OB User Reviews

Customer Experience

Positive experience57.0% of reviews
Neutral12.8% of reviews
Negative experience30.2% of reviews

~ Based on 86 written reviews from the US App Store.

What users say

Is OB Safe?

OB-Xd AUv3 Synth appears mostly safe based on user ratings. AppsHunter Safety Score for OB is 84/100.

This assessment is based on 65 user ratings, with an App Store average of 4.4/5.

Safety Analysis

84.6% of ratings point to a safe experience
4.6% of ratings suggest some concerns
10.8% of ratings point to a risky experience

~ Based on 65 App Store ratings for OB.

Is OB Legit?

OB-Xd AUv3 Synth appears to be a legitimate app. AppsHunter Legitimacy Score for OB is 90/100.

Based on 90 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

No sound

Seriously, and you want $20. Ha ha ha Ha. No way!

Do not buy!

There is a newer version of this synth available. As of 22 MAR 2026 the product description of this synth does not state that fact. I was denied a refund twice by Apple in spite of this. Additionally, the developer would not help with a promo code to get the later version, which THEY ARE able to do at no cost to themselves. Due to this I will not buy nor recommend any of this developers products on any platform in the future.
Show more

Config mídi

Não tem opção para configuração mídi, não trabalha com imidipatchay.

Thanks by update !

Хороший синтезатор но не пойму : некоторые звуки играют сразу у других задержка после нажатия где-то секунда \\\
iPad mini 2 iOS 12
Хочется ещё подробное меню и Настройки буфера и качество звука …432…Hz +-+
Thanks by your work !!!

Bellissimo, ma ultimamente….

Ultimamente, da quando ho IOS 18.6 , se non viene usato per 3/4 giorni il software si disinstalla e devo rifare l’operazione. Fortunatamente usandolo su Camelot il programma mi riprende al volo suoni e patch come se nulla fosse successo.
Magari problemi di compatibilità con i nuovi IOS?

Верните деньги

Очень сильно не оптимизирован ни под что

Amazing Synth … Missing A Few Things!!

I absolutely LOVE this virtual synth!! It sounds incredible, and programming on it is a joy … If it had a few updates like adding last/high priority for mono patches, or increased polyphony to 8 voices, I’d rate it 5 stars because I use it that much 🙏🏾

Shows up as italizer in Audiobus

Crashes in Audiobus. Can’t use in midi section

Inspiring!

A great synth! I can always rely on this me to get my creative juices flowing!

Unico

Suona veramente bene!

No upgrade bundle?

I bought this just a month before version 3 came out, there is no upgrade path provided, this often takes the form of an upgrade bundle with both versions included where the price is discounted if you already own one of the versions. Would appreciate that very much and leaving this as a warning this is the old version.

I actually bought their complete bundle with four titles originally. This was the only really interesting thing in it imo unless you’re into chiptune retro. I think this version does sound quite Oberheimish and the competitor is Korg Gadget Phoenix which also does the job. Would like to hear the new version please.
Show more

I can’t use it

In Cubasis on my iPad 12.9 pro, when added to a track, there is no way of browsing the preset banks without turning off the keyboard, maximising the synth and then opening the banks/patches at the bottom of the screen.

I have to repeat this for EVERY SINGLE TIME I want to change patch. It’s crazy!! Why isn’t the bank / patch browser listed per spec in the Cubasis list/browse menu on the left, and why is the patch/bank control centre fixed at the bottom of the screen behind the keyboard and doesn’t allow you to scroll to it - requiring you to maximise the synth instance EVERY time??

When I do manage to get to a patch, I guess it sounds ok - but I’m so frustrated that I’ve only loaded perhaps 2 patches.

PLEASE fix asap
Show more

Great Sound - Unplayable

Dev did a good job with a faithful rendering of the original sounds but I’ve never seen a less playable iPhone keyboard. I have thin fingers and am pretty dexterous with these things but this one is just impossible.

This App have A LOT, is a beautiful surprise

Nothing is perfect but this Oberheim emulation is really an instrument that you can play in studio or live, with keyboard or MidiGuitar 2.5; you can easily reproduce many sound including Path Metheny GR300; Thanks a lot; I hope that you will continue to develop this synth

George Reales trickiest dev on the store

The synth isn’t so bad but the dev is really a tricky guy. I don’t support people who treat their loyal customers like stupid farming cows.

The sound is amazing

Sounds fantastic. It’s missing midi learn. The preset browser still needs work. It’s missing categories. Once those are added, 5 stars.

Mostly perfect

Ever since I was a kid, I was obsessed with the sound of the Oberheim Ob X series , so I had to get this as soon as I noticed it in the App Store. It is exactly as awesome as I hoped for…mostly. I know the GUI has been optimized for the iPhone now and is much improved from earlier versions. There is one issue though… when using it as an AU in GarageBand, I can not access the last two banks as if I try to scroll down , the bottom two banks are cut off, and one of those banks is the empty one for user presets. Now the work around for the other is to enter standalone mode, choose the preset and hit “copy” load up a “default” preset in one of the few accessible banks that have one, and then hit paste in the menu. The tricky part is, if you forget to load up a default preset first, you’ll accidentally overwrite the loaded preset. That is the legit only issue I have but it’s kind of a big one
Show more

One of the best sounding iOS synths

This app sounds amazing. To my ears this sounds as good as the Moog synth apps. I’ve owned an ob-6 and own many Oberheim desktop plugins. This app nails the oberheim sound.

Sounds fantastic but missing midi on iPad

Great sounding synth, it would be great to have a midi implementation on iPadOS as I’d like to map it to my prophet 5.

Was Pitiful

Thanks for this update. Now the app is usable on an iPhone, even though I can't read a single word on the unit - at least I can access presets and the menu.

Original Feedback:
Simply not usable on an iPhone. You need a magnifying glass to even see the controls, and you NEED those as the presets just auto-scroll from the first 20 to the last 20, missing the bulk of presets in the middle. How anyone can charge money for such a waste of time and not be banned from the app store is a mystery. This is a super pathetic excuse for an app.
Show more

Response from developer

Thanks for your feedback. Version 1.15 includes touch friendly popup menus which are iPhone friendly too.