Function Fitter vs Quantum Audio Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Function Fitter
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Function curve fitting using custom function that you enter. Reads data values either from file or manual entry, and tries to fit your function to the data by adjusting 1 to 4 parameters for a least-squares best fit. For enjoyment only, NOT for serious data needs. This is minimalist by design with no ads, no in-app purchases, no bells and whistles, and no fancy moving graphics to distract you, just fun. Note: Entertainment value only, fun using different parameter starting values.
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: Function Fitter at none against Quantum Audio Generator's 1. On price, ads, device support and iOS requirement 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. Function Fitter asks for nothing beyond the download.
| Parameter | Function Fitter | Quantum Audio Generator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 12+ |
| Developer | 29Apps LLC | 天佑 伍 |
In-app purchases
Function Fitter
No in-app purchases
Quantum Audio Generator
- Monthly Premium Membership$5.99
Questions
Is Function Fitter free?
Is Quantum Audio Generator free?
Do Function Fitter or Quantum Audio Generator have ads?
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