J.J.Moon AUv3 Plugin
Acoustic guitar FX for AUv3
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Acoustic guitar curve, soft comp, stereo width and room — one AUv3 insert.
Seven days free, then one purchase — no subscription.
Body, air, and string detail — the shape of a well-mic'd acoustic, without
a rack of EQ.
jj-moon is an acoustic-guitar curve engine in a single AUv3 insert. Four
blocks in signal order, each with its own on/off, plus a master strip.
SHAPE — A fixed multi-band target aimed at great acoustic recordings: rumble
out, body in, boxiness out, soft mid dip, string presence, air on top. Three
voices — Steel, Nylon, Flamenco — share the same knobs. One Curve amount for
how far you go, Wood for body vs sparkle, Presence for the strings. This is
the block the whole plug-in is built around.
COMP — An optical compressor with program-dependent release. Soft by design
for acoustic dynamics. One Comp knob for threshold, ratio and make-up
together, plus Attack and Release. A gain-reduction meter shows what it is
doing.
WIDTH — Stereo micro-pitch and short delay (the same family of trick as a
classic microshifter), with a Focus crossover so the body stays centred
while the highs open up.
SPACE — A short stereo double with gentle flutter, into a soft acoustic
room bloom. Not a spring tank — just a little air around the instrument.
FIFTEEN FACTORY PRESETS
Default, Fallen Leaf, Fingerstyle, Piezo Soft, Stereo Porch, Close Mic,
Moon Room, Strum, Curve Only, Nylon, Concert Hall, Spanish Soft, Flamenco,
Rasgueado, Soleá. Save your own from the preset window; swipe left to
rename or delete.
WORKS WHERE YOU WORK
An Audio Unit v3 effect: GarageBand, Logic for iPad, AUM, Cubasis,
BeatMaker, and any other AUv3 host. The included app is a working player —
six acoustic demo parts are bundled (steel + nylon), or run your own
playing through the microphone.
The panel is drawn procedurally rather than assembled from bitmaps, so it
stays sharp at whatever size your host gives it, on a phone or a 13-inch
iPad. Moonlight, Slate, Field Green, or Tweed finishes.
FREE TO TRY
Seven days free from first launch. No account, no signup, no subscription.
After that, one purchase unlocks it permanently on all your devices. If you
do not buy it, the editor keeps working and audio passes through dry —
nothing you built disappears.
jj-moon is an original effect. Preset names point at a feel or a place.
It is not affiliated with, endorsed by, or associated with any artist,
label, or other plug-in maker, and does not recreate any particular
recording.
• Shape: the Steel / Nylon / Flame buttons no longer split their names
onto two lines on iPhone and on large iPads, and on a 13-inch iPad the
Shape knobs now match the size of the other sections.
• Meters: with more than one jj-moon open in the same host, each copy
now shows only its own levels.
• Lower memory use when the editor is opened and closed repeatedly.
• Smaller fixes and internal clean-up.
The developer, Petar Gerov, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Petar Gerov
- Size
- 7.9 MB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- jj-moon Unlock $2.99
- Copyright
- © 2026 Gerov
