# Odessa Alerting vs Grail

The clearest difference is review sentiment: Grail at 100% against Odessa Alerting's 50%. Grail also leads on rating (5.0 vs 3.0) and update cadence (every 2 months vs every 20 months). Odessa Alerting's advantage is iOS requirement (12.0 vs 18.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Grail holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 50% of Odessa Alerting's written reviews are positive against 100% of Grail's.

Odessa Alerting ships an update every 20 months, Grail every 2 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Odessa Alerting | Grail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/odessa-alerting/id1574220844/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/grail-clock-widget/id6751243236/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 67 MB | 5 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mach Alert Inc.](https://appshunter.io/developer/1472612618) | [Reda Hallal](https://appshunter.io/developer/1834192474) |

## What reviewers say

### Odessa Alerting

[App page](https://appshunter.io/ios/app/odessa-alerting/id1574220844)

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.

**Highlights:** State-of-the-art alerting functionality, Reliable dispatch for public safety, Maximizes critical information delivery, Tones and voice alerts, Robust add-ons and customization

**Features:** macOS Compatibility

**In-app purchases:** none


### Grail

[App page](https://appshunter.io/ios/app/grail-clock-widget/id6751243236)

This app offers a collection of digital widgets inspired by unique and hard-to-find wrist and pocket watches. Enhance your device's aesthetic with these distinctive horological designs.

**Highlights:** Widget collection based on watches, Unique and hard-to-obtain designs, Digital horology aesthetic, Customizable clock widgets

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

**In-app purchases:** none


## Frequently asked questions

### Is Odessa Alerting free?

Odessa Alerting is free to download, with no in-app purchases.

### Is Grail free?

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

### Which has better reviews, Odessa Alerting or Grail?

Grail is rated higher. Odessa Alerting averages 3.0 out of 5 from 3 ratings, while Grail averages 5.0 from 2 ratings.

### Do Odessa Alerting or Grail have ads?

Neither Odessa Alerting nor Grail shows ads.

### Which is updated more often, Odessa Alerting or Grail?

Odessa Alerting ships an update every 20 months, and Grail every 2 months. Most recently, Odessa Alerting was updated on October 19, 2026 and Grail on October 24, 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.*