Stealth Hydro Data vs Odessa Alerting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stealth Hydro Data
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Stealth Application for pressure testing sections of pipe with a digital pressure gauge. All data is stored digitally and test reports are created for our customer with date/time stamp.
Odessa Alerting
This application provides advanced fire station alerting functionality for public safety answering points and fire/EMS facilities. It aims to minimize dispatch time and maximize critical information delivery to first responders through tones, voice, and customizable options.
- State-of-the-art alerting functionality
- Reliable dispatch for public safety
- Maximizes critical information delivery
- Tones and voice alerts
- Robust add-ons and customization
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Mach Alert is a full featured fire station alerting (FSA) solution designed to provide state of the art alerting functionality and reliability to public safety answering points (PSAP), fire and EMS facilities, and, with optional add-ons, to first responders in the field. Whether operating as a standalone system or via interface to a computer aided dispatch (CAD) product, Mach Alert is designed to minimize time spent dispatching at the 911 center and maximize the amount of critical information delivered to first responders when they need it most with tones, voice, and a robust catalog of add-ons and customization options. The Mach Alert Mobile Application is an optional companion for full Mach Alert FSA systems. Like functionality is only available with an associated services agreement.
Screenshots
Verdict
Stealth Hydro Data and Odessa Alerting are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Stealth Hydro Data ships an update every 41 months, Odessa Alerting every 20 months. The most recent releases landed on September 14, 2026 and June 9, 2026 respectively.
| Parameter | Stealth Hydro Data | Odessa Alerting |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (3 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 41 months | Every 20 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 67 MB |
| Age rating | 9+ | 4+ |
| Developer | JM Test Systems Inc. | Mach Alert, Inc. |
In-app purchases
Stealth Hydro Data
No in-app purchases
Odessa Alerting
No in-app purchases
Questions
Is Stealth Hydro Data free?
Is Odessa Alerting free?
Do Stealth Hydro Data or Odessa Alerting have ads?
Which is updated more often, Stealth Hydro Data or Odessa Alerting?
Other comparisons
