This is the official and the only Mellotron app with sounds from the original library. It contains 18 sounds from both the Mellotron and Chamberlin library, emulations of the characteristics of different Mellotron and Chamberlin models plus a reverb.

This instrument supports Core Midi, Audiobus output (Audiobus 2 & 3) and midi input (Audiobus 3 only).

The Mellotron is a keyboard instrument that uses magnetic tape to play back recordings where each key has one tape. When you press a key, the tape starts and the corresponding pre-recorded note or sound is played back. When you release the key the tape is quickly rewound back to the start point.

Invented in 1950 by the American, Harry Chamberlin, it became popular among recording musicians when it was manufactured in the UK as the "Mellotron" (a hyphenation of "melody-electronics").

Before the introduction of digital samplers, this was the only way for keyboardists to play real instrument sounds like strings, flutes, rhythm ensembles and sound effects from a keyboard instrument.

Few people know about Mellotrons and Chamberlins, but almost everybody has heard the sounds they produce. Among the most well-known tracks are BeatIes "Strawberry Fields Forewer" (flute), Moody Blues "Nights in White Satin" (3 violins), Oasis "Wonderwall" (cello), Radiohead "Exit Music for a Film" (choir), Lana del Rey "Ride" (Chamberlin flute).

We at have collected, conserved and improved Mellotrons since 1989, and have been making tape Mellotrons since 1999 (the MkVI and MkVII). Please check out our website for a more complete history, real hardware instruments, our new digital M4000D Mellotron and M4000D Mini, tapes from the original masters, parts, service and lots of more info.

What’s New

Version 2.0

Fix for crashing app
New improved graphics
Amount of characteristics
Reverb unit
Core midi support
Double tap knobs to reset

Ratings and Reviews

4.2 out of 5
5 Ratings

5 Ratings

MoogLove ,

Great sound but we'll never get a midi update

I have owned several original Mellotrons in my life including a very rare dual keyboard Mellotron Mark V.
After talking with people involved in the company currently the one thing we all want which is to be able to play this app from a real keyboard via MIDI will never happen because they want us to buy the two digital versions of the Mellotron. Which for me isn't an option now or probably anytime in the near future due to the cost of several thousand dollars. Sure I'd love an M4000 D but since I paid eight bucks for an app that basically is a toy since I can't control it from Midi controller like all my other vintage apps, iMini, iSEM, iProphet, Waldorf Nave I'm very disappointed. i'm still using one of my emu system's digital samplers and the CD ROM of Melachaw and sounds triggering it from a keyboard it would be so convenient to be able to have my Akai Synthstation controller/iPad dock control this app.

Dvelop ,

Great update!! Excellent app

Everything seems great!! Thanks for the hard work!!!!

Feature request: background audio. Last state saving when closing. Or even presets so when you close you can instantly have your last sound back.

( background audio gives you the ability to turn off the iOS screen and allow the app to still play )

Developer Response ,

Good ideas! But right now the hardware Mellotrons need some love. A bit unclear what you mean with ”background audio”? You can play along to another app that is platina music, and with Audiobus you can play while the Mellotron app is in the background. /Mellotron Team



thank you for the wonderful update! best sounding mellotron library out there! love the new modeling feature as well, can really make it sound like a Mark II! maybe recommend something where we can buy extra voice packs for the app?

Developer Response ,

Hi. We are sorry you had to experience this extremely annoying bug but are pleased to announce that a new version that solves this is available on AppStore! We also added Core Midi. This app contains sounds taken from tapes straight from the original sound library and with emulation of the characteristics of real instruments with laser precision. Enjoy! /Mellotron Team


Markus Resch
190.6 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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