Comparison

7XDXFM 4OP FM Loop Maker vs FAC Clipper

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

7XDXFM 4OP FM Loop Maker

Create complex FM synthesizer sounds and sequences with this 7-track music production tool. Features include LFO modulation, piano roll editing, and built-in effects like echo and reverb. Sync with other apps via Ableton Link or MIDI, and export your creations.

Highlights
  • 4 operator FM synthesizer
  • 7-track sequencer
  • LFO modulation
  • Piano roll editing
  • Echo and reverb effects
  • Ableton Link and MIDI sync
  • Audio export
Features
Read full description

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 connecting to external hardware or other apps while keeping in time AUDIO ROUTING Output the main audio to other apps such as Audiobus or AUM to allow those apps to record or process your creations EXTERNAL CONTROL Control Mute of tracks with midi keys, volume of track-channel with MIDI CC 176 for channel 1, , 177 - channel 2 etc .. MIDI note input of one track's sound available while sequencer is playing all tracks - selectable tracks controlled by all midi channels (omni) THIS DOESNT ACCEPT MULTIPLE MIDI PER SEQUENCE.

About

FAC Clipper

This audio plugin enhances mix loudness and adds harmonic warmth with flexible full-band and two-band clipping. It offers precise visual metering, adjustable knee curves, and a dry/wet mix for balanced sound. Designed for quick, intuitive peak control on iOS, macOS, and Vision Pro.

Highlights
  • Enhances mix loudness
  • Adds harmonic warmth
  • Full-band and two-band clipping
  • Precise visual metering
  • Adjustable knee curve
  • Dry/wet mix control
  • Low latency
Features
Read full description

• Enhances Mix Loudness and Adds Harmonic Warmth • Full-Band and Two-Band Clipper in a Single Plugin • Quick, lightweight, and designed for effortless flexibility! • Precise Visual Metering for Fast Peak Control • Knee Curve Adjustment, from Super Soft to Hard • Shape Control of the Harmonic Profile • Dry/Wet Mix for a Natural, Balanced Sound • Low Latency with Optional Oversampling • Advanced Responsive Design, portrait and landscape views • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro FAC Clipper is designed to enhance your mix's loudness and add signature harmonic warmth. While it is based on a similar DSP architecture to the Clip processor in FAC Punchlab, it takes a different approach to clipping control, featuring an advanced user interface with precise metering to track and manage the peaks of the audio signal. The plugin also includes both a full-band clipper that processes the entire spectrum and a multi-band clipper, allowing you to independently clip low, high, or both frequency bands. This provides the flexibility to maintain transparent processing or experiment with creative adjustments, depending on your needs. Built with simplicity and flexibility in mind, FAC Clipper is quick, lightweight, and highly intuitive. The clean, streamlined interface lets you focus on what matters most; controlling the peak levels to maximize loudness while preserving clarity and avoiding the pumping effects often associated with heavily limited signals. Thanks to its precise waveform and level meters, using FAC Clipper is a breeze. Simply add the plugin to your track and adjust the input gain until the waveform meter reaches 0 dB. This gives you a clear view of the signal's dynamic range, making it easier to identify peaks. Next, set the ceiling just below the peaks you wish to control. You can also adjust the Knee parameter for smoother clipping and fine-tune the saturation to achieve the perfect warmth and character. Use the Mix parameter to blend the clipped signal with the original audio, allowing you to control the amount of clipping applied. This helps preserve the natural character of the sound while enhancing loudness and harmonic warmth. This is an AUv3 Effect and requires a compatible host to work The documentation is available at fredantoncorvest.com/FAC_Clipper.html

Screenshots

7XDXFM 4OP FM Loop Maker4 screens
FAC Clipper3 screens

Verdict

The call

The clearest difference is review sentiment: FAC Clipper at 100% against 7XDXFM 4OP FM Loop Maker's 50%. FAC Clipper also leads on rating (5.0 vs 4.0). 7XDXFM 4OP FM Loop Maker's advantage is price ($1.99 vs $9.99) and in-app purchases (none vs 3). On ratings volume, ads, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

7XDXFM 4OP FM Loop Maker costs $1.99 and FAC Clipper $9.99 up front. FAC Clipper sells 3 one-off in-app purchases. 7XDXFM 4OP FM Loop Maker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAC Clipper holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 6 and 9 respectively. Written reviews point the same way: 50% of 7XDXFM 4OP FM Loop Maker's written reviews are positive against 100% of FAC Clipper's.

UpkeepUpdate frequency

7XDXFM 4OP FM Loop Maker ships an update every 5 days, FAC Clipper every 2 months. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
7XDXFM 4OP FM Loop Maker versus FAC Clipper: the parameters behind the verdict, then further details
Parameter7XDXFM 4OP FM Loop MakerFAC Clipper
Price$1.99 — better$9.99
Rating4.0 (6 ratings)5.0 (9 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings69 — better
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better16.4
Further details — not scored
Size14 MB3 MB
Age rating4+4+
DeveloperRob WilmotFrederic Corvest

Customer experience

7XDXFM 4OP FM Loop Maker

All ratings6 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

FAC Clipper

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

7XDXFM 4OP FM Loop Maker

No in-app purchases

3 purchases

FAC Clipper

One-time3
  • Small Tip$1.99
  • Medium Tip$4.99
  • Large Tip$14.99

Questions

Is 7XDXFM 4OP FM Loop Maker free?
7XDXFM 4OP FM Loop Maker costs $1.99, with no in-app purchases.
Is FAC Clipper free?
FAC Clipper costs $9.99, and also offers in-app purchases.
Which has better reviews, 7XDXFM 4OP FM Loop Maker or FAC Clipper?
FAC Clipper is rated higher. 7XDXFM 4OP FM Loop Maker averages 4.0 out of 5 from 6 ratings, while FAC Clipper averages 5.0 from 9 ratings.
Do 7XDXFM 4OP FM Loop Maker or FAC Clipper have ads?
Neither 7XDXFM 4OP FM Loop Maker nor FAC Clipper shows ads.
Which is updated more often, 7XDXFM 4OP FM Loop Maker or FAC Clipper?
7XDXFM 4OP FM Loop Maker ships an update every 5 days, and FAC Clipper every 2 months. Most recently, 7XDXFM 4OP FM Loop Maker was updated on October 24, 2026 and FAC Clipper on October 24, 2026.

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