Oktopus Synthesizer

Oktopus Synthesizer

Omnipotential Instrument

6 ratings
6 reviews
$4.99

Details

  • Released
  • Updated
  • August 12, 2026
  • August 24, 2026

Features

Oktopus Synthesizer video #1 for iPhone
Oktopus Synthesizer video #2 for iPhone
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Oktopus Synthesizer screenshot #10 for iPhone
Oktopus Synthesizer screenshot #11 for iPhone
Oktopus Synthesizer screenshot #12 for iPhone
Oktopus Synthesizer screenshot #13 for iPhone
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About

This powerful iOS synthesizer and AUv3 extension allows for deep sound design and music creation. Shape sounds with 8 synth blocks, combine oscillators and samples, and utilize a flexible effects chain. It functions as a standalone instrument or within compatible DAWs.

8-block synth architecture
Oscillator and sample combination
AUv3 instrument support
Sample loading and playback
Flexible effects chain
MPE and MIDI input support
Built-in spectrometer
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What's New in Oktopus Synthesizer

1.0.4

August 24, 2026

+ Image-to-audio - convert image to full spectrum or snap to specific chromatic keys + Bug fix for PW crossing 50% with a click in samples due to incorrect flag use + Held keys with Hold mode are seen if triggered with MIDI + Bug fix for spectrometer that slipped to bottom buttons

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User reviews

Endless Exploration

Powerful synth with many pathways for sound design, UI is busy but not confusing. Oktopus is comparable to Synthmaster 2 in many ways, yet has more layering options (8 layers). I gave Five Stars, but I almost gave four stars as my iPad Air with M1 processor struggles with CPU.
If you have a fast CPU, then I highly recommend Oktopus synth!
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Response from developer

Thank you!! Yes it may be too demanding due to the synth architecture. It's like having 8 synths running in your device (if all blocks used simultaneously). And each individual block is capable of 64 unison sounds which alone may already be too much for a device. Although there's also a way to optimize it even more because generally the synth was designed for desktops. I'll keep in mind your important feedback! Thank you so much for 5 stars!!

Truncated screens portrait & landscape

Particle Chimes is another music instrument.

You added note hold, kind of. You need to be able to toggle on/off individual held notes, not all held notes by turning the feature off.

The settings screen the bottom cho settings are cut off in portrait and margins on n landscape.

There’s too many things wrong to list.

Again, there’s a lot of ‘stuff’ but there is no actual personality in the instrument. There’s nothing exciting when you play it.

(But thanks for your attempt to add note hold though.)
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Response from developer

UPD: Try 1.0.4 first Thank you for your review!! It's really important feedback! Keylock: this feature may be included in future updates. Particle Chimes is a bit of a weird comparison, because the synth has nothing to do with generative algorithms. All you can see is old-school DSP like in Sylenth, Massive, Gladiator, Serum, Vital, and FM8 plugins. You have real-time oscillating waveforms (sine, square, triangle), wavetables of ramps, and raw samples. And then you just mix/blend/modulate them together. Anyways, I'm happy you tried it; thank you for the rating.

My new favorite synth

I have been enjoying this synthesizer so much. I love the fact that it has so many LFO’s and I can assign them to basically anything. It’s working great in AUM and pretty much every other app that I’ve been testing it on. The app has a great look and is genuinely fun to interact with.

Response from developer

Hi Obis11! I appreciate your feedback! Please contact support@tatreal.pro or oktobugs@tatreal.pro - the pop-up screen shows this email right on the first start of the app. These issues you've pointed out will be fixed in 1.0.1, which is already under review by the Apple team. Hope it'll be approved soon, as it takes up to 5 days to get approval. AUv3 will be supplied within the next update. Thank you for your purchase!!! Can you please contact us and tell within email what type of MIDI controller you use? You may need to activate MIDI in the iOS settings menu for wired MIDI: Settings->Privacy & Security->Security->Wired Accessories->Always Allow If this has been done and the app still can't receive any MIDI, then please share your MIDI controller make/model/version in an email - this is very important information for us to get fixed the issue right away

Very cool!

Fun! Sounds great! Cool! Lots of oscillators!

Response from developer

Thank you so much! LOTS. Have you already tried to set 8 unison ramps/saws on OSC1 and OSC2, and then do max detune for both and turn fine-tune for each in the opposite direction to spread them more? It sounds so aggressive, OMG! Don't try it on all 8 OSCs, I warned you ;)

Missing keylock/notehold.

There’s a lot of ‘stuff’ but I detect no actual personality though, like Particle Chimes.

Response from developer

Thank you for your review!! It's really important feedback! Keylock: this feature may be included in future updates. Particle Chimes is a bit of a weird comparison, because the synth has nothing to do with generative algorithms. All you can see is old-school DSP like in Sylenth, Massive, Gladiator, Serum, Vital, and FM8 plugins. You have real-time oscillating waveforms (sine, square, triangle), wavetables of ramps, and raw samples. And then you just mix/blend/modulate them together. Anyways, I'm happy you tried it; thank you for the rating.

FAQ

What is Oktopus Synthesizer?

Oktopus Synthesizer is a deep iOS synthesizer and AUv3 extension designed for sound design, performance, and music creation within compatible DAWs. It offers a modular spirit with extensive sound-shaping capabilities.

What devices does Oktopus Synthesizer support?

Oktopus Synthesizer is available for iPhone, iPad, and iPod. It features a touch-friendly interface optimized for both iPhone and iPad music creation.

How much does Oktopus Synthesizer cost?

Oktopus Synthesizer is a paid application, priced at $4.99. There are no in-app purchases or subscription fees associated with its use.

Does Oktopus Synthesizer have ads?

No, Oktopus Synthesizer does not contain advertisements. It provides an uninterrupted music creation experience.

What is the age rating for Oktopus Synthesizer?

Oktopus Synthesizer has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger individuals interested in music creation.

How often is Oktopus Synthesizer updated?

The latest version, 1.0.2, was released on August 17, 2026, just five days after its initial release on August 12, 2026. This suggests a commitment to regular updates and improvements.

Can I use Oktopus Synthesizer with other music apps?

Yes, Oktopus Synthesizer functions as an AUv3 extension, meaning it can be loaded inside other AUv3-compatible iOS hosts and DAWs for integrated music production.

What kind of audio files can I import for sampling in Oktopus Synthesizer?

You can share Voice Memos, Audio Files, and Video clips to Oktopus Synthesizer to extract audio for sampling. Supported file formats include AIFF, MP3, WAV, and MP4.