Maastr

Plans and prices

Every plan, in full

On the record

Audio formats

The homepage says users can upload WAV and MP3 files.maastr.io · read 4 Oct 2026

Collaboration

Users can share tracks, manage versions, and get feedback in one place.maastr.io · read 4 Oct 2026

Free sign-up

The homepage offers a free try and says no credit card is required.maastr.io · read 4 Oct 2026

Free use

The company says free users receive a single balanced master to review.maastr.io · read 4 Oct 2026

Intended genres

Maastr is designed especially for loud, guitar-forward genres such as punk, metal, and hardcore.maastr.io · read 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 · read 4 Oct 2026

Mastering output

Maastr says its audio engine boosts loudness while maintaining clarity and dynamic balance.maastr.io · read 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 · read 4 Oct 2026

Security

Maastr says it uses commercially acceptable means to protect personal data but cannot guarantee absolute security.maastr.io · read 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 · read 4 Oct 2026

What it does

Maastr is an AI-powered online mastering service tuned for loud music.maastr.io · read 4 Oct 2026

Workflow features

Maastr includes version tracking, mix note timelines, and revision history.maastr.io · read 4 Oct 2026

Alternatives to Maastr

T TrackGleamAndroidiPhone & iPad+4 AM AI MasteringAndroidiPhone & iPad+7 L LoudlyAndroidiPhone & iPad+2 RM RoEx MasteringWebWindows+1 M MasteringBOXAndroidiPhone & iPad+1 OM One MasterWeb WA WhitePrint AudioEngineWebAPI M MatcheringWebWindows+4

Every alternative, ranked