Fretmancer

Guitar setup & tuner workbench

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Fretmancer is an offline workbench for setting up guitars and basses, and for remembering what you did last time. It keeps a record per instrument, so the next setup starts from what you already measured instead of from scratch. No account, no ads, no subscription. FREE, FOREVER • Chromatic tuner. Microphone based, accurate to the cent, with a range that covers bass. • String tension calculator. Enter gauge, scale length and target pitch to get tension per string plus the set total. • Factory spec lookup. Published action, relief and radius figures, taken from manufacturer documentation. FRETMANCER PRO (ONE-TIME UNLOCK) • Per-instrument profiles. Each guitar or bass keeps its own scale length, string set and target spec. • Dated maintenance history. Every setup you record stays as a snapshot you can go back to. • Guided setup walkthrough. Truss rod relief, saddle action, nut height and intonation in dependency order. Change something early and the later steps get flagged for recheck. • Intonation checker. Compares your fretted note against the open string in cents, so you can see which way the saddle needs to move. • PDF setup sheets. Export what you measured, then share or archive it. OFFLINE There is no server, no login and no cloud sync. Your instruments and your logs sit on your device and nowhere else, and everything keeps working with the network off. The microphone is only used for pitch detection, in memory. Audio isn't recorded or stored, and nothing gets transmitted. WHO IT'S FOR • Players who do their own setups and want repeatable results • Anyone chasing fret buzz, high action, or notes that go sharp up the neck • Techs and luthiers keeping a record per instrument across visits • Anyone switching string gauges who wants to know the tension change first Buy it once. It's yours offline after that.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

The tuner now recovers if you denied microphone access, so you can grant permission and keep going. This version also adds an in-app privacy policy.

Version 1.0.2

The developer, JORGE MONTERO VARELA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    JORGE MONTERO VARELA
    Size
    23.9 MB
    Category
    Music
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Jorge Montero Varela
  • Developer Website
  • Privacy Policy

    • More by JORGE MONTERO VARELA

    You Might Also Like