Comparison

HemiStim vs Vision Workout

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

Head to head
About

HemiStim

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
Currently charting
Read full description

Hemistim can be used as a visual stimulation of areas of the frontal, parietal, occipital, and temporal lobes hemispherically. It is a specific brain stimulation which is rarely used in conjunction with other treatments but can be used as a portion of a home-based program or an office-based program. Such usage may lead to improved hemispheric connectivity specific, targeted areas of the brain and its connections to the parietal/temporal or frontal cortices. Hemistim provides a visual stimulation through utilizing color patterns and eye tracking that can be used for specific left or right visual exercise. The stimulus is recognized and  interpreted by the contralateral (opposite) occipital lobe. Pursuit and saccadic eye movements are created by targeting on the moving object. Pursuit away from and saccade towards the alternating squares are initiated by the ipsilateral (same side) parietal and frontal cortex, respectively.  This gives the doctor the ability to work the frontal, parietal, occipital, and temporal lobes hemispherically.  HemStim is easy to use. Swipe left or right to select a different colored pattern. Multiple patterns are available. Tap a pattern to make it begin blinking. The pattern will blink until the timer stops it. Double tapping the pattern will also make it stop. The blink rate and timer can be changed using the sliders. Target motion is controlled by the tapping the small target to the right of the speed control. Choose among no motion, saccade, and pursuit by successive taps on the small target. Exterior motion is indicated by purple arrows on the target and interior motion by white arrows. The new Saccades screen only displays target motion. Drag the purple target with one finger to set the direction and length of its motion. Tap the screen once simultaneously with two fingers to switch between saccades, a dashed line, and pursuits, a solid line. Tap the screen once with one finger to start the saccades or pursuits. Double tap the screen with one finger to stop the target motion. HemiStim automatically tracks therapy sessions, recording all pertinent information about each one. Maintain close communication between clinician and patient via email.

About

Vision Workout

Enhance your dynamic vision and reaction speed with daily eye training exercises. Improve focus, peripheral awareness, and tracking skills for sports, eSports, or reducing eye fatigue. Personalized training adapts to your skill level.

Highlights
  • Dynamic vision training
  • Eye tracking exercises
  • Peripheral vision expansion
  • Reaction speed improvement
  • Focus and concentration enhancement
  • Customizable speed control
Features
Read full description

Want to improve your performance in sports and eSports? Just 3 minutes a day can improve your dynamic vision with simple eye training exercises. Recommended not only for athletes, but also for students, professionals, and anyone concerned about eye fatigue or aging vision. TRAIN YOUR EYES – GAIN THE EDGE Dynamic vision is the key to success. It determines how quickly and smoothly your eyes can follow moving targets — essential in ball sports like baseball, soccer (football), and tennis, in martial arts that require instant reactions, and in eSports where split-second decisions decide victory. Dynamic vision depends on the extraocular muscles that move your eyes. Just like body muscles, they can be strengthened at any age through consistent practice. This app acts as your personal eye trainer, helping you strengthen eye movement, reaction speed, and focus. ◆ Exercises Included • Teleportation – Train your eyes to track suddenly appearing objects • Peripheral Vision – Expand your field of view and peripheral awareness • Zigzag – Eye movement and diagonal tracking (DVA) • Tile – Vertical and horizontal tracking (DVA) • 3D – Kinetic visual acuity training (3D/KVA) • Flash Memory Test – Improve focus, instantaneous vision, and short-term memory • MOT Skills ◀NEW (Pro) – Advanced multi-object tracking to improve focus and reaction speed Speed control is available — from extra-slow for beginners to ultra-fast for experts. ◆ User Voices - “My reaction time in games improved a lot.” – Apex player, Japan - “Perfect warm-up before sports practice.” – MtMan820, USA - “Helps my eyes relax after long hours of screen work.” – Dirkalirk, USA - “So much content for free. Great for daily basics.” – Tsurutontan37, Japan ◆ Pro Features Free to start. Unlock full training power with Pro: • MOT Skills – Master multi-object tracking • Full Speed Control – From ultra-fast to extra-slow with custom settings • Change Ball Colors (3D Mode) • Remove All Ads – Train with zero distractions • Family Sharing – One purchase covers your whole family Free trial included — experience all Pro features before subscribing. ◆ Start Today Consistent training won’t show instant results like muscle workouts, but progress is guaranteed if you keep going. Improving dynamic vision and reaction speed is the skill that separates winners from losers. Use it as a warm-up before matches, for martial arts and ball games, or as an Aim Trainer for FPS games. It’s also helpful for improving focus for those who find it hard to concentrate (including ADHD tendencies). Your personal eye trainer helps you build stronger vision habits – just 3 minutes a day to stay sharp and focused, and ahead. Terms of Use: http://thomsons.jp/sp/vw_terms.htm Privacy Policy: http://thomsons.jp/sp/privacypolicy.htm

