Rockrelay Synth FM

Everyone

Digital Purchases

Dealing with daily issues? Rockrelay Synth FM arrives as an instant solution. A professional development by ROCKRELAY APPS. Full info available at Music & Audio.

Original Release And The Tool Rockrelay Synth FM

Perfect FM Synthesizer - DX7 full emulation. Full MIDI support.

NOTE: If you got stuck keys, when pressing a chord, please switch off the 3 FINGER GESTURE from your phone settings!

* Compatible with the sysex files from original Yamaha DX7
* Full 6 operator Frequency Modulation Synthesis.
* Midi keyboard and controllers supported via USB OTG.
* Bluetooth BTLE MIDI support.
* Excellent 8 octaves in-app keyboard.
* FX Reverb and Delay.
* System exclusive.
* Zero Latency!

Please, test everything before purchase! If you have any issues with your midi controller, or the android device, please do not buy the app!

FACEBOOK:
https://www.facebook.com/RockrelayApps/

YOUTUBE:
https://www.youtube.com/channel/UChydmuHRZg8iHnpWskC6Xwg

WWW:
http://www.rockrelay.com/

DX7 new voices online creator:
https://www.thisdx7cartdoesnotexist.com/

Perfect FM Synthesizer. Yamaha DX7 synthesizer emulation. MIDI support OTG, BTLE

Updated on

Oct 29, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.

No data shared with third parties
about how developers declare sharing
No data collected
about how developers declare collection

Ratings and reviews

3.52K reviews

Kyle Harrington

April 4, 2026

So I love this app because it can replicate all my favorite synth sounds but an issue I've noticed lately is that sometimes the notes pressed go a little 'off sounding'. You can see it yourself by keep pressing a note specifically I've noticed it in rom 2 'Synlead5' and a few others. it can be annoying when trying to make something and the note starts sound off. hard to explain without hearing it yourself. Devs please try fix it since it used to never be like this. specifically note E it happens

1 person found this review helpful

Laurence Ellis

June 19, 2026

sorry guys, great sounds, no problem there, but 1 second plus latency and ADVERTS, three at a time with every three or so changes of primary functions...is there a better paid 'ad free' subscription version which tracks quicker, if so, I'd take it...this app is nothing to me in it's free version... thanks 👍

1 person found this review helpful

L. Clark

July 16, 2026

Suddenly after years of ownership there is no sound. Other apps work fine. I paid for this but now do they want more money? Not happy. 7-15. Now it makes a constant horrible noise that requires me to restart the phone to shut off.