Comparison

FAC Polyflo vs ANALOGyAMP

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
Currently charting
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

ANALOGyAMP

This audio effect plugin emulates the sound of 1960s US all-valve guitar combo amplifiers. It offers a simple interface with controls for volume, tone, tremolo, and reverb, plus optional speaker cabinet emulation and ADT effect. It's designed for vintage clean to edge-of-breakup and classic rock tones.

Highlights
  • 1960s US all-valve guitar amp emulation
  • Standalone and AUv3 compatible
  • Built-in tremolo and spring reverb
  • Optional speaker cabinet emulation
  • Stereo ADT effect
  • Channel switching for gain settings
Read full description

ANALOGyAMP Retro Guitar Amp Sim Plugin (AUv3) ANALOGyAMP is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic Pro or GarageBand. Overview ANALOGyAMP takes its inspiration from the small, low wattage US all-valve guitar combo amplifiers from the 1960's, still extremely popular today both onstage and in the studio. These amps had a single volume control, a simple bass and treble tonestack, and built-in tremolo and spring reverb. ANALOGyAMP follows the same design, adding an optional 10" or 12" guitar speaker cabinet emulation and a stereo ADT (automatic double tracking) effect. Typically these amps would start to break-up with the volume control set to around half-way, aka "the sweet spot". At this setting, the amp would be warm and clean(ish) but if you were to "dig in" the amp would start to compress and distort more. Past this point on the volume control, the amp doesn't actually get much louder - you just get more distortion and compression. The character of the distortion also tended to be very raucous and unrefined, coming exclusively from the 6V6 power tubes. ANALOGyAMP has been designed so that your starting point is "the sweet spot" and you add more gain from there. You can also "channel switch" between two gain settings for a lead and rhythm sound for example. As you crank the gain up on ANALOGyAMP, the tonal character of the distortion shifts into darker / more wooly territory - think 50's "Tweed" type breakup. Digital modelling of guitar amplifiers has become incredibly forensic over the years, but this comes at a cost - both to your CPU and your pocket! I wanted to take a step back and look at the tonal character of some of my favourite classic tube amps as a whole, rather than individually modelling all the parts, e.g. valve stages, transformers, speakers and microphones, etc. My ultimate aim was to create something a lot less complicated and CPU-friendly, that could take a guitar signal, and produce a pleasing amp-like tone, hopefully reminiscent of the actual amps that inspired me during the design of ANALOGyAMP. ANALOGyAMP isn't trying to be everything, so it won't do high gain Rock and Metal tones for example, in the same way you can't make a Princeton sound like a Plexi or Triple Rectifier. However, if you're more into vintage clean / edge of breakup, or Classic Rock type sounds, you might like ANALOGyAMP as much as I do! There should be a few demos on YT by now, so please do go check 'em out, and I hope you decide to give ANALOGyAMP a try. About The UI Not everyone likes the UIs of my latest (2025) plugins - I get it. However, the simplistic and generic approach allows me to (a) 99% focus on the DSP, sound quality and CPU performance, and (b) significantly reduce the development (and potential maintenance) time, which is reflected in my pricing. For more info and support please visit: www.waverley-instruments.com/robjackson

Screenshots

FAC Polyflo3 screens
ANALOGyAMP4 screens

Verdict

The call

The clearest difference is in-app purchases: ANALOGyAMP at none against FAC Polyflo's 3. ANALOGyAMP also leads on price ($2.99 vs $9.99) and iOS requirement (12.0 vs 16.4). FAC Polyflo's advantage is chart position (#181 vs unranked) and ratings volume (11 vs 2). On rating, review sentiment, ads and monetization model 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 ANALOGyAMP $2.99 up front. FAC Polyflo sells 3 one-off in-app purchases. ANALOGyAMP asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for FAC Polyflo against 5.0 for ANALOGyAMP. That said, the two scores are not equally well evidenced: FAC Polyflo has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Scorecard5 real differences · 6 level
FAC Polyflo versus ANALOGyAMP: the parameters behind the verdict, then further details
ParameterFAC PolyfloANALOGyAMP
Price$9.99$2.99 — better
Rating4.9 (11 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11 — better2
Update frequency—Every 2 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
Best chart rank#181 — better—
DevicesiPhone, iPad, MaciPhone, iPad, iPod, Mac — better
Requires iOS16.412.0 — 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%

ANALOGyAMP

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

FAC Polyflo

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

ANALOGyAMP

No in-app purchases

Questions

Is FAC Polyflo free?
FAC Polyflo costs $9.99, and also offers in-app purchases.
Is ANALOGyAMP free?
ANALOGyAMP costs $2.99, with no in-app purchases.
Which has better reviews, FAC Polyflo or ANALOGyAMP?
ANALOGyAMP is rated higher. FAC Polyflo averages 4.9 out of 5 from 11 ratings, while ANALOGyAMP averages 5.0 from 2 ratings.
Do FAC Polyflo or ANALOGyAMP have ads?
Neither FAC Polyflo nor ANALOGyAMP shows ads.

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