Comparison

VoxSyn vs Circa Looper

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

Head to head
About

VoxSyn

Transform your voice into a versatile vocal sound generator. This app captures your vocal modulations to create unique sounds beyond traditional vocoding, allowing you to trigger synthesizer sounds with your voice or a keyboard. Expand your sonic palette with a vast pool of presets and effects.

Highlights
  • Voice control of pitch and timbre
  • 22-channel vocoder
  • Integrated preset synthesizer engine
  • Hundreds of presets
  • Hi-end audio effects
  • Audiobus and Inter App Audio compatible
  • MIDI and background audio support
Features
Read full description

VoxSyn turns your voice into the most flexible vocal sound generator ever. Instantly following even subtle modulations of pitch and spectral changes of your voice VoxSyn creates signature vocal sounds far beyond traditional vocoding. Talk or sing into the microphone and you’ll trigger various synthesizer sounds following your voice pitch or the notes touched on the hexagonal keyboard / external MIDI Keyboard. The basic sounds are selected from a vast pool of predefined sounds from the famous TERA synthesis engine which can be further expanded by its unique random sound generator. The harmonic table note layout visualizes your voices pitch in realtime and also let you play notes for more traditional vocoder effects. VoxSyn is Audiobus compatible and can be used in the Input, Filter and Output slots in the Audiobus signal chain. The output can be recorded to an audio file which you can use with other Apps and programs for further processing. Features: - Voice control of pitch and timbre - 22-channel Vocoder - Integrated preset synthesizer engine - Hundreds of presets included - Hi-end Reverb and Chorus/Delay/Distortion/Phaser effects - Share/Export of audio recordings - CoreMIDI / Virtual MIDI and Background audio - Inter App Audio compatible - Audiobus 2 support (Input/Filter/Output) with state saving

About

Circa Looper

A powerful multi-channel looping instrument for iPad, designed for musicians and producers. It offers six independent stereo loop layers, deep modulation, precision syncing, and built-in effects for creating complex patterns and evolving soundscapes. Its touch-friendly interface allows for hands-on creative control and seamless DAW integration.

Highlights
  • Six independent stereo loop layers
  • Deep modulation control
  • Precision syncing
  • Built-in reverb and delay
  • Touch-friendly interface
  • Full MIDI mapping
  • Drag-and-drop audio export
Features
Read full description

Circa runs as a standalone app, or as an AUv3 plugin in hosts such as GarageBand, Logic, AUM and Cubase. Equal parts workhorse and abstract creative tool, Circa is a six track multi-layer looping environment that can do most of the things your popular floor pedal looper can while also paying homage to the serendipitous world of ambient looping. Each layer can sync to the host, a master loop, or free run, and can be triggered in sync, with an audio signal, or freely. Circa has seven stereo outputs (including a dedicated cue output for monitoring) and built-in reverb and delay. Add in a complete MIDI control and LFO modulation system and Circa is a full looping workstation. Features -- Multi-Layered Looping Circa has six layers that can operate independently or in sync with each other and/or the host. Circa can record from the stereo input, or self-record via an internal buss for interesting feedback possibilities. -- Standalone Or Plugin As a standalone app, Circa has its own audio and MIDI settings: choose your audio interface, sample rate and buffer size, pick the input pair, send each of Circa's seven outputs to any output pair on your interface, and select a MIDI input. Sync to incoming MIDI clock, or let Circa set the tempo from your first loop. As an AUv3 plugin, it lives inside your host and syncs to its transport. -- Designed To Be Touched And Played Circa's user interface is made for tactile manipulation, with touch strips for speed and position (including dedicated pages). The position strip can be further subdivided with slices. All this works together to turn a looping effect into a playable instrument. -- Easy To Get Along With Circa's layers each have an undo for destructive edits like recording, overdubbing, and erasing. -- Controllability And Modulation Circa has 30 modulation slots. Each one can map a MIDI controller to any of Circa's looping functions, or run an LFO: seven shapes, free-running or tempo-synced, with rate, phase and level, modulating speed, start and end position, level, panning, delay and reverb sends, filter frequency and resonance, or the slice the play head is on. LFOs swing around wherever each control is set, so the knobs stay in charge. -- Self-Contained Circa has a full internal mixer, filtering on each layer, and studio-quality send reverb, send delay, parametric EQ and compressor taken directly from Audio Damage's extensive effect library. -- Expandable And Performance-Ready Circa has 7 outputs in all: six assignable stereo outputs and a cue output for monitoring. Send any layer to any of the six stereo outputs, while keeping the cue for soloing, recording, and editing, unheard by the audience. In the standalone app, each output can go to its own pair of outputs on your audio interface. -- Ecosystem-Aware Circa's user presets are cross-platform compatible, and work on any instance of Circa, whether on macOS, Windows, Linux, or iOS. In addition, sessions created in GarageBand or Logic on iOS will open in the desktop version on macOS if you have purchased a license to that version.

Screenshots

VoxSyn3 screens

Verdict

The call

The clearest difference is rating: Circa Looper at 4.6 against VoxSyn's 3.1. VoxSyn's advantage is price ($0.99 vs $7.99) and review sentiment (48% vs 33%). On ratings volume, ads, in-app purchases 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

VoxSyn costs $0.99 and Circa Looper $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Circa Looper holds the better App Store score, 4.6 against 3.1. Both are backed by a comparable volume of ratings — 18 and 10 respectively. Written reviews complicate that: 48% of VoxSyn's written reviews are positive against 33% of Circa Looper's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

VoxSyn ships an update every 9 days, Circa Looper every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
VoxSyn versus Circa Looper: the parameters behind the verdict, then further details
ParameterVoxSynCirca Looper
Price$0.99 — better$7.99
Rating3.1 (18 ratings)4.6 (10 ratings) — better
Positive reviews48.1% of reviews — better33.3% of reviews
Number of ratings18 — better10
Update frequencyEvery 9 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS8.0 — better16.0
Further details — not scored
Size31 MB66 MB
Age rating4+4+
DeveloperHarry GohsAudio Damage, Inc.

Customer experience

VoxSyn

All ratings18 ratings
Positive50.0%
Neutral11.1%
Negative38.9%
Written reviews27 reviews
Positive48.1%
Neutral14.8%
Negative37.0%

Circa Looper

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews6 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

VoxSyn

No in-app purchases

None

Circa Looper

No in-app purchases

Questions

Is VoxSyn free?
VoxSyn costs $0.99, with no in-app purchases.
Is Circa Looper free?
Circa Looper costs $7.99, with no in-app purchases.
Which has better reviews, VoxSyn or Circa Looper?
Circa Looper is rated higher. VoxSyn averages 3.1 out of 5 from 18 ratings, while Circa Looper averages 4.6 from 10 ratings.
Do VoxSyn or Circa Looper have ads?
Neither VoxSyn nor Circa Looper shows ads.
Which is updated more often, VoxSyn or Circa Looper?
VoxSyn ships an update every 9 days, and Circa Looper every 3 weeks. Most recently, VoxSyn was updated on October 15, 2026 and Circa Looper on October 14, 2026.

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