HiChart vs SVV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HiChart
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HiChart mobile app helps healthcare providers use the animation prescription service on mobile devices. HiChart app is connected with EHR system via QR codes. Using HiChart app, healthcare providers can show and send medical animations to patients.
SVV
This app measures your perception of verticality to assess gravity perception and vestibular function. It uses a simple line adjustment task to calculate deviations from the true vertical, aiding in the detection of vestibular asymmetry.
- Measures subjective visual vertical
- Evaluates gravity perception
- Detects vestibular asymmetry
- Adjusts perceived vertical line
- Calculates mean deviation and standard deviation
- Supports remote and game controllers
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Subjective Visual Vertical (SVV) is a test that measures the difference between a person’s perceived vertical and the true vertical. It evaluates gravity perception mediated by the otolith organs, vestibular nerve, and central vestibular pathways, and helps detect asymmetry of vestibular function. Using an audio/video remote control or a variety of game controllers, including those for Nintendo Switch, PlayStation, and Xbox, the user adjusts a displayed line until it is perceived as perfectly vertical. After repeating this procedure 10 times, the application calculates the mean deviation from the true vertical and the standard deviation.
Screenshots
Verdict
The clearest difference is update cadence: SVV at every 2 months against HiChart's every 23 months. HiChart's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HiChart ships an update every 23 months, SVV every 2 months. Both last shipped on November 3, 2026.
| Parameter | HiChart | SVV |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 23 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 11 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | HealthBreeze Co. Ltd | Kuroda ENT Clinic |
In-app purchases
HiChart
No in-app purchases
SVV
No in-app purchases
