartphone). The patient uses the app to adjust the intensity level, frequency, and duration of the treatment. The app also allows the patient to automatically store the treatment history for review by the patient’s healthcare provider. During a treatment session, which typically lasts 30 minutes, patients suffering from anxiety, insomnia, and depression will experience reduction of anxiety immediately post-treatment and improved sleep patterns (insomnia reduction). Longer-term use has been clinically-validated to have a positive effect on reducing patient’s depressive mood. Cervella and its features are patent-pending.

Screenshots

NeuroNode Controller4 screens
Cervella4 screens

Verdict

The call

The clearest difference is update cadence: Cervella at every 3 weeks against NeuroNode Controller's every 3 months. Cervella also leads on iOS requirement (11.0 vs 14.0). On price, rating, ratings volume and ads 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

On the App Store both sit at effectively the same score — 5.0 for NeuroNode Controller against 5.0 for Cervella. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

NeuroNode Controller ships an update every 3 months, Cervella every 3 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
NeuroNode Controller versus Cervella: the parameters behind the verdict, then further details
ParameterNeuroNode ControllerCervella
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings22
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size12 MB11 MB
Age rating4+4+
DeveloperControl Bionics IncINNOVATIVE NEUROLOGICAL DEVICES LLC

Customer experience

NeuroNode Controller

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Cervella

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

NeuroNode Controller

No in-app purchases

None

Cervella

No in-app purchases

Questions

Is NeuroNode Controller free?
NeuroNode Controller is free to download, with no in-app purchases.
Is Cervella free?
Cervella is free to download, with no in-app purchases.
Which has better reviews, NeuroNode Controller or Cervella?
NeuroNode Controller and Cervella are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do NeuroNode Controller or Cervella have ads?
Neither NeuroNode Controller nor Cervella shows ads.
Which is updated more often, NeuroNode Controller or Cervella?
NeuroNode Controller ships an update every 3 months, and Cervella every 3 weeks. Most recently, NeuroNode Controller was updated on October 5, 2026 and Cervella on October 7, 2026.

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