Comparison

vHIT96da vs EYES!

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

Head to head
About

vHIT96da

Features
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This application enables video head impulse testing (vHIT) using an iPhone. A dedicated fixation device is attached to the iPhone and held in place by the subject biting on the mouthpiece. The 3D design data for this fixation device are available on the developer’s website. The application records eye movements using high-speed video capture and analyzes the recorded video to generate graphs of eye movement. Simultaneously, motion sensor data from the iPhone are acquired and used to generate graphs of head movement. The analysis results can be saved as image files. These saved images can also be attached to and sent via email. This application and fixation device have been used in research studies approved by an institutional ethics committee in Japan. They are intended for research purposes only and must not be used for clinical diagnosis or treatment.

About

EYES!

Features
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Measure your visual and reaction performance β€” scientifically, with just your smartphone. EYES! is a mobile app that comprehensively evaluates visual and cognitive functions essential for daily performance, including eye movements, visual field, and reaction speed. From sports and rehabilitation to education and brain conditioning, EYES! visualizes the state of your eyes and brain β€” anytime, anywhere. Key Assessments: Dynamic Visual Acuity: The ability to accurately perceive moving objects Smooth Pursuit Eye Movement: The ability to smoothly track a moving target (linked to focus and fatigue) Saccadic Eye Movement: The ability to quickly shift your gaze (related to decision-making speed) Reaction Time: Neural response speed to visual stimuli Peripheral Vision: Awareness and attention across the visual field Visual Search & Decision-Making: Quickly identifying correct targets from multiple options No wearables. No contact. Just your smartphone. EYES! is the new standard for scientifically measuring and training your visual performance. All of the features available for only $6.99 per year! Term Of Use: https://tnq-tech.web.app/term_of_use

Screenshots

vHIT96da4 screens
EYES!4 screens

Verdict

The call

The clearest difference is in-app purchases: vHIT96da at none against EYES!'s 1. EYES!'s advantage is update cadence (every 4 days vs every 11 days) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. EYES! sells 1 in-app purchase, starting at $5.99 per year. vHIT96da asks for nothing beyond the download.

UpkeepUpdate frequency

vHIT96da ships an update every 11 days, EYES! every 4 days. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

Scorecard3 real differences Β· 3 level
vHIT96da versus EYES!: the parameters behind the verdict, then further details
ParametervHIT96daEYES!
PriceFreeFree
Update frequencyEvery 11 daysEvery 4 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.612.0 β€” better
Further details β€” not scored
Size5 MB99 MB
Age rating12+4+
DeveloperKuroda ENT ClinicTNQ Tech, Co.

In-app purchases

None

vHIT96da

No in-app purchases

1 purchases

EYES!

Subscriptions1
  • Yearly Plan$5.991 Year

Questions

Is vHIT96da free?
vHIT96da is free to download, with no in-app purchases.
Is EYES! free?
EYES! is free to download, with in-app purchases available.
Do vHIT96da or EYES! have ads?
Neither vHIT96da nor EYES! shows ads.
Which is updated more often, vHIT96da or EYES!?
vHIT96da ships an update every 11 days, and EYES! every 4 days. Most recently, vHIT96da was updated on September 23, 2026 and EYES! on September 20, 2026.

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