SDT VR (Google Cardboard) vs E Sentry Systems
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SDT VR (Google Cardboard)
Explore the capabilities of the SDT340 Ultrasound Solution. This application demonstrates how to predict failures, manage energy expenses, and enhance product quality for improved asset uptime.
- Predict equipment failures
- Control energy costs
- Improve product quality
- Enhance asset uptime
- Demonstrates SDT340 Ultrasound Solution
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The SDT VR Experience show you how the SDT340 Ultrasound Solution will help you predict failures, control energy costs, and improve product quality while contributing to the overall uptime of your assets.
E Sentry Systems
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Activate and manage your E Sentry System assets. Users with an NFC compatible device can inspect asset tags to view and submit information, updating its history with the cloud. Activated users can view their assigned routes and designate their current route as needed, showing them which assets require an inspection and cataloging their progress through the route. All check-in information is synched with the cloud service allowing admins to review completed and assigned routes, create new routes, and review inspection history on each asset tag. Historical information is converted into trends and can be exported into an excel compatible document for review and maintenance.
Screenshots
Verdict
The clearest difference is iOS requirement: SDT VR (Google Cardboard) at 8.0 against E Sentry Systems's 16.0. On price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.
| Parameter | SDT VR (Google Cardboard) | E Sentry Systems |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 248 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | SDT International SA | IRISS Inc |
In-app purchases
SDT VR (Google Cardboard)
No in-app purchases
E Sentry Systems
No in-app purchases
Questions
Is SDT VR (Google Cardboard) free?
Is E Sentry Systems free?
Do SDT VR (Google Cardboard) or E Sentry Systems have ads?
Which is updated more often, SDT VR (Google Cardboard) or E Sentry Systems?
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