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Maastr
What Maastr is
Maastr is a web-based AI mastering service tuned for loud, guitar-forward music such as punk, metal and hardcore. Users upload WAV or MP3 files, and Maastr says its audio engine increases loudness while maintaining clarity and dynamic balance. The service also supports collaborative project work: tracks can be shared, versions managed and feedback collected in one place. Version tracking, mix-note timelines and revision history organize changes. Free users receive one balanced master to review, and the free try requires no credit card. Paid plans provide full master previews, collaboration and different download or settings options. Home Studio Wiz costs $90 a year, Studio Expert costs $180 a year, and Industry Pro costs $450 a year. WAV export is supported. Maastr launched in 2020 and names Jay Maas as CEO and Joe Tagliaferro as CTO. It says Stripe processes payments and that it does not store or collect card details.
Who it suits
Maastr suits musicians and collaborators working on loud, guitar-led genres. It is useful for projects needing shared tracks, version history and feedback alongside mastering.
What it does well
- Accepts WAV and MP3 uploads
- Designed for loud guitar-forward genres
- Shared tracks and project collaboration
- Version tracking and revision history
- Free try without a credit card
What to know first
- Free use provides one balanced master
- Paid plans are billed annually
- Download terms differ by plan
- Absolute security is not guaranteed
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Studio Expert | $180.00/year · Full master previews · Project collaboration · Free MP3 downloads · Paid WAV downloads · Multiple dynamic and color settings | $180 a year |
| Industry Pro | $450.00/year · Full master previews · Project collaboration · Free WAV downloads · New feature previews · Multiple dynamics and color settings | $450 a year |
| Home Studio Wiz | $90.00/year · Full master previews · Project collaboration · Paid WAV downloads · Limited dynamic and color settings | $90 a year |
As maastr.io lists them, read 4 Oct 2026. The maker's own page has the final word.
Verdict
Maastr combines AI loudness-focused mastering with collaboration and revision tools. Its free review option provides a starting point, while annual plans determine previews, downloads and available mastering controls.
Facts from Maastr's own pages
- Audio formats
- The homepage says users can upload WAV and MP3 files. · maastr.io, 4 Oct 2026
- Collaboration
- Users can share tracks, manage versions, and get feedback in one place. · maastr.io, 4 Oct 2026
- Founded
- 2020 · maastr.io, 28 Sept 2026
- Free sign-up
- The homepage offers a free try and says no credit card is required. · maastr.io, 4 Oct 2026
- Free use
- The company says free users receive a single balanced master to review. · maastr.io, 4 Oct 2026
- Intended genres
- Maastr is designed especially for loud, guitar-forward genres such as punk, metal, and hardcore. · maastr.io, 4 Oct 2026
- Maker and launch
- Maastr says it launched in 2020 and names Jay Maas as CEO and Joe Tagliaferro as CTO. · maastr.io, 4 Oct 2026
- Mastering output
- Maastr says its audio engine boosts loudness while maintaining clarity and dynamic balance. · maastr.io, 4 Oct 2026
- Payment handling
- Maastr says it does not store or collect payment card details and names Stripe as a payment processor. · maastr.io, 4 Oct 2026
- Security
- Maastr says it uses commercially acceptable means to protect personal data but cannot guarantee absolute security. · maastr.io, 4 Oct 2026
- Support
- The privacy policy says users can contact the company with requests and that it will try to respond as soon as possible. · maastr.io, 4 Oct 2026
- What it does
- Maastr is an AI-powered online mastering service tuned for loud music. · maastr.io, 4 Oct 2026
- Workflow features
- Maastr includes version tracking, mix note timelines, and revision history. · maastr.io, 4 Oct 2026
Where Maastr stands on Freedom251
- AI Music Mastering Software#20 of 50