Comparison

Alert Simulator vs Rock Identifier

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Alert Simulator

Features
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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.

About

Rock Identifier

Features
Read 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

Alert Simulator1 screens
Rock Identifier3 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences ยท 4 level
Alert Simulator versus Rock Identifier: the parameters behind the verdict, then further details
ParameterAlert SimulatorRock Identifier
PriceFreeFree
Update frequencyEvery 2 weeks โ€” betterEvery 6 months
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017 โ€” better
Further details โ€” not scored
Size4 MB37 MB
Age rating4+4+
DeveloperBrice RosenzweigYusuf Ozmavi

In-app purchases

None

Alert Simulator

No in-app purchases

2 purchases

Rock Identifier

Subscriptions2
  • Weekly Pro (Best Plan)$3.997 Days
  • Yearly Pro$49.991 Year

Questions

Is Alert Simulator free?
Alert Simulator is free to download, with no in-app purchases.
Is Rock Identifier free?
Rock Identifier is free to download, with in-app purchases available.
Do Alert Simulator or Rock Identifier have ads?
Neither Alert Simulator nor Rock Identifier shows ads.
Which is updated more often, Alert Simulator or Rock Identifier?
Alert Simulator ships an update every 2 weeks, and Rock Identifier every 6 months. Most recently, Alert Simulator was updated on October 30, 2026 and Rock Identifier on October 9, 2026.

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