# TC-11 — user reviews

> 172 indexed App Store user reviews of TC by Bit Shape, rated 4.80/5 from 68 ratings.

- Source: https://appshunter.io/ios/app/tc-11/id488577050/reviews
- App overview in markdown: https://appshunter.io/ios/app/tc-11/id488577050.md
- Rating breakdown: 5★ 62 · 4★ 3 · 3★ 1 · 2★ 1 · 1★ 1

## What do users think of TC?

Overall sentiment: positive

**Pros**

- 🎨 Innovative touch-screen interface design
- 🎵 Exceptional sound quality and synthesis engine
- 🎹 Unique iPad-optimized instrument approach
- 🎚️ Highly customizable and deep sound design capabilities
- 🎭 Expressive performance control with multitouch gestures
- 📱 Excellent use of device sensors (gyroscope, accelerometer, compass)
- 🎪 Inspiring and creative musical experience
- 👨‍💻 Responsive and supportive developer
- 📚 Comprehensive documentation and tutorials available
- 🔄 Regular updates and improvements
- 🎯 Versatile for ambient, experimental, and sound design
- 🎬 Beautiful visual feedback during performance

**Cons**

- 🐛 Frequent crashes on opening and during use
- ⚠️ Stability issues with recent updates
- 🎹 Difficult learning curve for beginners
- 🔌 No MIDI support or DAW integration
- 🎼 Limited ability to play precise melodies
- 💰 High price point for an app
- 🔗 No Audiobus/IAA compatibility issues reported
- 🎚️ Confusing patch programming interface
- 📊 Limited visual control feedback during editing
- 🎵 Inconsistent sound quality across patches
- ⚙️ Complex routing system
- 🎯 Not suitable for traditional keyboard-style playing

**Commonly reported bugs**

- App crashes upon opening after recent updates
- Black screen crashes when launching
- Crashes when adding patches to folders
- Crashes within Audiobus after 13.1 update
- AudioCopy button crashes on iPad 3
- Unable to download latest version
- Glitches and crashes with complex patches
- Audiobus integration issues causing crashes
- Performance issues on older iPad models

**Most requested features**

- MIDI support and DAW synchronization
- Ability to record and playback motion gestures
- Sample import and granular synthesis capabilities
- Microtonal tuning support (Scala files)
- Note hold function per surface
- Mixer for oscillator volume balancing
- Scale constraint for melodic playing
- Garage Band export support
- Real-time preview during patch editing
- Polyphonic aftertouch support
- Multiple FM oscillators
- Bluetooth MIDI connectivity

## Newest reviews (18 of 172)

### 2/5 — Currently Not Working

*2026-02-13*

Since the update crashes out upon opening.

### 3/5 — Great program but broken!

*2026-01-22*

Every time I open it up, it crashes. Black screen for a moment and then completely disappears. Please fix.

### 4/5 — Please interface with the outside world!

*2023-11-11*

This is a very cool concept but having no midi or ableton sync limits it’s use.
Also being able to import samples and waveforms would make this a monster app.

### 4/5 — Rec button

*2022-11-26*

Where is the recording button?

### 5/5 — Just Brilliant

*2022-02-20*

It's hard to describe how well designed this instrumental piece of art is ...
Beautiful Depth ...  just need to figure out how to implement it 😃

### 5/5 — Fabulous instrument

*2021-08-01*

Inspiring synth with distinct sound and expression

### 5/5 — Having a blast

*2021-03-17*

Just discovered the 4 patches at once. Way cool.

### 5/5 — The best iOS synth for me!

*2020-01-27*

I have been playing synthesizers since 1975, lots of hardware and software ones.
TC-11 is by far, my favorite on the iPad.

It takes full advantage of all the iPad’s unique capabilities.
With the different play screen options, that use multitouch, and directional/motion sensors to control the various synthesis parameters, there is nothing else like it.

Along with the unique user interface, it has the best synth engine to use with it.

To get the most out of it, read the comprehensive user guide, that you can download from inside the app, or from the developers website.

It comes with a lot of great presets, that make a wide variety of sounds, so you can start enjoying it right away.
Working good with my original iPad Air, and my 12.9” iPad Pro.

