Testere Supersaw Synth AUv3
Massive trance sound
$7.99 · Designed for iPad
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TESTERE is a 7-oscillator supersaw synth where each voice stacks 7 saws with per-voice control over detune, phase, waveshape (flavor), stereo pan, and a sine wave sub oscillator.
Instead of micromanaging each oscillator manually, TESTERE uses distribution curves to control these offsets. You dial in a curve shape and a spread amount, and the synth applies the resulting values across all oscillators smoothly interpolated, musically controllable, and repeatable. This system allows for infinite combinations, from tight analog-like stacks to wide, animated swarms, all with a minimal set of parameters.
Each oscillator is a wavetable oscillator with a selection of saw waveforms. You can subtly vary the shape across oscillators or push it further for complex harmonic shifts. All detune, phase, flavor, and panning spreads are curve-driven and musically scaled, making the synth flexible but not overwhelming.
A clean sine sub oscillator is included for adding low-end weight, with an adjustable octave (set in settings) and a level control (in the FX panel).
Features:
- 7-saw stacked oscillators per voice, 8-voice polyphony
- Curve-based detune, phase, flavor, and pan spread
- Clean sine sub oscillator with octave and level controls
- Single global LFO with assignable target
- Analog-style ladder filter with rise/fall envelope
- ADSR amp envelope per voice
- Built-in arpeggiator
- Stereo ping-pong delay
- AUv3 plugin support
AUv3 Compatible Hosts:
Works as a plugin in GarageBand, Logic Pro for iPad, AUM, Loopy Pro, Cubasis, BeatMaker 3, and other AUv3-compatible hosts.
Whether you want to dial in tight classic stacks or explore chaotic layered textures, TESTERE’s curve system gives you deep control without micromanagement.
Ratings & Reviews
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This version
- Adds master gain control to the settings menu
- Adds master gain AU parameter
- Improves the Ping Pong Delay stereo spread
- Increases the delay time up to 2 seconds
- Fixes the delay tempo time sync
- Improves the oscillator stereo spread
- Makes toggled buttons more obvious
The developer, Cem Olcay, 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
- Cem Olcay
- Size
- 16.2 MB
- Category
- Music
- Compatibility
Requires iOS 12.0 or later.
- iPhone
Requires iOS 12.0 or later. - iPad
Requires iPadOS 12.0 or later. - iPod touch
Requires iOS 12.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Cem Olcay

