7XDXFM 4OP FM Loop Maker
Not in any tracked top chart right now.
Updated 24 Oct 2026 · rankings refresh through the day
DeveloperRob Wilmot
CategoryMusic
Price1.99 GBP
Released
Rating★ 5.0 (2)
Version2.1
Age rating4+
First seen by us
23 Oct 2026
Rating
5.0 ★
2 ratings
Measured
7XDXFM 4OP FM Loop Maker on the App Store
App details
App ID
1589435250
Publisher
Rob Wilmot
On the store since
Jun 2022
4 years on the store
Minimum OS
iOS 15.6+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
15 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
2 ratings
Measured
Ratings
2
Measured
About 7XDXFM 4OP FM Loop Maker
Welcome to 7XFM - a 4 operator FM synthesizer and 7 track sequencer with Ableton link, recording, and routing for your audio to connect to AUM or Audiobus.
With most of the important synthesizer settings found in most FM synthesizers and added modulation.
Modulate the operators over time with the LFO, plus dynamics for amplitude and pitch of modulators wherever you add an ACCENT
Pick from a range of preset frequencies for carrier and modulators (influenced by Orla DSE/Bohm FM Expander synthesisers)
Create those classic FM sounds from punchy Lately Bass to smooth 80s fm pads or crazy chaotic FM sound effects.
Keep in Sync with your apps using Ableton Link or MIDI
Send MIDI clock or MIDI note as separate channels.
This app was influenced by the Korg Volca/Electribe FM synth sequencers as well as TX81z and Orla DSE9 FM synthesizer
SEQUENCER
The sequencer has 7 channels containing a sequence dedicated to a tone sound.
You can create sequences using step edit or bring up the PIANO ROLL for quick step placement.
You can just randomly generate steps - either random choice pitches or SELECT NOTES. or shuffle the sequence
PIANO ROLL!
its easy to create melodies and bass lines fast!
Double click step to cycle though octaves or erase across step with finger motion.
Mask keys so you can define keys and swipe across bar with finger motion to lay down steps easily.
EFFECTS!
Each track has echo, reverb and a low pass filter similar to add some spacial atmosphere or emulate an analogue synthesizer.
COOL CREATIVE FEATURES!
2nd and 3rd voice generators with detune and transpose by semitomes for fat chorus effects or chorded notes
Auto level ducking switchable input from bass metronome or any track
Playback timing of notes on sequences - steps triggered either at 4th or 8th timings - a sequence can play slower and last longer equivalent to 512 steps
Added a “mutate tone” option that slowly modifies the sound randomly away from original.
Added “randomise tone” that completely creates a random tone from fresh.
GLOBAL TRANSPOSE!
All channels can be transposed simultaneously on the fly to create great layered melodies, and you can choose which ones are ignored (TR LOCK) for things like sound effects.
SONG MODE is like a playlist of programs, where you can chain programs from either the current loaded program or imported saved program file. A scene can have any track muted, global transposed, reset counter at start (D.C.) "Da Capo", override step length and control the BEAT ON metronome mode.
You can then arm sampling and record the chained programs and export the audio. Save your Songs and they won't be affected by changes in the original programs.
EXPORT!
You can easily record a perfect loop of whatever is playing and export via AudioCopy or Audioshare as well as email and IOS Folder
Export your tones, sequences or whole programs to another device, friend or saved elsewhere
SYNC
This is compatible with Ableton Link as well as MIDI so you have options for conne
With most of the important synthesizer settings found in most FM synthesizers and added modulation.
Modulate the operators over time with the LFO, plus dynamics for amplitude and pitch of modulators wherever you add an ACCENT
Pick from a range of preset frequencies for carrier and modulators (influenced by Orla DSE/Bohm FM Expander synthesisers)
Create those classic FM sounds from punchy Lately Bass to smooth 80s fm pads or crazy chaotic FM sound effects.
Keep in Sync with your apps using Ableton Link or MIDI
Send MIDI clock or MIDI note as separate channels.
This app was influenced by the Korg Volca/Electribe FM synth sequencers as well as TX81z and Orla DSE9 FM synthesizer
SEQUENCER
The sequencer has 7 channels containing a sequence dedicated to a tone sound.
You can create sequences using step edit or bring up the PIANO ROLL for quick step placement.
You can just randomly generate steps - either random choice pitches or SELECT NOTES. or shuffle the sequence
PIANO ROLL!
its easy to create melodies and bass lines fast!
Double click step to cycle though octaves or erase across step with finger motion.
Mask keys so you can define keys and swipe across bar with finger motion to lay down steps easily.
EFFECTS!
Each track has echo, reverb and a low pass filter similar to add some spacial atmosphere or emulate an analogue synthesizer.
COOL CREATIVE FEATURES!
2nd and 3rd voice generators with detune and transpose by semitomes for fat chorus effects or chorded notes
Auto level ducking switchable input from bass metronome or any track
Playback timing of notes on sequences - steps triggered either at 4th or 8th timings - a sequence can play slower and last longer equivalent to 512 steps
Added a “mutate tone” option that slowly modifies the sound randomly away from original.
Added “randomise tone” that completely creates a random tone from fresh.
GLOBAL TRANSPOSE!
All channels can be transposed simultaneously on the fly to create great layered melodies, and you can choose which ones are ignored (TR LOCK) for things like sound effects.
SONG MODE is like a playlist of programs, where you can chain programs from either the current loaded program or imported saved program file. A scene can have any track muted, global transposed, reset counter at start (D.C.) "Da Capo", override step length and control the BEAT ON metronome mode.
You can then arm sampling and record the chained programs and export the audio. Save your Songs and they won't be affected by changes in the original programs.
EXPORT!
You can easily record a perfect loop of whatever is playing and export via AudioCopy or Audioshare as well as email and IOS Folder
Export your tones, sequences or whole programs to another device, friend or saved elsewhere
SYNC
This is compatible with Ableton Link as well as MIDI so you have options for conne
Latest updates
2.1
Updated UI
Removed Randomise as this was not very helpful.
Improved mutate so it replaces the old of randomisation. Start off with a tone , copy it as backup, then press mutate a few times. Then paste and try again. Better results this way.