# HiChart vs SVV

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.

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.

## The numbers

| Metric | HiChart | SVV |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 11 MB | 2 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [HealthBreeze Co. Ltd](https://appshunter.io/developer/379872729) | [Kuroda ENT Clinic](https://appshunter.io/developer/1369699677) |

## What reviewers say

### HiChart

[App page](https://appshunter.io/ios/app/hichart/id1275550860)

**Features:** macOS Compatibility

**In-app purchases:** none


### SVV

[App page](https://appshunter.io/ios/app/svv/id1471979816)

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.

**Highlights:** 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

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

**In-app purchases:** none


## Frequently asked questions

### Is HiChart free?

HiChart is free to download, with no in-app purchases.

### Is SVV free?

SVV is free to download, with no in-app purchases.

### Do HiChart or SVV have ads?

Neither HiChart nor SVV shows ads.

### Which is updated more often, HiChart or SVV?

HiChart ships an update every 23 months, and SVV every 2 months. Most recently, HiChart was updated on November 3, 2026 and SVV on November 3, 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.*