NeuroNode Controller vs Cervella
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- EMG signal monitoring
- Parameter adjustment
- Assistive communication
- iOS device control
- Muscle signal utilization
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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.
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.
- Cranial electrotherapy stimulation
- Adjustable intensity, frequency, and duration
- Treatment history storage
- FDA-cleared medical device
- Rechargeable battery powered
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | NeuroNode Controller | Cervella |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Control Bionics Inc | INNOVATIVE NEUROLOGICAL DEVICES LLC |
Customer experience
NeuroNode Controller
Cervella
In-app purchases
NeuroNode Controller
No in-app purchases
Cervella
No in-app purchases







