Comparison

mKer vs Stellarvox

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

Head to head
About

mKer

A versatile MIDI step sequencer designed for music creation. It offers multiple outputs, extensive pattern and lane customization, and advanced step editing. Best used within an AUv3 host app for sound generation.

Highlights
  • 8 MIDI outputs
  • 64 Patterns with 16 Lanes each
  • Customizable Steps and Step Size per Lane
  • Advanced Step Parameters (Pitch, Velocity, Probability, etc.)
  • Flexible Editor with Step Entry Keyboard
  • 32 Clips with Repeat Functionality
  • Performance Tab with Assignable Sliders and Morphing
Features
Read full description

*** Note *** Although mKer can run as a stand-alone app, the recommended way to use it is as an AUv3 plugin from inside a suitable AU Host app that supports MIDI Processors such as AUM, Audiobus, Cubasis etc. Please also note that mKer is a MIDI app/plugin. That means that it does not produce sound itself - it needs to be connected to an audio source that can receive MIDI. mKer is a versatile, multi-output MIDI step sequencer with an extensive range of features. These include: - 8 MIDI outputs - 64 Patterns - 16 Lanes (aka tracks) per Pattern - Independent number of Steps (1-32) and Step Size (1/64-256 beats) per Lane per Pattern - Every step can play either a single note, an interval (2 notes) or a chord (3 or 4 notes) - Lane Step parameters: Play Cycles, Skip Cycles, Play Offset Cycles, Pitch, Velocity, Probability, Offset (can be used for ‘swing’ like effects), Repeat (rachet) and Gate - A flexible Editor that includes a step entry keyboard, parameter sliders and a variety of options and utilities designed for to make the workflow intuitive and fast - 32 Clips with 1-8 Steps per Clip, 1-128 repeats per step (every clip step has one pattern) - 3 Play Modes: Pattern, Clip, Sequence (all Clips) - A Performance tab with 10 fully assignable MIDI sliders, a 12-snapshot bank and morphing function between the snapshots... - MIDI step input and real-time recording - 12-track beat generator with six genres, density, intensity and GM beat mapping ... and more!

About

Stellarvox

Design immersive ambient soundscapes with a hybrid reverb and artificial space designer. Create lush textures, deep spaces, and whispering backgrounds for electronic, experimental, and sound design projects. Offers intuitive controls and inspiring presets for quick, high-quality results.

Highlights
  • Hybrid reverb with artificial space designer
  • Algorithmic reflections tail processing
  • Dynamic timbre changes over time
  • Geometry and dimension control
  • Factory presets and random feature
  • MIDI learn support
  • Standalone and AUv3 module
Features
Currently charting
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Hybrid reverb with an artificial space designer, combining it with algorithmic reflections tail processing, is ideal to creating immersive ambience of deep spaces, lush atmospheric textures or stunning whispering backgrounds in your ambient, electronic, experimental and sound design projects. Unlike traditional algorithmic reverbs, Stellarvox constructs a complex model of a vast resonant sound spaces with choice of geometry, dimensions and tonal structure of the space, along with a unique feature that dynamically change the timbre of reflections over the reverberation time. The second algorithmic reverb allows you to prolong and blur reflections, adding extra dimensions to the sound space. Easy-to-use controls on a single screen, along with optimally designed parameters that always give great results, make insignificant the peculiarity of that kind of reverbs, when the model creates with a little delay after changing it. Factory presets and the random feature will give you a starting point of inspiration and allow you to get a quick result where you need just to slightly tweak the parameters to align with your idea. This application is great for ambient projects, it can create mesmerizing atmosphere from single infrequent sounds of various instruments, or giving a beautiful and deep backgrounds to sharp sequences in electronics, as well as for any experimental projects that require unusual, deep and rich sound ambience. Stellarvox is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). Stellarvox works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, with supports Audiobus host app. On MacOS, Stellarvox can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option) and audio unit parameters. Stellarvox has a built-in detailed description of all parameters also available as PDF file on the application site. Sound demo: https://www.youtube.com/watch?v=TEtZfvLtJy8 https://www.youtube.com/watch?v=FqCYa1tp2Qw You can find more information on Stellarvox and other audio apps at: https://motion-soundscape.blogspot.com

Screenshots

Stellarvox3 screens

Verdict

The call

The clearest difference is review sentiment: Stellarvox at 100% against mKer's 64%. Stellarvox also leads on rating (5.0 vs 4.5) and chart position (#191 vs unranked). mKer's advantage is price ($3.99 vs $11.99) and update cadence (every 3 weeks vs every 5 months). 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

mKer costs $3.99 and Stellarvox $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Stellarvox holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 22 and 11 respectively. Written reviews point the same way: 64% of mKer's written reviews are positive against 100% of Stellarvox's.

UpkeepUpdate frequency

mKer ships an update every 3 weeks, Stellarvox every 5 months. The most recent releases landed on August 22, 2026 and September 22, 2026 respectively.

Scorecard7 real differences · 4 level
mKer versus Stellarvox: the parameters behind the verdict, then further details
ParametermKerStellarvox
Price$3.99 — better$11.99
Rating4.5 (22 ratings)5.0 (11 ratings) — better
Positive reviews63.6% of reviews100.0% of reviews — better
Number of ratings22 — better11
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#191 — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size57 MB4 MB
Age rating4+4+
DeveloperAxart Labs OUIgor Vasiliev

Customer experience

mKer

All ratings20 ratings
Positive85.0%
Neutral5.0%
Negative10.0%
Written reviews11 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

Stellarvox

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

mKer

No in-app purchases

None

Stellarvox

No in-app purchases

Questions

Is mKer free?
mKer costs $3.99, with no in-app purchases.
Is Stellarvox free?
Stellarvox costs $11.99, with no in-app purchases.
Which has better reviews, mKer or Stellarvox?
Stellarvox is rated higher. mKer averages 4.5 out of 5 from 22 ratings, while Stellarvox averages 5.0 from 11 ratings.
Do mKer or Stellarvox have ads?
Neither mKer nor Stellarvox shows ads.
Which is updated more often, mKer or Stellarvox?
mKer ships an update every 3 weeks, and Stellarvox every 5 months. Most recently, mKer was updated on August 22, 2026 and Stellarvox on September 22, 2026.

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