Comparison

Autony vs FD

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

Head to head
About

Autony

This app generates evolving musical sequences using a MIDI signal. It can be constrained to scales and chords, transposed, and mutated for dynamic musical output. All controls are MIDI-automatable and it requires a host app to function.

Highlights
  • Generates evolving musical sequences
  • MIDI output for synths and hardware
  • Constrain sequences to scales and chords
  • On-the-fly transposition
  • Sequence mutation for dynamic evolution
  • MIDI automation of all controls
Features
Read full description

AUv3 Midi sequence generator which generates musical evolving sequences that you can further automate or modulate via midi. A clever algorithm creates a musical sequence which is output as a midi signal which can be used to drive a software synthesiser or a hardware device. Various settings allow the sequence to be constrained to scales and chords, transposed on the fly and also allowed to gently mutate giving an evolving sequence. All the controls can be modulated or automated via midi. Needs a AU host like AUM and generates no sound on its own. "My solution has been to make the equipment unreliable in various ways." - Brian Eno

About

FD

This app is a semi-modular audio effect plugin featuring dedicated filter, delay, and modulation sections. It allows for the creation of rhythmic filter sequences and a wide range of complex audio effects through its flexible modulation matrix.

Highlights
  • Semi-modular effect plugin
  • Modulated filter section
  • Delay stage
  • Step sequencer
  • Low Frequency Oscillator
  • Mod matrix
  • Tempo sync
Features
Read full description

FD-1 is a Semi-Modular Effect Plugin including dedicated Filter, Delay and Modulation sections. At it's core, FD-1 is designed to create filter rythms and grooves by first sending the signal through a modulated filter section before feeding it to a delay stage but it goes much further than that. Built-in Step Sequencer and Low Frequency Oscillator serve as modulation sources and are ideal for creating rythmic filter sequences either free running or tempo-synced to a host application. However, due it's semi modular nature, not just filter cutoff but every control within FD-1 can be a modulation target allowing for an increased range effects and combinations ranging from Chorus and Flanger type effects over Analog and Tape Style echos to complex Stutter and Repeat effects. Overview: - VA Multi Mode Filter with 2 & 4 Pole options - Digital Stereo Delay with Tempo Sync and Time Range Control - Analog Style Step Sequencer - Low Frequency Oscillator - Easy to use Mod Matrix - Input Low-Cut and Drive Controls - Individual Return Levels for Filter and Delay Connectivity: - Standalone - AUv3 - IAA - AudioBus (Filter) MIDI: - Tempo Sync - CC Control Requirements: - iOS9+ - iPad 4th generation or newer

Screenshots

Autony2 screens
FD4 screens

Verdict

The call

The clearest difference is update cadence: Autony at every 5 days against FD's every 4 months. Autony also leads on price ($3.99 vs $9.99). FD's advantage is iOS requirement (9.0 vs 15.6). On rating, review sentiment, ratings volume and ads 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

Autony costs $3.99 and FD $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Autony against 4.6 for FD. Both are backed by a comparable volume of ratings — 40 and 32 respectively. Written reviews are what separate them: 61% of Autony's written reviews are positive against 67% of FD's.

UpkeepUpdate frequency

Autony ships an update every 5 days, FD every 4 months. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 7 level
Autony versus FD: the parameters behind the verdict, then further details
ParameterAutonyFD
Price$3.99 — better$9.99
Rating4.5 (40 ratings)4.6 (32 ratings) — better
Positive reviews60.9% of reviews66.7% of reviews — better
Number of ratings40 — better32
Update frequencyEvery 5 days — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.69.0 — better
Further details — not scored
Size1 MB61 MB
Age rating4+4+
DeveloperPagefall limitedKai Aras

Customer experience

Autony

All ratings40 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews23 reviews
Positive60.9%
Neutral13.0%
Negative26.1%

FD

All ratings32 ratings
Positive90.6%
Neutral0.0%
Negative9.4%
Written reviews9 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Autony

No in-app purchases

None

FD

No in-app purchases

Questions

Is Autony free?
Autony costs $3.99, with no in-app purchases.
Is FD free?
FD costs $9.99, with no in-app purchases.
Which has better reviews, Autony or FD?
FD is rated higher. Autony averages 4.5 out of 5 from 40 ratings, while FD averages 4.6 from 32 ratings.
Do Autony or FD have ads?
Neither Autony nor FD shows ads.
Which is updated more often, Autony or FD?
Autony ships an update every 5 days, and FD every 4 months. Most recently, Autony was updated on September 17, 2026 and FD on September 12, 2026.

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