# SHv4 Calculator vs Visual Guidance

The clearest difference is update cadence: SHv4 Calculator at every 3 months against Visual Guidance's every 14 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for SHv4 Calculator against 5.0 for Visual Guidance. Both are backed by a comparable volume of ratings — 4 and 5 respectively.

SHv4 Calculator ships an update every 3 months, Visual Guidance every 14 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | SHv4 Calculator | Visual Guidance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/shv4-calculator/id979817071/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/visual-guidance/id1354609169/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | Free | Free |
| Size | 1 MB | 13 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HealTech Electronics Ltd.](https://appshunter.io/developer/979817070) | [IMSAR LLC](https://appshunter.io/developer/1354609168) |

## What reviewers say

### SHv4 Calculator

[App page](https://appshunter.io/ios/app/shv4-calculator/id979817071)

Calculate your vehicle's speedometer error and get setup instructions for a SpeedoHealer module. This free, ad-free tool helps correct inaccurate speed and odometer readings on most motorcycles and some cars. It offers troubleshooting information and is compatible with non-cable driven speedometers.

**Highlights:** Calculate speedometer error, Generate SpeedoHealer v4 setup instructions, Access troubleshooting information, Ad-free experience, Offline functionality, Compatible with most motorcycles and cars

**In-app purchases:** none


### Visual Guidance

[App page](https://appshunter.io/ios/app/visual-guidance/id1354609169)

Displays basic navigation and sensor attitude data from the IMSAR suite of sensors. Users must agree to the IMSAR LLC End User License Agreement to install and use the application.

**Highlights:** Basic navigation display, Sensor attitude information, IMSAR sensor integration, License agreement required

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SHv4 Calculator free?

SHv4 Calculator is free to download, with no in-app purchases.

### Is Visual Guidance free?

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

### Which has better reviews, SHv4 Calculator or Visual Guidance?

SHv4 Calculator and Visual Guidance are both rated 5.0 out of 5 on the App Store, from 4 and 5 ratings respectively.

### Do SHv4 Calculator or Visual Guidance have ads?

Neither SHv4 Calculator nor Visual Guidance shows ads.

### Which is updated more often, SHv4 Calculator or Visual Guidance?

SHv4 Calculator ships an update every 3 months, and Visual Guidance every 14 months. Most recently, SHv4 Calculator was updated on October 24, 2026 and Visual Guidance on October 24, 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.*