Turn Radius Calculator vs Alert Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Turn Radius Calculator
This app helps pilots calculate turning radius and stall speed based on speed and bank angle. It's useful for evaluating strategies in scenarios like engine failure or tight situations, and for practicing different flight parameters.
- Calculate turning radius
- Determine stall speed
- Evaluate bank angles and speeds
- Calculate maneuvering speed
- Assess aircraft weight impact
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Have you ever wondered how speed and bank angle affect turning radius and stall speed? Practical applications include a turnback after engine failure or getting out of a tight spot. This handy calculator helps you evaluate your strategy and allows you to practice different bank angles and speeds at altitude to see how they affect your turn around results. Also, calculate how maneuvering speed is affected by aircraft weight and instantly calculate your maneuvering speed for any weight in order to protect your aircraft from exceeding load factor limits.
Alert Simulator
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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.
Screenshots
Verdict
The clearest difference is price: Alert Simulator at Free against Turn Radius Calculator's $4.99. Alert Simulator also leads on update cadence (every 2 weeks vs every 5 weeks). Turn Radius Calculator's advantage is iOS requirement (12.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Alert Simulator is free to download; Turn Radius Calculator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Turn Radius Calculator ships an update every 5 weeks, Alert Simulator every 2 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.
| Parameter | Turn Radius Calculator | Alert Simulator |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 27 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Flight Training Apps, Inc. | Brice Rosenzweig |
In-app purchases
Turn Radius Calculator
No in-app purchases
Alert Simulator
No in-app purchases
Questions
Is Turn Radius Calculator free?
Is Alert Simulator free?
Do Turn Radius Calculator or Alert Simulator have ads?
Which is updated more often, Turn Radius Calculator or Alert Simulator?
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