Supplemental Terms of Use & Privacy Policy

Instant Mastering — local audio analysis and mastering for macOS

Last updated: July 13, 2026

Short version: Analysis, playback, and mastering run locally. Instant Mastering PRO is a one-time purchase that unlocks WAV and M4A export. Mastering results are creative estimates and should be reviewed before release.

1. Scope & Apple Standard EULA

Instant Mastering (the "App") is distributed through the Mac App Store and is licensed, not sold. Apple's Standard Licensed Application End User License Agreement ("Apple Standard EULA") is the primary licence agreement. These Supplemental Terms describe App-specific functionality, purchases, privacy, and responsibilities and do not replace it.

By downloading, installing, purchasing, or using the App, you accept the Apple Standard EULA and, to the extent permitted by law, these Supplemental Terms. Mandatory legal rights always prevail over a conflicting provision.

2. Developer

The App is developed and provided by Sorin Nae ("Developer", "we", or "us"). Questions may be sent to [email protected].

3. App Functionality

The App imports supported audio, displays quality analysis metrics, offers three on-device mastering modes, lets users compare source and processed playback, and allows PRO users to export a mastered result as WAV (24-bit) or M4A. Current format and compatibility information is shown in the App and on the App Store product page.

Scores, tonal assessments, dynamics measurements, spatial assessments, processing choices, and output levels are computational and creative estimates. Results vary with the source, genre, arrangement, mix balance, recording quality, file format, and selected mode. The App is not a substitute for listening, metering, rights clearance, or professional engineering judgment.

4. Mastering Modes

The App provides three local mastering modes with different creative characteristics. They are processing aids, results vary with the source material, and no mode guarantees a particular artistic, technical, broadcast, or commercial result.

5. Instant Mastering PRO

Instant Mastering PRO is a one-time, non-consumable in-app purchase that unlocks export to WAV and M4A. It is not a subscription and has no recurring Developer charge. The free App can analyze, visualize, process, compare, and play back audio; exporting a mastered file requires PRO. The App does not offer a time-based trial.

Apple processes the purchase, regional price, taxes, payment details, entitlement, restore, and refund workflow. The Developer does not receive payment-card details or Apple Account credentials. Restoring PRO requires the purchasing Apple Account, a compatible Mac, and access to Apple's services. Refund requests are processed by Apple through reportaproblem.apple.com, without limiting mandatory legal rights against Apple or the Developer.

6. App Privacy and Local Processing

The Developer operates no Instant Mastering account system or App backend. The App does not upload your source audio, mastered audio, file paths, analysis values, or session choices to the Developer and contains no Developer-operated advertising, behavioral tracking, or analytics service. Audio analysis, processing, playback, and export are performed locally on your Mac.

An internet connection may be required to load StoreKit products, purchase PRO, restore purchases, or occasionally synchronize entitlements. Apple may process App Store, purchase, installation, crash, or optional diagnostic information under the user's settings and Apple's Privacy Policy. Apple may provide developers with aggregated analytics or diagnostic reports; the App does not add its own tracking to that Apple-controlled process.

7. Your Audio, Exports & Required Rights

You retain ownership of audio selected for processing and of exported results to the extent provided by applicable law. You are responsible for having permission to import, process, reproduce, master, export, distribute, publish, or commercially use the source and result. Selecting a file authorizes local processing for the requested function and does not transfer ownership to the Developer.

Review exported files before deleting source material, publishing, manufacturing, broadcasting, or delivering them to a client. Keep backups and independently check format, duration, loudness, clipping, beginning and end, metadata, and playback compatibility. The App does not guarantee a particular artistic, technical, platform, broadcast, or commercial acceptance result.

8. Licence & Intellectual Property

Subject to the Apple Standard EULA, you may use the App for personal or professional audio work. Except where applicable law expressly permits otherwise, you may not copy, modify, rent, sublicense, redistribute, reverse-engineer, decompile, disassemble, bypass purchase or technical protection, extract proprietary components or assets, or use the App unlawfully.

The App, source code, interface, documentation, processing implementation, and proprietary assets are protected by intellectual-property law and are owned by or licensed to the Developer, except for clearly identified third-party rights.

9. Support and Website Privacy

Sorin Nae is the data controller for personal information submitted through support channels or the Software Evolution website contact form. If you contact us, we receive information you voluntarily provide, such as your name, email address, message, App version, device details, or diagnostic files. Do not attach copyrighted audio, unreleased client work, passwords, payment-card details, or unnecessary sensitive information.

The website contact form is processed using Formspree, and the website is delivered through Cloudflare. Support information is used to answer requests, maintain security records, comply with legal obligations, or establish and defend legal claims, and is retained only as long as reasonably necessary for those purposes. The applicable legal bases are performance of a contract or steps requested by you, our legitimate interest in providing secure support, and legal obligations where applicable. Further website processing is described in the Website Privacy Policy.

10. Data-Protection Rights

The Developer normally has no server-side copy of audio processed only inside the App. For information voluntarily submitted through support, applicable law may provide rights of access, correction, deletion, restriction, objection, portability, and complaint to a supervisory authority. Requests may be sent to [email protected]. Romanian users may also contact the National Supervisory Authority for Personal Data Processing.

11. Warranties, Liability & Consumer Rights

The Apple Standard EULA contains the warranty and liability terms applicable to the App. To the maximum extent permitted by law, the App is provided "as is" and "as available" without a promise of uninterrupted operation, error-free analysis or export, a specific mastering result, or compatibility with every playback and distribution system.

Nothing in these Supplemental Terms excludes liability or any conformity, update, repair, price-reduction, termination, refund, or other right that applicable law does not allow to be excluded. Nothing reduces a protection or remedy provided by the Apple Standard EULA or mandatory consumer law.

12. Updates and Changes

The App and these Terms may be updated for maintenance, security, compatibility, functionality, or legal reasons. Material changes will be communicated by reasonable means, and no change retroactively removes a purchased PRO entitlement or mandatory consumer right. Where law requires consent, a change takes effect only after valid consent.

13. Governing Law

These Supplemental Terms are governed by Romanian law, without excluding applicable conflict-of-law rules. Consumers retain mandatory protections and courts available under the law of their country of habitual residence.

14. Contact

Email: [email protected]
Website: softwareevolution.ro