Screenshots

HemiStim3 screens
Vision Workout4 screens

Verdict

The call

The clearest difference is price: Vision Workout at Free against HemiStim's $9.99. Vision Workout also leads on rating (4.7 vs 2.4) and review sentiment (79% vs 38%). HemiStim's advantage is in-app purchases (none vs 7) and ads (none vs shown). On device support 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

Vision Workout is free to download; HemiStim costs $9.99 up front. Vision Workout sells 7 in-app purchases, starting at $5.99 per 3 months. HemiStim asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Vision Workout holds the better App Store score, 4.7 against 2.4. That said, the two scores are not equally well evidenced: Vision Workout has 1.2K 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 79% of Vision Workout's.

UpkeepUpdate frequency

HemiStim ships an update every 8 months, Vision Workout monthly. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.

Scorecard10 real differences · 1 level
HemiStim versus Vision Workout: the parameters behind the verdict, then further details
ParameterHemiStimVision Workout
Price$9.99Free — better
Rating2.4 (5 ratings)4.7 (1.2K ratings) — better
Positive reviews37.5% of reviews79.1% of reviews — better
Number of ratings51.2K — better
Update frequencyEvery 8 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
Best chart rank#196 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size1 MB158 MB
Age rating4+4+
DeveloperLinsay Associates, LLCTHOMSON Inc.

Customer experience

HemiStim

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews8 reviews
Positive37.5%
Neutral12.5%
Negative50.0%

Vision Workout

All ratings1,176 ratings
Positive92.3%
Neutral5.1%
Negative2.6%
Written reviews153 reviews
Positive79.1%
Neutral13.1%
Negative7.8%

Bugs and requests

HemiStim

Not enough reviews yet to summarise bugs or requests.

Vision Workout

Reported bugs

2 issues
  • Compatibility issues on some Android devices
  • Occasional crashes or freezes during use

Requested features

4 requests
  • Add more training modes and exercises
  • Provide option to adjust speed and difficulty
  • Include scoring and progress tracking
  • Offer paid version to remove ads

In-app purchases

None

HemiStim

No in-app purchases

7 purchases

Vision Workout

Subscriptions4
  • Pro (3-MONTH)$5.993 Months
  • Pro (annual)$5.991 Year
  • Pro (YEARLY)3 Days trial$11.991 Year
Show 1 more
  • Pro+ (YEARLY)3 Days trial$14.991 Year
One-time3
  • Pro (lifetime)$9.99
  • Pro (LIFETIME)$22.99
  • Pro+ (LIFETIME)$29.99

Questions

Is HemiStim free?
HemiStim costs $9.99, with no in-app purchases.
Is Vision Workout free?
Vision Workout is free to download, with in-app purchases available.
Which has better reviews, HemiStim or Vision Workout?
Vision Workout is rated higher. HemiStim averages 2.4 out of 5 from 5 ratings, while Vision Workout averages 4.7 from 1.2K ratings.
Do HemiStim or Vision Workout have ads?
Vision Workout shows ads; HemiStim does not.
Which is updated more often, HemiStim or Vision Workout?
HemiStim ships an update every 8 months, and Vision Workout monthly. Most recently, HemiStim was updated on September 14, 2026 and Vision Workout on September 24, 2026.

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