Without a doubt, the best money I ever spent on an iPad synth app.

Thanks very much Kevin, and please keep it current, with updates as long as you can.
Best wishes.
Dave

### 5/5 — Playful and inspiring

*2020-01-19*

Nice work to the devs!

### 5/5 — Intuitiver Quantensprung 🕉

*2019-10-20*

Seit 36 Jahren mache ich elektronische Musik, angefangen mit dem Commodore 64 und Modtrackern 💜. Dies ist weit mehr als ein Synthesizer, es ist ein echtes Musikinstrument im klassischen Sinne einer Geige oder eines Saxophons. Die intuitive Bedienung und das sofortige klangliche Ergebnis ist der Schlüssel für unbeschreibliche Klangwelten. TC-11 ist meine lang gesuchte Ergänzung zu Waldorfs Nave, Sugar Bytes Factory, Audiokits D1 und zu meinen Moogs. 

Wer das Musik machen liebt: sofort kaufen und loslegen 🥳

Kevin, ganz herzlichen Dank, Du hast der Welt des Musik machens eine neue Dimension eröffnet 💜👍

### 5/5 — Love the noise but....

*2019-10-04*

Experiencing a lot of crashes within AUM after the 13.1 update. Working on iPad Air 2. Hope to see this fixed soon, thanks!

### 5/5 — Génial

*2019-09-15*

Bien plus performant que le Tc-Performeur .
Je l adore en live et en impro ..
Un grand merci au développeur.
Trop Génial !

### 2/5 — Does not work after a while

*2019-07-13*

I really love this App, the sounds, the maniability and the customizable possibilities. BUT it does not work anymore on my iPad. It freezes all the time. This is so disappointing. Contacted the author and had no answer.

### 5/5 — Absolutely incredible

*2019-04-13*

Just wow, the fun factor is unprecedented, it really is top notch, I only wish you could transfer the touch to keys as I would love to experiment with a keyboard, is this possible !!!??

### 5/5 — What an iPad synthesiser interface should be

*2019-03-12*

I've been astonished by this: it is almost the first (Jasuto might count as the first) app to really make good use of a tablet for what it actually is rather than as a sort of fancy TV screen on which you can draw pictures of older interfaces.  It's doing for interfaces what the DX7 did for synthesis: now anyone who looks can see that there is a whole different approach to things, and anything else will seem old-fashioned.

I wrote the above a long time ago: nothing has changed my opinion.  This is a little bit of a better future that never happened which has somehow leaked into the present.  It's just brilliant.

### 5/5 — Sieht toll aus und klingt

*2019-02-03*

Sehr geil. Ich liebe dieses Instrument! ❤️

### 5/5 — Amazing! Just one thing.

*2018-11-25*

I just got this app and absolutely love it! It’s so much fun to play and sounds amazing. There is just one thing that is missing though, the ability to record motions. I really believe that feature would bring it up to the next level.

### 4/5 — Amazing app, but could be even more amazing.

*2018-02-24, version 3.1.3*

I just started using iPad synths along with other hardware and plugin based synths, and this one is a stand out. Amazing. My only issue with it is that it could even be a bit more useful if it would integrate with the rest of my studio via MIDI. By that I mean, accepting a MIDI clock sync from my DAW and other note and CC information so that I could send it a sequence while I’m using the interface to manipulate the other parameters in real time. Also, if it spit out MIDI note and CC info so that performances could be recorded, edited and then played back... again, a pro feature but would really take this thing to the next level and make it a must have in any electronic music production studio.

## Most critical reviews (10 lowest-rated)

### 1/5 — Still crashing

*2026-02-13*

UHG

### 1/5 — 刚买下，没有体验到触控力度响应效果

*2021-02-03*

求教程啊！I need the User Guide Version 3.3.1 for TC-11.
上网下载用户指南总在下载90%时中断。没有指南，郁闷。

### 1/5 — Unable to download update

*2015-11-12, version 2.0.5*

I love TC-11 but cannot update to the latest version, which sounded awesome from the release notes.

