Comparison

FAC Gravity vs BATTUTA 8

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

Head to head
About

FAC Gravity

Create unique audio effects like Barberpole glissandos, spectral illusions, and evolving echoes. This frequency shifter offers stereo or mono processing with customizable feedback loops and modulation for dynamic sound design.

Highlights
  • Barberpole glissandos and spectral illusions
  • Stereo or mono frequency shifting
  • Spiral feedback loop with delay and filtering
  • Modulation matrix with LFO and envelope follower
  • Tempo-synced or MIDI-driven effects
  • Dry/wet mix and optional limiting
Features
Read full description

FAC Gravity AUv3 Plugin is a frequency shifter for creating Barberpole and Shepard style glissandos, spectral illusions, stereo rotation, chorusing, phasing, evolving echoes, infinite cosmic spaces, and all the combinations you’ll make. The plugin gives you two ways to process the audio source. In Stereo mode, each channel is shifted independently, with a Ratio control determining how closely their frequency shifts align. In Mono mode, FAC Gravity extends the internal quadrature processing to create a wide stereo image from the mono source. The frequency shift can move up or down, from subtle to more extreme spectral transformations. You can set the amount in Hz for classic Bode-style frequency shifting, make it follow your host tempo for rhythmic patterns, or even control it from MIDI notes for a more hands-on approach. A new dimension appears when you let the shifter feed back into itself with Spiral, a customizable loop with delay, blur, filtering, and different characters that shape how the sound circles, smears, interacts, and evolves over time. The result can range from bubbling textures to infinite sustained tones and noisy analog self-oscillation. Each character takes the feedback somewhere different. To dive deeper into new sonic dimensions, FAC Gravity comes with its own modulation module. The LFO, envelope follower, and flexible modulation matrix let you animate most parameters, from subtle evolving movements to complex, rhythmically reactive changes. You can even make the stereo field animate and rotate continuously by making the Width, Phase, and Pan parameters spin! You can shape the effect further by blending the processed signal with the original, while the optional limiter keeps the most extreme combinations in check. • Barberpole glissandos, spectral illusions, rotating stereo, evolving echoes • Dual Frequency Shifting, or Mono Shifting with Quadrature Stereo Widening • Organic Spiral Loop, from gentle feedback to pure analog self-oscillation • Integrated delay, diffusion blur, and independent low/high filtering • Modulation matrix, multi-source envelope follower • LFO with classic waveforms and random spline • Spinning modulation to rotate and animate the stereo field • Tempo-synced or MIDI-driven Frequency Shift, LFO, and Delay • Dry/Wet mix, optional limiting, and goniometer visualization • Advanced Responsive Design, portrait and landscape views • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro The documentation is available at fredantoncorvest.com/FAC_Gravity.html This is an AUv3 Effect and requires a compatible host to work The in-app purchases are for tipping only, the app is fully functional without them

About

BATTUTA 8

Create unique percussive sounds and sequences with this analog-style instrument. Shape kicks, hits, and mechanical noises using a dual-VCO voice, eight-step sequencer, and extensive patching options. Save and recall complete musical states for live performance.

Highlights
  • Dual-VCO percussion voice
  • Eight-step pitch and velocity sequencer
  • Tunable impact body resonator
  • Resonant low-pass/high-pass filter
  • Seven auto-saving sequence slots
  • 24-point audio/CV/clock patch system
  • MIDI/MPE controller support
Features
Read full description

BATTUTA 8 is a patchable percussion synthesizer and sequencer for iPhone and iPad, available standalone and as an AUv3 instrument. Build deep kicks, metallic hits, noisy textures and shifting rhythmic patterns with two oscillators, fast envelopes and hands-on patching. SHAPE THE HIT Tune two wide-range oscillators, switch waveforms and explore hard sync and oscillator-to-oscillator FM. Blend in noise, then shape pitch, filter and volume with three independent percussion envelopes. A resonant low-pass or high-pass filter takes the sound from rounded bass to sharp, unstable percussion. MAKE THE PATTERN Edit pitch and velocity directly across eight steps. Set sequence length from 1 to 8 steps on the main panel, adjust tempo in whole BPM or enter an exact decimal value, and choose how the pitch sequence controls the oscillators. Seven sequence slots hold independent instrument states, including the sequence, sound and patch settings. Copy and paste a complete slot with its sound, or use the separate pattern editing tools to rotate, reverse and vary a sequence. Recall slots from the panel or with MIDI keyswitches. EXPLORE FLAVOUR Choose oscillator colour and waveform with graphical selectors, adjust pulse bias, and shape the filter with drive, selectable slopes, profiles and character. IMPACT BODY adds a tuned resonator for extra body and ringing textures. PATCH AND PERFORM The 24-socket patch system connects audio, modulation, envelopes, velocity, trigger and clock signals. Explore new relationships between the voice and sequencer, then save the patch with your sound. EXT brings together delay and reverb, MIDI/MPE controller setup and Learn, performance macros and sequence-slot settings. Edit the IMPACT signature macro's targets and ranges to shape several parameters with one gesture. KEEP YOUR SOUNDS Save complete USER presets and access the same library in standalone and AUv3. Optional private iCloud sync keeps USER presets available across devices using the same Apple Account. Local presets remain available offline; iCloud sync requires network access and available iCloud storage. PLAY YOUR WAY Use BATTUTA 8 on its own or load it as an AUv3 instrument in a compatible host such as AUM. FULL and COMPACT layouts adapt the controls to iPad, iPhone and plug-in windows. The built-in GUIDE explains the instrument, patching and preset workflow. Explore BATTUTA 8: https://trambustissimo.com/#battuta Support: support@alessandroguardascione.com

Screenshots

FAC Gravity4 screens
BATTUTA 84 screens

Verdict

The call

The clearest difference is rating: FAC Gravity at 4.9 against BATTUTA 8's 4.3. BATTUTA 8's advantage is in-app purchases (none vs 3) and price ($7.99 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 Gravity costs $9.99 and BATTUTA 8 $7.99 up front. FAC Gravity sells 3 one-off in-app purchases. BATTUTA 8 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAC Gravity holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

Scorecard3 real differences · 7 level
FAC Gravity versus BATTUTA 8: the parameters behind the verdict, then further details
ParameterFAC GravityBATTUTA 8
Price$9.99$7.99 — better
Rating4.9 (8 ratings) — better4.3 (3 ratings)
Positive reviews—66.7% of reviews
Number of ratings8 — better3
Update frequency—Every 3 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size4 MB20 MB
Age rating4+4+
DeveloperFrederic CorvestAlessandro Guardascione

In-app purchases

3 purchases

FAC Gravity

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

BATTUTA 8

No in-app purchases

Questions

Is FAC Gravity free?
FAC Gravity costs $9.99, and also offers in-app purchases.
Is BATTUTA 8 free?
BATTUTA 8 costs $7.99, with no in-app purchases.
Which has better reviews, FAC Gravity or BATTUTA 8?
FAC Gravity is rated higher. FAC Gravity averages 4.9 out of 5 from 8 ratings, while BATTUTA 8 averages 4.3 from 3 ratings.
Do FAC Gravity or BATTUTA 8 have ads?
Neither FAC Gravity nor BATTUTA 8 shows ads.

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