Comparison

FAC Polyflo vs SimpLoop

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

Head to head
About

FAC Polyflo

This AUv3 plugin allows you to modulate and sequence MIDI instruments and modular hardware. It outputs both MIDI and analog CV simultaneously, supporting hybrid digital and analog setups. Convert various signals into control voltages for deep and flexible modulation.

Highlights
  • AUv3 plugin for modulation and sequencing
  • Outputs MIDI and analog CV simultaneously
  • Converts signals to control voltages
  • Two LFO generators with syncing
  • Integrated envelope follower
  • Six FLO(W) processors for signal shaping
  • Universal Purchase for iOS, macOS, Vision Pro
Features
Read full description

• AUv3 plugin to modulate and sequence MIDI instruments and modular hardware • Outputs MIDI and analog CV simultaneously for integrated hybrid setups • Fully functional in software-only environments with full MIDI support • Converts LFOs, MIDI notes, pitch, and control changes into control voltages • Includes two LFO generators with random spline, cross-modulation and syncing • Integrated envelope follower to track audio input or sidechain signal • Six FLO(W) processors for combining and shaping signals with math and logic • Each FLO supports 18 inputs with individual polarity, divider and multiplier • Multi-out support, built-in waveform viewer, Audio FX, and MIDI FX • Advanced Responsive Design, portrait and landscape views • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro FAC Polyflo is an AUv3 plugin for modulating and sequencing MIDI instruments and modular gear via control voltage. It outputs MIDI and analog CV simultaneously, making it well-suited for hybrid setups that combine digital and analog equipment. The plugin includes two LFO generators offering 10 waveforms, including classic shapes and random spline, with support for cross-modulation and syncing. It also features an envelope follower that tracks audio FX input or an external sidechain. The generated signals, together with the host clock and MIDI input, are fed into six independent FLO(W) processors. These processors combine, shape, and route inputs using math operations, conditional logic, and comparators. Each FLO includes individual polarity, division, and multiplication controls, providing deep and flexible modulation that balances chaotic creativity with precise timing. Each FLO processor output is connected to its own output bus, enabling easy integration with hardware via DC-coupled audio interfaces like the Expert Sleepers ES-9. For simpler setups, FLO outputs can be routed to the stereo output. FAC Polyflo can also convert MIDI notes, pitch, and control changes into control voltages, making it a powerful MIDI-to-CV solution. If you prefer to work exclusively with software, the plugin runs smoothly in software-only environments with full MIDI support, making it equally suited for purely digital workflows. FAC Polyflo works as both an Audio Unit FX and MIDI FX, featuring a clean, touch-optimized interface with precise control and waveform visualization. It’s available as an AUv3 for iOS (iPad/iPhone), macOS, and Vision Pro, and requires a compatible AUv3 host app to run. This is an AUv3 Effect and requires a compatible host to work The documentation is available at fredantoncorvest.com/FAC_Polyflo.html

About

SimpLoop

This audio effect plugin offers a straightforward approach to live looping, inspired by classic hardware pedals. It allows for simple one-button operation or advanced MIDI control for dynamic performances. Export your creations as WAV files.

Highlights
  • One-button looping
  • MIDI controller support
  • Reverse and half-speed toggles
  • Multiply function for loop extension
  • Auto-record option
  • Variable record fade time
  • Export loops as WAV
Read full description

SimpLoop - A (Fairly) Simple Looper Plugin (AUv3) SimpLoop is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic Pro or GarageBand. Overview - SimpLoop is a fairly simple looper What does "fairly simple" mean? Well, SimpLoop can be configured to be a very simple one button looper - tap to record a loop, tap again to play your loop, then tap to stop and clear the loop. Alternatively, you could assign 6 button functions and two expression controllers to a MIDI hardware controller for an extremely dynamic live looping setup. To help understand what SimpLoop is, it might be easier to cover what SimpLoop is not... SimpLoop does not have any form of tempo sync capability, or support for multiple sync'd loop tracks or A/B "verse" / "chorus" sections, etc. SimpLoop also does not have an undo function or support for importing audio files (*), and it does not remember the recorded loop between sessions. There are several more advanced looper apps that do those sort of things, but if you're new to looping, or you just need a compact and basic looper to include in your setup, SimpLoop was designed for you! (*) You can export your recorded loops as .WAV files. SimpLoop was also designed for live, "on the fly" looping, and could almost be considered "old-school" now, as it draws inspiration from hardware guitar looping pedals that started becoming popular in the early 2000's. As a live looping "veteran" myself, I wanted to create a looper that included some of my favourite hardware pedal features, plus a few things I wished that those pedals had back in the day! As well as basic looping functionality with a 60 second maximum loop time, SimpLoop includes reverse and half-speed toggles, and a multiply function that doubles the current loop length. For example, you could record a one-bar rhythmic loop, then tap Multiply twice to create a four-bar loop made up of 4 repeats of your original recording. Additional features include an auto-record option, variable record fade time for seamless loops (great for creating drones!) as well as different mode settings to determine how the loop, stop and clear commands work. For maximum hands-free looping enjoyment, I recommend using SimpLoop with some kind of MIDI controller that can send MIDI CCs via buttons / switches or knobs / expression pedal inputs. For more info and support please visit: www.waverley-instruments.com/robjackson

Screenshots

FAC Polyflo3 screens
SimpLoop4 screens

Verdict

The call

The clearest difference is rating: FAC Polyflo at 4.9 against SimpLoop's 4.0. FAC Polyflo also leads on review sentiment (100% vs 60%). SimpLoop's advantage is in-app purchases (none vs 3) and price ($2.99 vs $9.99). 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

FAC Polyflo costs $9.99 and SimpLoop $2.99 up front. FAC Polyflo sells 3 one-off in-app purchases. SimpLoop asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAC Polyflo holds the better App Store score, 4.9 against 4.0. Both are backed by a comparable volume of ratings — 11 and 4 respectively. Written reviews point the same way: 100% of FAC Polyflo's written reviews are positive against 60% of SimpLoop's.

Scorecard5 real differences · 5 level
FAC Polyflo versus SimpLoop: the parameters behind the verdict, then further details
ParameterFAC PolyfloSimpLoop
Price$9.99$2.99 — better
Rating4.9 (11 ratings) — better4.0 (4 ratings)
Positive reviews100.0% of reviews — better60.0% of reviews
Number of ratings11 — better4
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod, Mac — better
Requires iOS16.413.0 — better
Further details — not scored
Size5 MB13 MB
Age rating4+4+
DeveloperFrederic CorvestRob Jackson

Customer experience

FAC Polyflo

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SimpLoop

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

3 purchases

FAC Polyflo

One-time3
  • Small Tip$1.99
  • Medium Tip$4.99
  • Large Tip$14.99
None

SimpLoop

No in-app purchases

Questions

Is FAC Polyflo free?
FAC Polyflo costs $9.99, and also offers in-app purchases.
Is SimpLoop free?
SimpLoop costs $2.99, with no in-app purchases.
Which has better reviews, FAC Polyflo or SimpLoop?
FAC Polyflo is rated higher. FAC Polyflo averages 4.9 out of 5 from 11 ratings, while SimpLoop averages 4.0 from 4 ratings.
Do FAC Polyflo or SimpLoop have ads?
Neither FAC Polyflo nor SimpLoop shows ads.

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