Alert Simulator vs Rock Identifier
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Alert Simulator
Read full descriptionHide full description
This app generates simulated alerts that could happen in a plane during cruise for pilot training. You can use the app in two ways: You can generate a random simulated alert at any time by pressing the Run One Now button. If you enable notifications, you can select a duration for cruise and frequency, press start flight and receive the notification in the background while doing other tasks, for example on your electronic flight bag. If you didn't enable notification you will just receive one simulated alert immediately. If you receive an simulated alert via a notification, you can click on it to see its detail on the app. The simulated alert can be either a situation, like an engine failure or a crew alerting message on your avionics, and you should determine and review all the steps required to handle the situation, identify and run checklists, information in pilot handbook, review the actions you should take. It relies on a predetermined database of alerts corresponding to the plane you select. Currently only two planes are available. The goal is for you to regularly go through the motion required for managing alert, so should a real alert happens it will be automatic. This app is open source on GitHub.
Rock Identifier
Read full descriptionHide full description
Identify rocks, minerals, crystals, and gemstones from a photo with Crystara. TAKE OR CHOOSE A PHOTO Photograph a find with your camera or select an existing image. Crystara analyzes it and returns a clear identification with a confidence score. EXPLORE THE DETAILS Learn about color, streak, hardness, crystal system, geological context, formation, common uses, estimated value range, and fascinating facts. BUILD YOUR COLLECTION Save identifications with their photos and dates, revisit past discoveries, and build a visual record of the stones you find. MADE FOR CURIOUS EXPLORERS Useful for rock collectors, geology students, hikers, crystal enthusiasts, gem hunters, educators, and anyone curious about the natural world. Crystara Premium provides unlimited identifications and full access to advanced results. Identification and value information is provided for educational guidance and should not replace professional geological or appraisal advice. Privacy Policy: https://sites.google.com/view/rock-identifier-crystal/ana-sayfa Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Alert Simulator at none against Rock Identifier's 2. Alert Simulator also leads on update cadence (every 2 weeks vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Rock Identifier sells 2 in-app purchases, starting at $3.99 per 7 days. Alert Simulator asks for nothing beyond the download.
Alert Simulator ships an update every 2 weeks, Rock Identifier every 6 months. The most recent releases landed on October 30, 2026 and October 9, 2026 respectively.
| Parameter | Alert Simulator | Rock Identifier |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks โ better | Every 6 months |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Brice Rosenzweig | Yusuf Ozmavi |
In-app purchases
Alert Simulator
No in-app purchases
Rock Identifier
- Weekly Pro (Best Plan)$3.997 Days
- Yearly Pro$49.991 Year
Questions
Is Alert Simulator free?
Is Rock Identifier free?
Do Alert Simulator or Rock Identifier have ads?
Which is updated more often, Alert Simulator or Rock Identifier?
Other comparisons















