# HemiStim vs Visual Attention Therapy Lite

The clearest difference is price: Visual Attention Therapy Lite at Free against HemiStim's $9.99. Visual Attention Therapy Lite also leads on rating (4.7 vs 2.4) and review sentiment (75% vs 38%). HemiStim's advantage is chart position (#196 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

Visual Attention Therapy Lite is free to download; HemiStim costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Visual Attention Therapy Lite holds the better App Store score, 4.7 against 2.4. That said, the two scores are not equally well evidenced: Visual Attention Therapy Lite has 705 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 38% of HemiStim's written reviews are positive against 75% of Visual Attention Therapy Lite's.

HemiStim ships an update every 8 months, Visual Attention Therapy Lite every 9 months. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | HemiStim | Visual Attention Therapy Lite |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [2.4 (5 ratings)](https://appshunter.io/ios/app/hemistim/id521313664/reviews) | **[4.7 (705 ratings)](https://appshunter.io/ios/app/visual-attention-therapy-lite/id554546572/reviews)** |
| Number of ratings | 5 | **705** |
| Positive reviews | 37.5% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 9 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#196** | — |
| Size | 1 MB | 12 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Linsay Associates, LLC](https://appshunter.io/developer/326305565) | [Tactus Therapy Solutions Ltd.](https://appshunter.io/developer/438070002) |

## What reviewers say

### HemiStim

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

**Currently charting:** #196 Top Paid · Medical (US App Store)

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


### Visual Attention Therapy Lite

[App page](https://appshunter.io/ios/app/visual-attention-therapy-lite/id554546572)

This app helps individuals with brain injuries, strokes, or attention deficits improve their scanning abilities and cognitive skills. It offers timed exercises and automated scoring to track progress in areas like reading, concentration, and processing speed.

**Highlights:** Improve scanning abilities, Assess for neglect, Practice left-to-right scanning, Timed exercises, Automated scoring and reports, Customizable layouts and difficulty

**In-app purchases:** none

**What reviewers like**

- 👍 Great for vision therapy
- 👍 Helpful for stroke survivors
- 👍 Good for focus and attention
- 👍 Useful for hemispheric neglect
- 👍 Customizable difficulty

**What reviewers complain about**

- 👎 Lite version is limited
- 👎 Free version is garbage
- 👎 No flow between tests

**Requested features**

- Allow users to go to the next test without returning home
- Larger font for geriatric patients


## Frequently asked questions

### Is HemiStim free?

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

### Is Visual Attention Therapy Lite free?

Visual Attention Therapy Lite is free to download, with no in-app purchases.

### Which has better reviews, HemiStim or Visual Attention Therapy Lite?

Visual Attention Therapy Lite is rated higher. HemiStim averages 2.4 out of 5 from 5 ratings, while Visual Attention Therapy Lite averages 4.7 from 705 ratings.

### Do HemiStim or Visual Attention Therapy Lite have ads?

Neither HemiStim nor Visual Attention Therapy Lite shows ads.

### Which is updated more often, HemiStim or Visual Attention Therapy Lite?

HemiStim ships an update every 8 months, and Visual Attention Therapy Lite every 9 months. Most recently, HemiStim was updated on September 14, 2026 and Visual Attention Therapy Lite on September 21, 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.*