Colossus Piano sets a new standard in terms of realism, detail and overall quality of piano sounds on your iPad, iPhone and iPod touch. There are 8 acoustic piano models available as 8 individual in-app purchases, plus 5 E-Piano legends bundled as 1 sound set with this app, together those 13 piano models make up 30 Gigabyte of sound material. All keys of all piano models were recorded in full length with a recording quality of 24 bit and 96 kHz stereo.

Note: this app requires in-app purchases to provide its functionalities!
Minimum Requirement: at least iPad 3 / iPad Air 1 / iPad mini 2 / iPhone 5 / iPod touch 6th gen.
Recommended: iPad Air 2 / iPad mini 4 / iPad Pro / iPhone SE / iPhone 6s or higher.

The dark brown „Colossus Concert Grand” model:³
• 24 velocity layers per key.
• Sympathetic resonance (sustain sound).
• Release hammer sound.
• Optional pad sound.
• 14 GB in size (SSD space).

The white „Baby Grand” model:
• 12 velocity layers per key.
• Sympathetic resonance (sustain sound).
• Release hammer sound.
• Optional pad sound.
• 6 GB in size (SSD space).

The „Upright Piano” model:
• 8 velocity layers per key.
• Sympathetic resonance (sustain sound).
• Release hammer sound.
• Optional pad sound.
• 3.4 GB in size (SSD space).

The „E-Piano” sound set:
• 5 legendary E-Piano models (plus different model generations or configurations).
• 17 E-Piano sounds in total.
• Optional pad sound.
• Optional tremolo effect.
• 1.6 GB in size (SSD space).

For information about the other piano models, please visit our product website!

This app supports Audio Unit v3, Inter-App Audio, Audiobus and Bluetooth LE MIDI !

Software features:
• Modulation wheel support for controlling the most relevant sound parameter of the currently selected sound.
• Warm pad sound of a well known analogue synthesizer (not available for all models) can be turned on/off as support for the piano sound; volume can be controlled by mod. wheel and expr. controller.
• Sustain pedal support for holding notes.
• Sostenuto pedal support for holding individual notes.
• Soft pedal support for a more gentle sound.
• Expression pedal support for controlling optional pad layer's volume.
• Hammer sound when releasing keys, uses round robin, can be turned on/off and volume controlled (some acoustic pianos only).
• Polyphony of up to several hundred stereo voices.²
• Low latency disk streaming.
• Configurable audio latency down to 5 ms.
• Integrated effects (18 presets).
• MIDI velocity response curve editor.
• App can keep running in the background.
• Hermode Tuning: Makes the sound more brilliant by controlling the pitch of the notes in multivoiced music to better frequency ratios than with fixed tuning. Imitates the tuning behavior of well educated musicians (i.e. orchestras and choirs).
• Provides Audio Unit plugin version of this app, which allows it to be used as virtual instrument directly within 3rd party multi-track DAW apps.
• Supports Apple's "Inter-App Audio" system.
• Audiobus support.
• Virtual on-screen piano keyboard with velocity support, scalable & scrollable.

MIDI Player / Recorder:
• Record, save and load your songs in standard MIDI file format.
• Unlimited amount of tracks.
• Unlimited recording and playback length.
• Open MIDI (.mid) files directly from other apps (i.e. from Safari, Mail).
• Download or upload MIDI files with iTunes.
• Metronome.
• Use the "Tempo Zoom" dial knob to i.e. slow down playback at any time, learn your favorite songs more easily.

¹ For more information about supported adapters and MIDI keyboards, please visit our product website.

² Some sounds might use several voices per note. Polyphony depends on the exact device model being used. You find a polyphony table on our product website.

³ Important: the dark brown „Colossus Grand” piano model requires a large amount of main memory, so we only recommend this piano model for device models mentioned as „recommended” above.

What's New

Version 1.3.4

• Fixes an issue of the Audio Unit Plug-in version which caused misbehaviors like random audio artifacts, noise and AU crashes under certain conditions.

Customer Reviews

3.9 out of 5

10 Ratings

10 Ratings

High Quality piano sounds and great customer support

Mets guys

I’ve had the Upright Piano since shortly after they came out with this app. It’s a fantastic piano and a good all around sound. Works with rock based music, jazz, and sounds fine with classical as well. There was an issue with a sample on one of the layers of velocity on a single note. I emailed support and they quickly responded to say they will look into it. They emailed me 2 days later again to say that it was fixed and all I had to do was uninstall the piano and re-download it as they had the newly fixed version already uploaded. I wish I had emailed support earlier. I give them 5 stars as well as 5 for the sounds of the piano. I also have the less expensive Vintage Upright. It’s not as good as the Upright model, but they also charge you less and it’s a different sound for some extra variety. I’ll likely end up buying some other pianos at some point, but definitely don’t need them all.

By far the best, 10 stars


I have igrand, really quite good; korg and ivory, both a bit electronic and a disappointment; Imperial grand, pretty nice; CMP, very good; and Ravenscroft which is very good. I have never played a Real Grand Piano, but the Colossus Dark Brown is, to my ears, almost perfect.
I downloaded the Dark Brown, which took hours, but has been worth every minute! It is amazingly beautiful, so full and, well, GRAND! I can’t stop playing it.
I also have bought the 3.4 gb upright and am equally impressed. BY FAR THE BEST.
Only drawbacks are only reverb to adjust and crashes are common when changing the from one sound to another, but just re-open the app and all is well. I have been assured that the crashes will be fixed in next update.

Amazing sound, best piano app.


Don’t usually write reviews but here I go. I play piano and definitely prefer digital piano/keyboard or software with laptop when playing on stage. That said, a small setup is sometimes needed and definitely a go to piano which is why i wanted a piano app. I purchased the red Japanese Grand Piano and used it on stage. I was amazed by the sound, and quality; it delivered a rich and full quality sound of a grand piano. Comparing it with Korg module, ivory and other apps, this is hands down the best Piano app.
Con: initial download is over an hourlong and other Colossus pianos cost more and take up a lot of GB space, but definitely worth it.


Christian Schoenebeck d/b/a Crudebyte
300.8 MB
Requires iOS 5.1.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016-2017 Crudebyte
In-App Purchases
  1. Colossus Concert Grand $49.99
  2. Colossus E-Piano Set $19.99
  3. Japanese Grand $12.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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