Vehicle Viewer vs Questar Installer
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Vehicle Viewer
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1,query mobile dvr list of user 2,view realtime stream of mobile dvr 3,query real-time position of online mobile dvr 4,query history track of mobile dvr
Questar Installer
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Questar Installer App is the official mobile application designed for easy, fast, and reliable installation of Questar telematics devices in vehicles. The app enables validation of cellular communication, ignition, GPS, and CAN connections, and supports adding installer comments, selecting accessories, attaching photo documentation of the installation, and navigating to the vehicle by VIN or license plate (some features may not be available in earlier versions). With seamless integration into Questarβs cloud services, the installation process becomes transparent, automated, and fully ready for large-scale deployment by partners and customers worldwide.
Screenshots
Verdict
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.
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
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.
| Parameter | Vehicle Viewer | Questar Installer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly β better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 71 MB | 3 MB |
| Age rating | 4+ | 17+ |
| Developer | ι‘ζ η³ | QUESTAR AUTO TECHNOLOGIES LTD |
In-app purchases
Vehicle Viewer
No in-app purchases
Questar Installer
No in-app purchases
Questions
Is Vehicle Viewer free?
Is Questar Installer free?
Do Vehicle Viewer or Questar Installer have ads?
Which is updated more often, Vehicle Viewer or Questar Installer?
Other comparisons
