# HemiStim vs Sonorias

The clearest difference is review sentiment: HemiStim at 38% against Sonorias's 20%. HemiStim also leads on price ($9.99 vs $11.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

HemiStim costs $9.99 and Sonorias $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HemiStim ships an update every 8 months, Sonorias every 10 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | HemiStim | Sonorias |
| --- | --- | --- |
| Price | **$9.99** | $11.99 |
| Rating | **[2.4 (5 ratings)](https://appshunter.io/ios/app/hemistim/id521313664/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **37.5% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 10 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 7 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Linsay Associates, LLC](https://appshunter.io/developer/326305565) | [Inovatrix s. r. o](https://appshunter.io/developer/1481465659) |

## What reviewers say

### HemiStim

[App page](https://appshunter.io/ios/app/hemistim/id521313664)

This app offers visual stimulation for specific brain lobes, aiding in hemispheric connectivity. It utilizes color patterns and eye-tracking exercises for targeted left or right brain stimulation, controllable via simple taps and swipes. Therapy sessions are automatically tracked and can be emailed to clinicians.

**Highlights:** Visual stimulation of frontal, parietal, occipital, temporal lobes, Hemispheric brain stimulation, Color pattern selection, Eye tracking for saccadic and pursuit movements, Adjustable blink rate and timer, Automatic therapy session tracking, Clinician-patient email communication

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Sonorias

[App page](https://appshunter.io/ios/app/sonorias/id1481465660)

This specialized music player is designed for individuals undergoing JIAS training. It connects to dedicated servers, allowing users to download and listen to personalized audio tracks generated by their JIAS provider via headphones.

**Highlights:** JIAS training specific player, Connects to Sonorias servers, Download personalized music, Offline listening, Headphone compatible

**In-app purchases:** none


## Frequently asked questions

### Is HemiStim free?

HemiStim costs $9.99, with no in-app purchases.

### Is Sonorias free?

Sonorias costs $11.99, with no in-app purchases.

### Do HemiStim or Sonorias have ads?

Neither HemiStim nor Sonorias shows ads.

### Which is updated more often, HemiStim or Sonorias?

HemiStim ships an update every 8 months, and Sonorias every 10 months. Most recently, HemiStim was updated on October 26, 2026 and Sonorias on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*