# CrewAlert vs Review Explorer

The clearest difference is price: CrewAlert at Free against Review Explorer's $0.99. CrewAlert also leads on device support (4 vs 2) and iOS requirement (15.6 vs 17.0). Review Explorer's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 2). On ratings volume and ads there is nothing between them.

CrewAlert is free to download; Review Explorer costs $0.99 up front. CrewAlert sells 2 in-app purchases, starting at $1.99 per month. Review Explorer asks for nothing beyond the download.

Review Explorer 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, Review Explorer every 3 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CrewAlert | Review Explorer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/crewalert/id391351389/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/review-explorer/id6759175465/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 | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 34 MB | 3 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeppesen Systems AB](https://appshunter.io/developer/391351392) | [Matthew James Clower](https://appshunter.io/developer/1737060505) |

## 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 |


### Review Explorer

[App page](https://appshunter.io/ios/app/review-explorer/id6759175465)

Gain global market intelligence by aggregating and analyzing user reviews from over 175 storefronts. Utilize on-device AI for sentiment analysis, per-star insights, and AI-enhanced translation to uncover trends, identify weaknesses, and spot market gaps.

**Highlights:** Global review aggregation from 175+ storefronts, On-device AI sentiment analysis, Per-star rating insights, AI-enhanced translation, Targeted filtering by star rating, Persistent offline research

**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 Review Explorer free?

Review Explorer costs $0.99, with no in-app purchases.

### Which has better reviews, CrewAlert or Review Explorer?

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

### Do CrewAlert or Review Explorer have ads?

Neither CrewAlert nor Review Explorer shows ads.

### Which is updated more often, CrewAlert or Review Explorer?

CrewAlert ships an update every 2 months, and Review Explorer every 3 days. Most recently, CrewAlert was updated on November 1, 2026 and Review Explorer on October 31, 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.*