Rockrelay Synth FM
ROCKRELAY APPS
4.0 ★
4K ratings
1,000,000+
downloads
Free
+ in-app
In this synthesizer app, you can create and modify FM sounds using full MIDI support and an in-app keyboard. Includes MIDI keyboard and controller support, FX Reverb and Delay, and full 6 operator FM synthesis.
AppRecs review analysis
AppRecs rating 4.1. Trustworthiness 80 out of 100. Review manipulation risk 24 out of 100. Based on a review sample analyzed.
★★★★☆
4.1
AppRecs Rating
Ratings breakdown
5 star
65%
4 star
9%
3 star
6%
2 star
4%
1 star
17%
What to know
✓
Low review manipulation risk
24% review manipulation risk
✓
Credible reviews
80% trustworthiness score from analyzed reviews
✓
Good user ratings
73% positive sampled reviews
About 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/
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/
Rockrelay Synth FM Screenshots
Tap to Rate:
Reviews for Rockrelay Synth FM
Mamata Reang
12/10/2025
It would constantly play weird crusty and loud noises, even if I don't touch the keys.1 Star.Don't use. Even if there were 0 noises, it still feels kinda limited
muxa marco
8/25/2025
Good
