Sentry vs Emergency response guides
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentry
Enhances situational awareness for law enforcement and first responders involved in alarm monitoring strategies. It supports partnerships with government and businesses to protect strategic assets globally.
- Elevates situational awareness
- Supports alarm monitoring strategies
- Partners with government and first responders
- Protects strategic assets globally
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Sentry-SECURE elevates situational awareness amongst law enforcement stakeholders that are critical to the alarm monitoring strategies being implemented by the Office of Radiological Security’s Protect strategy. The Office of Radiological Security uses these strategies to partner with government, first responders, and businesses to protect strategic assets around the world.
Emergency response guides
Access technical product information for rescue operations involving Volvo trucks. This application helps establish procedures and methods for effective rescue efforts.
- Technical product information
- Rescue operation procedures
- Methods for rescue
- Volvo truck specific
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This app aims to provide technical product information that can be used to establish procedures and methods for rescue operations for trucks within the volvo group. This app is designed for iPad OS.
Screenshots
Verdict
The clearest difference is rating: Emergency response guides at 5.0 against Sentry's 3.7. Sentry's advantage is ratings volume (6 vs 1). 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.
Emergency response guides holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Sentry has 6 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 3, 2026.
| Parameter | Sentry | Emergency response guides |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (6 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 56 MB | 176 MB |
| Age rating | 4+ | 4+ |
| Developer | VPI Engineering | Volvo Group |
Customer experience
Sentry
Emergency response guides
In-app purchases
Sentry
No in-app purchases
Emergency response guides
No in-app purchases
Questions
Is Sentry free?
Is Emergency response guides free?
Which has better reviews, Sentry or Emergency response guides?
Do Sentry or Emergency response guides have ads?
Which is updated more often, Sentry or Emergency response guides?
Other comparisons
