# Vehicle Viewer vs Questar Installer

The clearest difference is update cadence: Vehicle Viewer at monthly against Questar Installer's every 4 months. 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.

Vehicle Viewer ships an update monthly, Questar Installer every 4 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Vehicle Viewer | Questar Installer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Size | 71 MB | 3 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [锡敏 石](https://appshunter.io/developer/1015833793) | [QUESTAR AUTO TECHNOLOGIES LTD](https://appshunter.io/developer/916723518) |

## What reviewers say

### Vehicle Viewer

[App page](https://appshunter.io/ios/app/vehicle-viewer/id1225451107)

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

**In-app purchases:** none


### Questar Installer

[App page](https://appshunter.io/ios/app/questar-installer/id6751549009)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vehicle Viewer free?

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

### Is Questar Installer free?

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

### Do Vehicle Viewer or Questar Installer have ads?

Neither Vehicle Viewer nor Questar Installer shows ads.

### Which is updated more often, Vehicle Viewer or Questar Installer?

Vehicle Viewer ships an update monthly, and Questar Installer every 4 months. Most recently, Vehicle Viewer was updated on November 2, 2026 and Questar Installer on October 30, 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.*