# CrewAlert vs ALPA ASF

The clearest difference is rating: ALPA ASF at 5.0 against CrewAlert's 4.0. ALPA ASF also leads on in-app purchases (none vs 2) and update cadence (monthly vs every 2 months). CrewAlert's advantage is device support (4 vs 2) and iOS requirement (15.6 vs 17.0). On price, ratings volume and ads there is nothing between them.

Both are free to download. CrewAlert sells 2 in-app purchases, starting at $1.99 per month. ALPA ASF asks for nothing beyond the download.

ALPA ASF holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

CrewAlert ships an update every 2 months, ALPA ASF monthly. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | CrewAlert | ALPA ASF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/crewalert/id391351389/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alpa-asf/id6654918124/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 34 MB | 55 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Jeppesen Systems AB](https://appshunter.io/developer/391351392) | [Air Line Pilots Association, International](https://appshunter.io/developer/561681760) |

## What reviewers say

### CrewAlert

[App page](https://appshunter.io/ios/app/crewalert/id391351389)

This app helps airline professionals and crew manage fatigue risk by predicting and analyzing alertness levels. It offers tools for proactive and reactive fatigue reporting, risk reduction, and data collection, built on a scientific alertness model.

**Highlights:** Predictive fatigue analysis, Proactive fatigue data collection, Simplified fatigue reporting, Context-sensitive fatigue mitigation, Alertness prediction model, Sleep diary and data collection, What-if scenario planning

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CrewAlert (1 Month) | $1.99 | per month |
| CrewAlert Yearly (12 months) | $19.99 | per year |


### ALPA ASF

[App page](https://appshunter.io/ios/app/alpa-asf/id6654918124)

Enhance your event experience with personalized schedules, speaker and sponsor information, and interactive features like Q&A and feedback surveys. Access venue details and award winner information.

**Highlights:** Personalized sessions and agendas, Speaker, sponsor, and exhibitor bios, Raffle and panelist Q&A participation, Feedback surveys, Venue and hotel maps, Award winner information

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

**In-app purchases:** none


## Frequently asked questions

### Is CrewAlert free?

CrewAlert is free to download, with in-app purchases available.

### Is ALPA ASF free?

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

### Which has better reviews, CrewAlert or ALPA ASF?

ALPA ASF is rated higher. CrewAlert averages 4.0 out of 5 from 2 ratings, while ALPA ASF averages 5.0 from 1 ratings.

### Do CrewAlert or ALPA ASF have ads?

Neither CrewAlert nor ALPA ASF shows ads.

### Which is updated more often, CrewAlert or ALPA ASF?

CrewAlert ships an update every 2 months, and ALPA ASF monthly. Most recently, CrewAlert was updated on October 23, 2026 and ALPA ASF on October 16, 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.*