voice bot vs mKer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
voice bot
Transform your voice into a robotic sound using a real-time channel vocoder. Shape sounds with spectral information, play live through the microphone, record loops, and apply various audio effects. Supports MIDI input and can be used standalone or as a plugin.
- Real-time channel vocoder
- Microphone input
- Audio effects (bit crusher, delay, flanger)
- MIDI support (Core MIDI, MPE)
- Standalone and AUv3 plugin
- Loop recording and playback
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Voice bot is a real time channel vocoder. A vocoder takes the spectral information of one sound also known as a modulator and uses it to shape another sound called a carrier. The resulting sound is a bit like a singing robot. Use the microphone to play live or record your own loops for playback, with a few different trigger modes using the keyboard. Further process the sound with a bit and sample crusher, delay and flanger. Play with the built in 25 key dynamic keyboard or using core MIDI with options for MPE. Run voice bot stand alone on iPad and iPhone or as a AUv3 plugin in your favourite host. Connections to other apps are also available through Audiobus and Inter Appp Audio. +++ Microphone input +++ Vocoder with up 128 filter bands +++ Polyphonic carrier source or Mono with glide settings +++ Built in 3 Oscillator carrier source, with saw, square and noise shapes +++ Record or import carrier sample loops +++ Freeze spectrum +++ Bit and sample rate crusher +++ Pitch tracking using Yin algorithm +++ 4 tap stereo delay +++ flanger +++ Multiple sample loop trigger modes +++ 25 key dynamic keyboard +++ Core Midi, Bluetooth Midi, Inter App Audio Midi and AUv3 MIDI +++ Midi CC available for all audio parameters +++ Limited MPE Midi support +++ Modulateble parameters: bands, bit crush, sample crush, delay feedback, flanger mix, vibrator and pitch bend
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.
- 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
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*** 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!
Screenshots
Verdict
The clearest difference is review sentiment: mKer at 64% against voice bot's 43%. mKer also leads on update cadence (every 3 weeks vs every 2 months) and price ($3.99 vs $4.99). voice bot's advantage is rating (4.7 vs 4.5) and device support (3 vs 1). 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
voice bot costs $4.99 and mKer $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
voice bot holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 18 and 22 respectively. Written reviews complicate that: 43% of voice bot's written reviews are positive against 64% of mKer's, so the app with the better star average is not the one people write more warmly about.
voice bot ships an update every 2 months, mKer every 3 weeks. The most recent releases landed on September 30, 2026 and August 22, 2026 respectively.
| Parameter | voice bot | mKer |
|---|---|---|
| Price | $4.99 | $3.99 — better |
| Rating | 4.7 (18 ratings) — better | 4.5 (22 ratings) |
| Positive reviews | 42.9% of reviews | 63.6% of reviews — better |
| Number of ratings | 18 | 22 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 13 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Erik Sigth | Axart Labs OU |
Customer experience
voice bot
mKer
In-app purchases
voice bot
No in-app purchases
mKer
No in-app purchases









