Version 2.1.3 — Out Now

Pro tattoo machine control for The Scepter & audio tattoo machines.

Ink Weasel is the control app for The Scepter and every Electric Shark Tattoo audio tattoo machine — shaped waveforms, dual preset banks, hands-free voice, and a coil machine tuner built for professional artists who care about machine tech, not guesswork.

Get on the App Store See what's new
3 Waveforms
10 Preset slots
B1 + B2 Dual banks
Offline Works in the booth
Ink Weasel main screen — scope, B1/B2 banks, waveforms, and preset controls on iPhone

Hardware partner

Built for The Scepter & Electric Shark tattoo machines

Ink Weasel is the app side of the stack at electricsharktattoo.com — professional audio tattoo machine technology where amplified audio replaces old DC duty-cycle limits. The Scepter is a linear coil machine for cartridges (third-gen Innercoil audio). It runs AC/audio only — not DC. Waveform, Hz, amplitude, and most machine settings live in the app.

  • Scepter powerband: 80–100 Hz (factory-tuned via Ink Weasel)
  • Usable range: 1–110 Hz · electronically controlled 1–4 mm stroke
  • Frame: 7075 aerospace aluminum · carbon fiber drive bar
  • Power: AC / audio — requires Electric Shark audiopower + Ink Weasel
Scepter specs at Electric Shark → Scepter user guide → Setup & FAQ →

Release 2.1

A revolution in tattoo machine control — refined for 2026.

The biggest Ink Weasel update in years: a cleaner amp UI, everything tucked behind the ⋯ menu, coil Machine Tuner, voice control, and pro tools for artists running The Scepter and other Electric Shark audio machines.

See all features & screenshots →

Welcome to the future. Again.

Developed by Marcus Van Oosterum in collaboration with Richard Detore · Electric Shark Tattoo Machines

Download Ink Weasel 2.1 Explore The Scepter →