NavCalc Dynamic vs Quantum Audio Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NavCalc Dynamic
This app calculates the course and speed needed to counteract current and wind effects for navigation. It visually displays these calculations on a compass rose, dynamically updating as parameters change. Useful for learning and solving real-world sailing problems.
- Calculate Course to Steer (CtS)
- Calculate Speed over Ground (SoG)
- Visual compass rose display
- Dynamic parameter updates
- Magnetic variation input
- Leeway and wind direction input
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NavCalc is a simple navigation calculator. Given a desired heading, boat speed, and the set and drift of current, NavCalc will display the Course to Steer (CtS) and Speed over Ground (SoG) that will be achieved on that course given the current. NavCalc draws a neat little picture of the heading, current vector, and course to steer on a 360º compass rose which includes both degrees True and Magnetic (if you enter a Magnetic Variation). NavCalc also allows you to enter degrees of leeway and wind direction, and will take leeway into account when calculating the CtS. NavCalc will dynamically update the drawing as you change any of the parameters (heading, boat speed, current set or drift, variation). NavCalc can be used to solve navigation problems like the ones you might find on the tests for Coastal Navigation courses from US Sailing or ASA. It’s also useful for building intuition about how current affects your boat’s course and speed over ground (or velocity made good) since it updates dynamically as you change any parameter.
Quantum Audio Generator
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Quantum Audio Generator is a focused tool for creating personalized frequency-based audio. Key features: • Multiple generation modes: Stereo, Left Channel, Right Channel, Binaural Beats, Harmonic Overlay • Flexible controls: frequency, left/right ear frequency, duration, volume, waveform, sample rate • Advanced effects: stackable enhancement options for richer sound design • Fast workflow: instant playback preview and file export • Multilingual UI: Simplified Chinese, Traditional Chinese, English, and Japanese Premium features: • Unlock 96000Hz sample rate • Unlock longer generation duration • Unlock advanced quantum effects Purchase Notice: • For pricing details, please check the subscription page in the app. • Non-auto-renewing subscription • Takes effect immediately after purchase • Can be cancelled anytime • Refund policy follows App Store guidelines • If membership does not take effect after payment, please click the Restore Purchase button on this page first. • Membership is bound to the Apple ID used for payment (when logged in). • For payment issues, please contact email: jingleguan@hotmail.com • Terms of Service:https://www.qryxis.com/QuantumAudioGenerator/agreement/terms-of-service.html?lang=en • Privacy Policy:https://www.qryxis.com/QuantumAudioGenerator/agreement/privacy-policy.html?lang=en • VIP Agreement:https://www.qryxis.com/QuantumAudioGenerator/agreement/vip-agreement.html?lang=en • By purchasing, you agree to the Terms of Service, Privacy Policy, and Premium Membership Agreement. The full text of these terms can be viewed within the app. We keep improving performance and usability so advanced audio creation stays simple and efficient.
Screenshots
Verdict
The clearest difference is in-app purchases: NavCalc Dynamic at none against Quantum Audio Generator's 1. NavCalc Dynamic also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price and ads 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
Both are free to download. Quantum Audio Generator sells 1 one-off in-app purchase. NavCalc Dynamic asks for nothing beyond the download.
| Parameter | NavCalc Dynamic | Quantum Audio Generator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 days | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 15 MB | 1 MB |
| Age rating | 4+ | 12+ |
| Developer | Richard Craddock | 天佑 伍 |
In-app purchases
NavCalc Dynamic
No in-app purchases
Quantum Audio Generator
- Monthly Premium Membership$5.99
Questions
Is NavCalc Dynamic free?
Is Quantum Audio Generator free?
Do NavCalc Dynamic or Quantum Audio Generator have ads?
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