AI Mastering vs Maastr
AI Mastering
aimastering.comMaastr
maastr.ioSide by side
| Figure | AI Mastering | Maastr |
|---|---|---|
| Price from | Free | $7.50/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 2 | 3 |
| Spec score · AI mastering tools | 9.1 (#1) | 7.7 (#27) |
| Support | The site lists email and telephone contact options, and the privacy policy directs policy inquiries to the email contact listed under Service Provider. | The privacy policy says users can contact the company with requests and that it will try to respond as soon as possible. |
| What it does | AI Mastering is an online service that automatically improves music and balances loudness and dynamic range. | Maastr is an AI-powered online mastering service tuned for loud music. |
Plans
In their own words
AI Mastering
AI Mastering is an online service that uses AI to master audio with the aim of improving music sound quality. Its limiter can balance loudness and dynamic range, while the web interface lets users set target loudness and mastering level. It also supports drag-and-drop uploads, output-format customization, spectrum analysis, and loudness analysis. The API supports audio upload and download, mastering, and changes to target loudness and mastering level; its documentation links JavaScript (Node) and Ruby client libraries and tutorials. An offline desktop version is available, and the maker says its focus is shifting toward that version rather than the API. Offline file size depends on the computer’s memory, while the online service has file limits. The maker says online waiting time cannot be shortened and suggests using the offline version to reduce it. A bass-preservation option can reduce low-frequency attenuation. Supported input formats are WAV, MP3, and MP4, and WAV export is available. The free plan lists unlimited mastering, and users retain control over their mastered tracks without service restrictions.