69 Scales
Pentatonics, modes, blues, jazz, exotic scales. Interactive 20-fret fretboard with auto-calculated fingerings.
Available now · macOS
Train your bass,
Train your bass,
on Mac.
Visualize scales, tune up, practice with different amps and effects. The bass player's practice companion for Mac. No subscription, no overkill.
Press coverage and early feedback
UnitBasse just launched. Here is what the press and the first users are saying.
MacGeneration
Press
Fully VoiceOver compatible — rare enough in this field to highlight.Read article (FR) → Audiofanzine Press
Native macOS application dedicated to bass practice.Read article (FR) → JackSim User
Tried and adopted! So much lighter and more elegant than IK Multimedia's apps.Read comment (FR) →
Everything to practice
A complete suite of tools to learn, practice, and progress
Pro Tuner
Ultra-precise chromatic detection via NSDF algorithm. Adjustable A4 reference from 430 to 450 Hz.
8 Amps
Thunder, Velvet, Granite, Crystal... Sounds inspired by the amps that shaped bass history.
22 DSP Effects
Classics and creative ones. And you can load your own Audio Units plugins.
The app in pictures
Four modules at the heart of UnitBasse. Click any screenshot to enlarge.
Scales module
69 scales displayed on a full fretboard, with auto-calculated fingerings, descriptions and tips. Notes, intervals or degrees as you choose.
Amp module
Eight vintage and modern amp models, five cabinets (4×10, 1×15, 8×10, 1×12, DI). Classic Gain, Bass, Mid, Treble, Drive, Blend, Master controls.
Pedalboard
Twenty-two internal effects organized by family — dynamics, filter, gain, modulation, time, creative. Plus a chain to load your own Audio Units plugins (not included).
Chromatic tuner
Detection through NSDF algorithm, accurate to the cent. Adjustable A4 reference from 430 to 450 Hz. Real-time tracking of all four strings.
Modeling
8 Characterful Amps
Modelings inspired by the amp heads that shaped the sound of modern bass. Practice with a sound that fits your style, or explore new territories.
Thunder
60s · The definitive vintage tube toneVelvet
50s · Classic tweedGranite
80s · Hi-fi powerCrystal
80s · Bright and articulateTempest
90s · British and thickMirage
60s · Nasal midsEclipse
80s · Modern BritishObsidian
2010s · Modern metal22 DSP Effects
All the classics plus 6 exclusive creative effects
Noise Gate
Compressor
Boost
Octaver
Wah
Env Filter
Overdrive
Distortion
Fuzz
Chorus
Flanger
Phaser
Tremolo
Delay
Reverb
EQ
Swarm
Plasma
Fracture
Warp
Synth
Tape
One price, everything included
No subscription, no in-app purchases. Ever.
$17.99
Single purchase · Free updates for life
- 69 scales with fretboard visualization
- Ultra-precise chromatic tuner
- 8 characterful amp models
- 22 real-time DSP effects
- Loads your own AU plugins (not included)
- Detachable metronome with tap tempo
- 4 tunings (Standard, Drop D, D Std, 5-string)
- 14 languages included
Answers to the questions we get the most
Everything you need to know before buying UnitBasse.
Does UnitBasse let me record my performances?
No. UnitBasse is a practice app, not a studio. To record your music, use GarageBand (free) or Logic Pro — they do that very well.
UnitBasse fills a different need: helping you practice better, with no setup, no overkill. Launch it, play, progress.
Which audio interfaces are compatible?
Any standard macOS audio interface: Focusrite, PreSonus, MOTU, Apogee, RME, Universal Audio, SSL, Audient, Behringer, etc.
The Mac's built-in mic also works for testing, but a dedicated interface with an instrument input (1/4" jack) is recommended to plug your bass directly.
Do I need advanced music theory knowledge?
Not at all. UnitBasse covers all levels:
👶 Beginners: simple scale visualization, accurate tuner, automatic fingering display.
🎓 Intermediate: modes (Dorian, Mixolydian…), arpeggios, chords associated with each scale.
🎯 Advanced: exotic scales (Japanese, Arabic, Persian, Balinese), bebop, complete theory.
Every scale is documented with description, usage tips, and musical styles.
Is there a free trial?
No free trial, but detailed demos and a full press kit to give you a precise idea.
UnitBasse is a one-time purchase with no subscription, so the commitment stays low: $17.99 once — less than a month's subscription to a competing app.
Why a one-time purchase instead of a subscription?
Because bass players are tired of subscriptions. UnitBasse is a tool, not a service.
Buy once, use forever. Free lifetime updates. No internet connection required. No tracking. No in-app purchases. Ever.
How many languages are supported?
14 fully translated languages: French, English, German, Spanish, Brazilian Portuguese, Italian, Dutch, Japanese, Simplified Chinese, Traditional Chinese, Korean, Russian, Polish, Turkish.
UnitBasse is also fully accessible via VoiceOver in each of these 14 languages — a unique differentiator on the market.
Compatible with Intel Macs or Apple Silicon only?
Both. UnitBasse is built as a Universal 2 binary (Apple Silicon and Intel), with no performance compromise.
Minimum requirements: macOS 14 (Sonoma) or later.
Can I use my own Audio Unit (AU) plugins?
Yes. UnitBasse doesn't include any plugins: it loads the ones you already own and have installed on your Mac (compressors, EQs, amp simulators, effects…, free or bought from their makers).
You can add them to UnitBasse's effects chain, on top of its 22 built-in effects.
The amp or tuner shows an error when I turn it on. What should I do?
UnitBasse needs access to your microphone / audio input to process your bass sound in real time. If macOS blocks this access, the amp can't start.
To grant access: open System Settings → Privacy & Security → Microphone, enable UnitBasse in the list, then fully quit the app (⌘Q) and relaunch it. The amp will work normally.
The app quits when I use an external Audio Units plugin. What should I do?
UnitBasse can host your Audio Units plugins, but a faulty third-party plugin can crash the app hosting it — this is independent of UnitBasse.
Make sure the plugin is up to date, or remove it if the problem persists. These issues are the plugin vendor's responsibility.