Comparison

FAC Alteza vs ANALOGyGR

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

Head to head
About

FAC Alteza

This app provides an exospheric stereo reverb with ultra-low latency pitch shifting for lush, dreamy sound textures. It features a unique feedback processor, fine-tuning of all-pass delays, and advanced controls for stereo width and sidechain ducking. Designed for musicians seeking ethereal soundscapes.

Highlights
  • Exospheric stereo reverb
  • Ultra-low latency pitch shifting
  • Shimmer and harmonizer effects
  • Unique feedback processor
  • All-Pass delay fine-tuning
  • Sidechain input for ducking
  • Separate Dry/Wet and feedback outputs
Read full description

• Exospheric stereo reverb with ultra low latency pitch shifting • Amazingly lush, dreamy and beautiful • Shimmer kind effect, harmonizer • Unique feedback processor and fine tuning of the All-Pass delays • High-pass filter and stereo width input controls, separate Dry/Wet outputs • Sidechain input to duck the reverb • Multiple outputs, extra output bus to route the feedback signal to your own fxs • Advanced Responsive Design, portrait and landscape views • iOS Audio Unit V3 - Universal (iPad/iPhone) Designed for ethereal lush sound textures and dreamy space reflection, FAC Alteza is the perfect solution to bring your instruments to heaven in no time. Thanks to a powerful feedback section containing, inter alia, two pitch shifters, the unit is able to deliver the very typical "Shimmer" sound kind effect very much prized by musicians that are making ambient music, or any kind of music that needs to be carried by a fabulous angelic evolving choir section. FAC Alteza is definitely not "another shimmer reverb..." effect because it comes with additional parameters that make it very versatile. A particular attention to each part of the signal path was necessary to reach this level of high-end quality. Here some features that make FAC Alteza an outstanding unit: • the input signal is not monoized by default, a knob allows to control the width of the input stereo image before reaching the reverb • the topology of the effect, based upon a series of All-Pass delays, allows to control the intrasec characteristics of the reverberation • the number of All-Pass delays per stage and the echo density are alterable in the main section and in the feedback section • two ultra low latency pitch shifters deliver progressive pitch-shifting of the reverberation tail or the input signal • the feedback section contains a blend knob to control how much of the original signal is mixed with the feedback reverb • the wet signal can be ducked by an external signal provided by the host - AuV3 and Standalone App - To use the sidechain and/or to output the additional feedback signal, you need a host able to provide to the AuV3 an input bus and an additional output bus. The documentation is available at fredantoncorvest.com/FAC_Alteza.html

About

ANALOGyGR

This virtual analog synthesizer generates experimental sound design and atmospheric textures using a unique 'granalog' approach. It features eight polyphonic voices with multiple oscillators and adjustable grain parameters for dynamic, evolving sounds. Designed for real-time performance and manipulation, it integrates with MIDI devices and hosts.

Highlights
  • Eight-voice polyphonic virtual analog synth
  • Granular-inspired oscillator rendering
  • Adjustable grain shape and length
  • Randomized oscillator and grain parameters
  • MIDI CC and polyphonic aftertouch support
  • Real-time performance manipulation
  • AUv3 plugin and standalone operation
Read full description

