MIDI Shimmer
Music
$1.99
MIDI Shimmer turns your iPhone or iPad into a professional synthesizer with a true shimmer reverb engine.
Connect any MIDI keyboard wirelessly via Bluetooth LE or wired via USB-C, and instantly access 28 hand-crafted presets across five categories: Pads, Keys, Strings, Brass & Wind, and Synth.
SHIMMER REVERB
Shimmer reverb is the ambient effect behind countless iconic pads and soundscapes: every note is pitch-shifted up one octave and fed into a long cathedral reverb, creating a glowing halo of sound that trails above the note you play. MIDI Shimmer runs two independent FX buses in parallel — a natural hall reverb and the shimmer path — both continuously adjustable with dedicated sliders.
FEATURES
• 28 presets across Pads, Keys, Strings, Brass and Synth — including a Korg D1 E-Piano
• True shimmer reverb — parallel octave-shifted cathedral reverb bus
• Dual FX Mix panel — Reverb, Shimmer, and Master Volume sliders per preset
• Bluetooth LE MIDI — connect wirelessly to adapters like the Yamaha MD-BT01
• USB MIDI — plug in any keyboard via USB-C hub
• Real-time chord detection — names every chord you play (maj7, m9, sus4, inversions)
• Chord history breadcrumb — scrollable log of your progression
• Built-in demo — tap ▶ to hear the synth without a keyboard
• Sustain pedal support (MIDI CC 64)
• Background audio — sound continues when screen locks
• Adaptive portrait and landscape layout for iPhone and iPad
• Ultra-low latency via AVAudioEngine
• No account, no subscription, no internet required
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New: Shimmer Damping
Tame the shine. A new Damping slider lets you darken the shimmer's octave-up halo — from bright and glassy to warm and smooth — so every pad, key, and pluck sits exactly where you want it.
Your tweaks now stick: Reverb, Shimmer, Damping, and Volume settings are remembered per preset, even after you close the app.
The developer, Heinrich Krupp, 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
- Heinrich Krupp
- Size
- 352 MB
- Category
- Music
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Henry Krupp