### 1/5 — Where has the Harmony gone

*2015-07-23*

TC11 is a collection of weird uninspiring 
Noises with no sense of Harmony vibe.
Not one at all patch with Harmony scales is included here. Who should use that ever for creating modern music? Unbelievable i paid for that bleep bleep noises here.

### 1/5 — Awesome yet crashes

*2015-05-04, version 2.0.2*

Every time i try to add a patch to a folder it crashes. Otherwise, great potential. (On latest ipad Air)

### 1/5 — Oh the irony...

*2014-08-17, version 1.8.3*

A huge leap forward in interface and sound...  And a developer not interested in letting musicians connect with his toy.

Responsive to inquiries, but sample patch provided ironically speaks, "Why, why, why?"  I really want to love this synth.  As it stands, my creative impulse is thwarted, and my desire to explore is extinguished.

I'd give it more stars for sound design possibilities, but as it stands, I feel mocked by this app.  Fascinating control leading to so little feeling of control.

Love of machine over musician.  Such a shame.

### 1/5 — Nein

*2012-12-29*

Ich bin einfach nur enttäuscht. Für so viel Geld bekommt man 112 schreckliche Gerräusche und ein sehr Komplezierten Umgang. Es macht kein Spaß und lohnt sich nicht.

### 1/5 — after updating settings not working on iPad1

*2012-11-28*

after updating settings not working on iPad1

### 1/5 — pest

*2012-10-12, version 1.6.2*

I'm sure this is amazing but the "audiocopy" button crashes the app out on ipad3 - did look on the website to contact but didn't find, hence this..

### 1/5 — Kaputtgepatcht

*2012-09-27*

Ohne Worte, da geht ja nix mehr... gerade ziehen bitte

## Most praised reviews (10 highest-rated)

### 5/5 — the only ipad synth

*2026-02-08*

I have spent years trying synthesizer apps on iPad. The vast majority of them are just terrible, because they don’t actually use the iPads’ strengths. Instead, they are content to reproduce on the screen, the dials and sliders and keys of physical synthesizer, creating a frustrating user experience

TC 11 is in a different dimension. It rethinks how to lay out the controls of the synthesizer from the perspective of a touchscreen it’s a beautiful and thoroughly deep experience.

### 5/5 — This App Is Unbelievably Brilliant ⭐️

*2026-01-09*

For years I have wondered how did the band Ozric Tentacles create those lush electronic sounds….. I need wonder no more, those sounds are here in abundance, although not the original source, but 99% near enough.
This has to be my best purchase on the App Store. ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️

### 5/5 — Magnificent Sound App!

*2026-01-07*

This app is easily in the top 10 iOS audio apps ever. Probably the single most innovative and creative use of a touch screen for audio use since the advent of touch screens. Not only that, but the sound quality is phenomenal!

### 5/5 — Jewel of an app

*2026-01-05*

I can’t believe I’ve not really looked at this before. It properly utilises the iPad touchscreen format. I would put it alongside Samplr and Gestrument (for example) in this regard. It’s possible to make a remarkable range of sounds that will be very usable as tonal instruments, soundscapes, percussion and fx. Hats off to the developer!

### 5/5 — Please add new presets

*2025-08-08*

Please update : 
New sounds packs
Auv3
More controls on panel synth ..
Больше хочется контроля на панели синтезатора 
Новых звуков новых наборов и новых расширений 
plus Sequencer 
Thanks by your works!!

### 5/5 — Very truly

*2024-10-17*

Very truly just what I need in my adventurous life love the sound of this synth

### 5/5 — Der Wahnsinn für elektronische und „neue Musik „

*2024-01-17*

Die Klangästhetik von diesem Synthesizer ist unglaublich. Jeder kann den Spielen. Man kann in Improvisation einbauen, da man die Tonart leicht festlegen kann. Ein echter Gewinn Gerät und die Welt der Musik.

### 5/5 — Coolest app on the app store

*2023-08-02*

This app isn't just a great synth, it's a great example of what an iOS app can be!

### 5/5 — Neue Klangwelten

*2023-05-17*

Unglaublich gut gemacht, man kann intuitiv neue Klangwelten entdecken.

### 5/5 — Esteem Boosting!

*2022-05-12*

I feel like an artistic savant while playing it!

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*