Syndt - Polyphonic Synthesizer 4+

Klevgränd produkter AB

    • 3.6 • 7 Ratings
    • $7.99



Syndt is a high quality polyphonic synthesizer with a lot of possibilities. The oscillator waveform can be morphed between pure sine to pure square and supports alternation of pulse width. Both the shape and pulse width can be modulated by two independent LFOs. Finetuned low pass and high pass filters combined with a separate filter attack setting (optionally based on velocity) makes possibilities to create some raw and interesting sounds.

The additional LFO can be shaped exactly as the oscillator, and optionally controls filters, gain and pitch (using a modulation wheel or just automatcally). This LFO can be synchronized to a AUv3 host.

Globally there’s a nice stereo chorus, ping pong stereo delay (that also can sync to a AUv3 hosts bpm) and EQ.

Key features:

* AUv3, works with AUv3 compatible hosts like GarageBand, Cubasis, Auria, AUM etc.
* 70 professionally made presets
* XY pad based oscillator and LFO (PWM on the X axis and morphs between sine and square on the Y axis)
* Independent mini-LFO (sine only) for each axis of the oscillator XY-pad.
* LP / HP filter with resonance
* LP Filter can be velocity sensitive
* LP Filter has an optional attack time
* LFO can affect LP filter, HP filter, gain level and pitch
* LFO has an optional attack time
* LFO can be syncronized with an AUv3 host (AUv3 mode only!)
* Ping pong stereo delay (optionally syncs to host)
* Stereo Chorus
* Three band EQ
* Legato mode with glide speed parameter
* Pitch bend range

OBS! Syndt oversamples the signal and uses sophisticated DSP features which makes it consume quite some CPU. An iPad AIR 2 or better is recommended if you’re planning to use many voices simultaneously.

A full documentation is available at

Feedback or suggestions? Drop us a mail: support(at) or @klevgrand on Twitter

What’s New

Version 1.1.2

Fixed a bug with preset recalls

Ratings and Reviews

3.6 out of 5
7 Ratings

7 Ratings

Bobbo924 ,

Needs legible labeling

Syndt sound nce enough, but the labels are in like 1/2 point type. On an iPad Pro, 12.9” model, I need strong reading glasses to see what the controls are. I understand that KG has a minimalist design philosophy, but part of minimalism is utility. Can’t see a thing. Interestingly, I tried to print out their 4-page “manual” and it squeezes and shrinks all four pages onto one piece of paper. What are these people, like 9” tall with enormous eyes? Hope they correct this in a future update. It has potential, but the illegibility makes it a pain to play with.

mrdogheadSHoGoAT ,

Simple and lovely

Sounds great with minimal tweaking, which is good, because there are not so many options to tweak. Sometimes that’s exactly the kind of synth app one needs. This one rides its simple design and great sounds right into the music.

A companion app allows a vector-synthesizer-like combination of presets, which adds a couple of extra ways to complicate the sounds.

Being an old entry on the platform, with a number of revision cycles, Syndt performs reliably well. Plus, the price is reasonable.

If you’re looking for something like this, you have come to the right place.

app_broken321 ,

Not working

App opens with keyboard and blank screen, when anything is touched, app crashes

App Privacy

The developer, Klevgränd produkter AB, 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.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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