Maastr review
A collaborative web mastering workspace with AI processing and paid WAV downloads.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Maastr is a web-based AI mastering service for musicians, producers, sound engineers, and studios. It analyzes uploaded WAV or MP3 tracks and creates mastered versions for playback and comparison with the original. The workflow includes loudness and dynamic-balance enhancement, project collaboration, mix notes, revision history, and version tracking. Maastr is positioned particularly for loud, guitar-forward genres such as punk, metal, hardcore, and indie, while also supporting broader online music mastering workflows.
The published plans are annual and progress from Home Studio Wiz to Studio Expert and Industry Pro. All three include full master previews and project collaboration. Home Studio Wiz includes paid WAV downloads and limited dynamic and color settings. Studio Expert adds free MP3 downloads, paid WAV downloads, and multiple dynamic and color settings. Industry Pro includes free WAV downloads, new feature previews, and multiple dynamics and color settings. This structure makes the higher tiers more suitable for projects that need broader sound-shaping controls or regular WAV delivery.
Maastr’s strongest distinction is its collaborative project layer around AI mastering. Playback, original-versus-master comparison, mix notes, revision history, and version tracking give teams a way to review and organize iterations rather than treating mastering as a single file-generation step. The trade-offs are a web-only platform, a narrower control set on the entry plan, and paid WAV downloads on two tiers. Choose Maastr if collaboration and revision tracking matter alongside AI mastering; choose another option if you need a non-web workflow or more extensive controls at the starting tier.
Maastr pros and cons
- Where it wins
- AI mastering with original-versus-master comparison
- Project collaboration, mix notes, and revision history
- WAV and MP3 uploads with WAV downloads on paid plans
- Where it doesn't
- Web-only access limits platform flexibility
- Home Studio Wiz has limited dynamic and color settings
- WAV downloads are paid on some plans
Maastr fact sheet, pricing and score →
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