Comparison

MusiKraken 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

MusiKraken

Transform your mobile device into a powerful, customizable MIDI controller. Utilize built-in sensors and connected hardware to create unique musical expressions and control instruments or software. Supports advanced MIDI features and audio unit plugins.

Highlights
  • Modular MIDI controller editor
  • Device sensor inputs (touch, motion, camera, mic)
  • Connect external devices (game controllers, Apple Watch)
  • MIDI effects and routing
  • Audio Unit (AUv3) plugin hosting
  • MIDI 2.0 support
  • OSC data output
Features
Currently charting
Read full description

MusiKraken is a modular MIDI Controller Construction Kit, empowering you to fully harness the capabilities of your mobile device's hardware. Winner of a 2022 MIDI Innovation Award! Make music using device sensors like Touch, Motion Sensors, Camera (face, hand, body and color tracking, including TrueDepth and LiDAR support) and Microphone, or connected devices like Game Controllers, Apple Watch or AirPods. Choose from several types of modules in the editor and connect the ports to create your own personal MIDI controller setup. Route the MIDI signals through effect modules to control multiple instruments simultaneously or invent creative new MIDI controller combinations. MusiKraken supports sending and receiving MIDI data over Wi-Fi, Bluetooth or via Core MIDI (for example by using Inter-Device Audio and MIDI (IDAM)). And it can host Audio Unit (AUv3) instrument plugins. Or send the sensor data via OSC. MusiKraken is also one of the first apps to officially support MIDI 2.0! You already own a very powerful device with all kinds of sensors and connection possibilities. With this app you can use these sensors as inputs, combine them with all kinds of MIDI effects and send the resulting MIDI events to your computer, synthesizer, any other MIDI-capable app or Audio Unit to to create your own, expressive MIDI controller setup. Your device for example has a multitouch screen. Use this with the Keyboard module to slide on the keys to control multiple musical parameters simultaneously. Using MPE, MIDI 2.0 or the Chord Splitter also allows you to control these parameters separately per key. Newer devices also support tracking the finger radius (or pressure on older devices), which adds another dimension of control. Multitouch is also used by the Chords Pad to play the chords of a selected scale, or the Touchpad, which allows you control values via touch gestures. Another unique input sensor is the camera: MusiKraken supports tracking your hands in front of the camera, your body pose, your face or objects with specific colors. This way you can for example use your iOS device as a Theremin, jump or dance around in front of the camera to generate notes or control audio parameters, use your mouth to control the sound of a virtual trumpet, or any other combination. If your device has a TrueDepth or LiDAR sensor, you can also use the distances as input values. Your device also has motion sensors: Accelerometer, Gyroscope and Magnetometer. They can be either used separately, or combined to get the current rotation of the device in three dimensions. Use this to generate sounds or control parameters while shaking or tilting your device. Your device also has a microphone, and MusiKraken can detect the pitch or amplitude of the signal. Your iOS device also allows you to connect to external devices. MusiKraken for example supports Game Controllers (trigger events on button or thumbstick changes, motion sensors, haptics and light on supported Game Controllers), Apple Watch (motion sensors, digital crown, touch, heart rate) or the motion sensors within AirPods. The real power comes once you start combining the sensors with the effect modules. There are effects that can be used to change or filter the MIDI events. Some effects allow you to combine multiple input sources into new output values. Or splits chords into separate notes so that they can be sent to different channels. Important: Please note that some of the modules only work on iOS devices with specific hardware: ARKit Face Tracking and the TrueDepth module need a TrueDepth front camera, and Hand and Body Pose Tracking needs at least iOS 14, and might be too slow on older devices. HealthKit is used in the app to access Apple Watch data like heart beat or motion sensors. The app only uses sensor data to generate MIDI events.

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
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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

MusiKraken3 screens

Verdict

The call

The clearest difference is review sentiment: MusiKraken at 97% against Circa Looper's 33%. MusiKraken also leads on rating (5.0 vs 4.6) and chart position (#195 vs unranked). Circa Looper's advantage is price ($7.99 vs $9.99). On ratings volume, update cadence, ads and in-app purchases 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

MusiKraken costs $9.99 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

MusiKraken holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 24 and 10 respectively. Written reviews point the same way: 97% of MusiKraken's written reviews are positive against 33% of Circa Looper's.

UpkeepUpdate frequency

MusiKraken ships an update every 4 weeks, Circa Looper every 3 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 6 level
MusiKraken versus Circa Looper: the parameters behind the verdict, then further details
ParameterMusiKrakenCirca Looper
Price$9.99$7.99 — better
Rating5.0 (24 ratings) — better4.6 (10 ratings)
Positive reviews97.0% of reviews — better33.3% of reviews
Number of ratings24 — better10
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#195 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPad
Requires iOS15.0 — better16.0
Further details — not scored
Size110 MB66 MB
Age rating4+4+
DeveloperSnarpAudio Damage, Inc.

Customer experience

MusiKraken

All ratings24 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews33 reviews
Positive97.0%
Neutral3.0%
Negative0.0%

Circa Looper

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

In-app purchases

None

MusiKraken

No in-app purchases

None

Circa Looper

No in-app purchases

Questions

Is MusiKraken free?
MusiKraken costs $9.99, with no in-app purchases.
Is Circa Looper free?
Circa Looper costs $7.99, with no in-app purchases.
Which has better reviews, MusiKraken or Circa Looper?
MusiKraken is rated higher. MusiKraken averages 5.0 out of 5 from 24 ratings, while Circa Looper averages 4.6 from 10 ratings.
Do MusiKraken or Circa Looper have ads?
Neither MusiKraken nor Circa Looper shows ads.
Which is updated more often, MusiKraken or Circa Looper?
MusiKraken ships an update every 4 weeks, and Circa Looper every 3 weeks. Most recently, MusiKraken was updated on October 27, 2026 and Circa Looper on October 24, 2026.

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