Midi Poly Grid vs Testere Supersaw Synth AUv3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Midi Poly Grid
This app functions solely as a MIDI controller, requiring a host application or DAW to produce sound. It offers intuitive pad controls for melodies and finger drumming, with advanced modulation options like MPE and polyphonic aftertouch. Connect virtually or via USB/Bluetooth to other devices and DAWs.
- Size-adjustable grid of pads
- MPE and polyphonic aftertouch modulation
- Custom grid creation
- Virtual MIDI connection
- Preset saving
- Multiple layouts and colors
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# Midi Poly Grid This App is Open Source. Access the code here: https://github.com/anzbert/beat_pads ## Important Disclaimer This App is **ONLY** usable as a Midi Controller. It does **NOT** produce any sound on its own and requires a host application or a second device with a DAW or other sound production app. ## Information Midi Poly Grid is a lightweight Midi Controller app for mobile phones and tablets for melodies and finger drumming at home and on the go. Connections can be made virtually to other apps via platform midi channels, or via USB or Bluetooth Midi to other devices. This app aims to be an easy-to-use pad input device featuring a variety of layouts, intuitive playability and modern modulation options, such as MPE and Polyphonic Aftertouch. It was designed for people that prefer pads to pianos! The focus of this app is not to be a jack-of-all-trades Midi swiss army knife, but instead to be a great at one thing: Intuitive and versatile pad controls. ## Features - A size-adjustable grid of pads for finger drumming and melody input - Various layouts and colors, inspired by the Ableton Push - Presets can be saved with different pad setups - Innovative MPE and polyphonic Aftertouch modulation with graphical feedback - Push Style MPE pitchbend and slide - Send Velocity by Y position on pad, randomly or with a fixed value - Usable as a standard MIDI device with any PC, Mac or other USB or Bluetooth device - Optional controls, such as Pitch Bend, Mod Wheel and Sustain - Highligh a large number of musical scales - Receives Midi Notes, making the pads usable like a Launchpad - Custom grid creation based on the note intervals on the X and Y Axis to create Grids inspired by the Harmonic Table, Wicki Hayden, MidiMech and others - Supports virtual Midi connection to other apps on your device - Built-In support for the popular finger drumming courses from XpressPads.com - And more... ## Feedback and Contributions Anyone is most welcome to contribute, report an issue or start a discussion in the Github repository. Thanks! ## Licence Licenced under GPL3. The code in this project is freely usable in any other open source project. Enjoy! ## iOS Specific Information Can be used with any Mac via USB, Bluetooth Midi or WiFi. Usage with PC is limited to WiFi with free third-party software (rtpMidi), and USB with third-party USB midi connectors, due to Apple's limited implementation of USB Midi on iOS. AUv3 is unfortunately not supported at this time, as it is currently impossible with Flutter. More info about that here: https://github.com/flutter/flutter/issues/16092
Testere Supersaw Synth AUv3
This powerful synthesizer offers 7-oscillator supersaw voices with per-voice control over detune, phase, and pan. Utilize distribution curves for smooth, musical control over complex soundscapes, from tight analog stacks to wide, animated textures.
- 7-saw stacked oscillators per voice
- Curve-based sound parameter distribution
- Sine sub oscillator
- Global LFO
- Analog-style ladder filter
- ADSR amp envelope
- Built-in arpeggiator
- AUv3 plugin support
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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.
Screenshots
Verdict
The clearest difference is price: Midi Poly Grid at $3.99 against Testere Supersaw Synth AUv3's $7.99. Midi Poly Grid also leads on ratings volume (8 vs 1). Testere Supersaw Synth AUv3's advantage is iOS requirement (13.0 vs 15.0). On rating, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Midi Poly Grid costs $3.99 and Testere Supersaw Synth AUv3 $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Midi Poly Grid against 5.0 for Testere Supersaw Synth AUv3. That said, the two scores are not equally well evidenced: Midi Poly Grid has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Midi Poly Grid ships an update every 11 days, Testere Supersaw Synth AUv3 weekly. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | Midi Poly Grid | Testere Supersaw Synth AUv3 |
|---|---|---|
| Price | $3.99 — better | $7.99 |
| Rating | 5.0 (8 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 — better | 1 |
| Update frequency | Every 11 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Andreas Mueller | Cem Olcay |
Customer experience
Midi Poly Grid
Testere Supersaw Synth AUv3
In-app purchases
Midi Poly Grid
No in-app purchases
Testere Supersaw Synth AUv3
No in-app purchases
Questions
Is Midi Poly Grid free?
Is Testere Supersaw Synth AUv3 free?
Which has better reviews, Midi Poly Grid or Testere Supersaw Synth AUv3?
Do Midi Poly Grid or Testere Supersaw Synth AUv3 have ads?
Which is updated more often, Midi Poly Grid or Testere Supersaw Synth AUv3?
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