Echo Pitch v3.4 by Avi Bortnick

Developed by guitarist Avi Bortnick (known for his work with John Scofield), Echo Pitch is designed for musicians looking for rhythmic pitch-shifted delays rather than standard echo. The v3.4 update focuses on refining the user experience, specifically addressing UI scaling for newer iPad and iPhone screens and improving AUv3 host stability. It remains a straightforward tool that provides four independent delay lines, each capable of shifting pitch by intervals (octaves, fifths, etc.) or semitones.

The app’s utility lies in its simplicity. Instead of overwhelming the user with complex modulation matrices, it offers four clear channels with controls for delay time, feedback, pitch, and volume. This makes it particularly effective for creating polyphonic textures or “shimmer” style effects without deep menu diving. In v3.4, the MIDI implementation has been tightened, allowing for more reliable mapping of delay times and pitch intervals to external hardware or software sequencers like Loopy Pro.

Main New Update Features

• UI Refinements: Updated interface elements to better accommodate varied screen aspect ratios on the latest iOS devices.
• AUv3 Stability Fixes: Improved performance when running multiple instances within hosts like AUM or Logic Pro for iPad.
• Improved MIDI Mapping: Enhanced response to external MIDI CC messages for real-time control of pitch and feedback.
• Updated Preset Management: Streamlined saving and recalling of user-created presets within the library.

Core Key Features

• Four Independent Delay Lines: Each with its own pitch, time, and feedback settings.
• Pitch Shifting: Adjust pitch by semitones or preset intervals for harmonic delay patterns.
• AUv3 Support: Functions as a plugin within all major iOS DAWs and host applications.
• Low Latency DSP: Optimized for live performance, particularly for guitarists and vocalists.
• Intuitive Interface: A single-page layout that provides immediate access to all four delay channels.

App Price: $4.99 
In-App Purchases: None

Original Release: December 2016, Latest Update (v3.4): April 28, 2026