ANALOGyGR Granalog Synth (AUv3) ANALOGyGR is a virtual instrument plugin that can run standalone, or in any AU compatible host such as Logic Pro or GarageBand. Please note that the standalone version does not include a built-in keyboard - you need to connect a suitable MIDI device to play the synth. What's a "granalog" synth? It's granular... but (probably) not as you know it. ANALOGyGR (analog-ee gee are) is not a granular synth in the traditional sense, but it does borrow some ideas and terminology from granular synthesis. Please note that ANALOGyGR is not a file-based audio effects processor that allows you to load your own samples, and this is what makes it different, possibly even unique! At its heart, ANALOGyGR is an eight voice polyphonic virtual analog synth with oscillators that are rendered as "grains". While ANALOGyGR can get close to sounding like a "normal" synth, it's really aimed at people who prefer more experimental type sound design and atmospheric textures. For traditional analog sounds, I'd ask you to also take a look at the popular ANALOGyXS (poly) and ANALOGyX1 (mono) synths as all three cover slightly different sonic territory. Design Overview Each of the 8 voices in ANALOGyGR have 3 dedicated grain oscillators each (saw, triangle and square waveforms), and these 24 oscillators are used to generate grains of varying shape (saw, ramp and triangle envelopes) and variable length (50ms to 10 seconds). The oscillator and grain shape can also be randomly selected on each grain cycle for some really interesting dynamic textures, and grains are also randomly spread in the stereo field. ANALOGyGR also has a noise generator that can be applied to the main amplitude ASR envelope, or at the grain level. Grain notes can be pitched up or down an octave on alternate cycles or randomly per voice, and can also glide from one note to the next which can make even the simplest chord sound much more intriguing! ANALOGyGR also shares many of the "under the hood" features introduced in ANALOGyXS and ANALOGyX1 which can result is some very complex, evolving and dramatic sounds for a relatively small synth with just 16 parameters. Speaking of which... ANALOGyGR has been designed very much as a performance-based instrument to be played and manipulated in real-time. To facilitate this, all of the instrument parameters are controllable via dedicated MIDI CCs from your keyboard or another MIDI generator plugin. ANALOGyGR can also respond to channel and polyphonic aftertouch pressure MIDI messages for an enhanced and expressive playing experience. As the sounds of ANALOGyGR typically tend to evolve over time, it is perhaps better suited to sustained note passages and sparse / simple chord voicings combined with a dynamic playing style. Please note that while ANALOGyGR has been designed to be CPU-friendly, if you want to take advantage of the extended MIDI capabilities such as polyphonic aftertouch and parameter modulation, a fairly up to date hardware setup is recommended. More info: https://www.waverley-instruments.com/robjackson

Screenshots

FAC Alteza4 screens
ANALOGyGR4 screens

Verdict

The call

The clearest difference is in-app purchases: ANALOGyGR at none against FAC Alteza's 3. ANALOGyGR also leads on price ($2.99 vs $9.99) and update cadence (fortnightly vs every 5 months). FAC Alteza's advantage is rating (4.9 vs 4.7) and ratings volume (81 vs 10). On review sentiment, 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 Alteza costs $9.99 and ANALOGyGR $2.99 up front. FAC Alteza sells 3 one-off in-app purchases. ANALOGyGR asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAC Alteza holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: FAC Alteza has 81 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 94% of FAC Alteza's written reviews are positive against 100% of ANALOGyGR's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

FAC Alteza ships an update every 5 months, ANALOGyGR fortnightly. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
FAC Alteza versus ANALOGyGR: the parameters behind the verdict, then further details
ParameterFAC AltezaANALOGyGR
Price$9.99$2.99 — better
Rating4.9 (81 ratings) — better4.7 (10 ratings)
Positive reviews93.9% of reviews100.0% of reviews — better
Number of ratings81 — better10
Update frequencyEvery 5 monthsFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.012.0 — better
Further details — not scored
Size3 MB13 MB
Age rating4+4+
DeveloperFrederic CorvestRob Jackson

Customer experience

FAC Alteza

All ratings81 ratings
Positive97.5%
Neutral1.2%
Negative1.2%
Written reviews49 reviews
Positive93.9%
Neutral4.1%
Negative2.0%

ANALOGyGR

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

FAC Alteza

Reported bugs

2 issues
  • Not working on 2021 iPad as host
  • Doesn't freeze properly in Cubasis

Requested features

4 requests
  • Presets toned down
  • Encoders rotate slower for fine adjustments
  • More presets
  • MIDI control by foot switches

ANALOGyGR

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

FAC Alteza

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

ANALOGyGR

No in-app purchases

Questions

Is FAC Alteza free?
FAC Alteza costs $9.99, and also offers in-app purchases.
Is ANALOGyGR free?
ANALOGyGR costs $2.99, with no in-app purchases.
Which has better reviews, FAC Alteza or ANALOGyGR?
FAC Alteza is rated higher. FAC Alteza averages 4.9 out of 5 from 81 ratings, while ANALOGyGR averages 4.7 from 10 ratings.
Do FAC Alteza or ANALOGyGR have ads?
Neither FAC Alteza nor ANALOGyGR shows ads.
Which is updated more often, FAC Alteza or ANALOGyGR?
FAC Alteza ships an update every 5 months, and ANALOGyGR fortnightly. Most recently, FAC Alteza was updated on November 7, 2026 and ANALOGyGR on November 5, 2026.

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