Klankwelle vs miRack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Klankwelle
This app allows users to create and manipulate complex synthesizer sounds using a modular interface. Build up to eight synthesizers simultaneously, controlling them via an on-screen keyboard, step sequencer, or external MIDI devices. Fine-tune audio with built-in effects and an equalizer.
- Modular synthesizer creation
- Up to 8 synths simultaneously
- Built-in keyboard and step sequencer
- External MIDI support
- Dynamic compressor
- 10-band graphic equalizer
- Extensive module library (oscillators, filters, effects)
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Klankwelle is a modular synthesizer for iOS. Create up to 8 synthesizers at once and control them with a built-in keyboard or a 16-part step sequencer. Or play them with an external MIDI source. Fine-tune your sounds with a dynamic compressor and a 10-band graphic equalizer. Making a new synthesizer is easy: just add modules with a double-tap and wire up your architecture by dragging between connectors. Available modules include: OSCILLATORS Sine, Square, Sawtooth, Triangle, Noise, Ring FILTERS Lowpass, Highpass, Bandpass, Allpass, Notch, Peak, Formant ENVELOPES Linear, Quadratic EFFECTS Fuzz, Comb, Echo, Bitcrush, Auto Gain LOW-FREQUENCY OSCILLATORS Sine, Square, Sawtooth, Triangle, Linear Trigger ARITHMETIC Add, Subtract, Multiply, Convolution FEEDBACK CTRL Supported MIDI messages: Note on/off (velocity sensitive), Pitch bend, control change, program change
miRack
This app offers a comprehensive Eurorack-style modular synthesizer environment for creating custom synths, audio/MIDI effects, and controlling other applications. It features a vast library of modules and integrates with hardware and software for flexible music production and live performance.
- Polyphonic Eurorack-style modular environment
- Over 800 third-party modules
- AUv3 plugin hosting
- Multi-channel audio input/output
- MIDI input/output with clock sync
- Ableton Link support
- iCloud patch syncing
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miRack is a polyphonic Eurorack-style modular environment. It aims to provide user experience and audio quality close to those of the real Eurorack hardware. miRack can be used to build custom synthesizers, audio and MIDI effects, control other apps and equipment, as a playground to explore and learn modular synths, and for live performances. miRack is also available on macOS, including Audio Unit and VST plugins. * Comes with more than 800 modules created by third-party developers and adapted for mobile devices by miRack team. New modules are added regularly. * Includes AUv3 plugin. Can work as an instrument, audio effect or MIDI processor. Supports parameter automation to record and automate changes of almost any virtual module control. * AUv3 hosting capabilities (in-app purchase). Incorporate any AUv3 instrument, effect or MIDI effect plugins into your patches. * Controller module (in-app purchase) allows to design AUv3 user interface for your patch. * Multi-channel audio input and output (in both standalone and AUv3 modes), with full support for Expert Sleepers audio interface modules to integrate with hardware Eurorack equipment. * MIDI input and output, including MIDI clock sync, and MIDI learn function. Automate and control your patch, or control other software and hardware instruments with powerful sequencer modules. * Ableton Link support to synchronise with other music software on the same device or over network. * iCloud support to sync patches between iOS and macOS app versions. * Visit patchstorage.com/platform/mirack for inspiration and to share your patches.
Screenshots
Verdict
The clearest difference is price: Klankwelle at Free against miRack's $14.99. Klankwelle also leads on in-app purchases (none vs 5) and iOS requirement (10.0 vs 14.0). miRack's advantage is update cadence (weekly vs every 2 months) and ratings volume (682 vs 37). On rating, review sentiment, ads and device support 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
Klankwelle is free to download; miRack costs $14.99 up front. miRack sells 5 one-off in-app purchases. Klankwelle asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Klankwelle against 4.8 for miRack. That said, the two scores are not equally well evidenced: miRack has 682 ratings behind it against 37, so its average is the more settled of the two. Written reviews are what separate them: 91% of Klankwelle's written reviews are positive against 86% of miRack's.
Klankwelle ships an update every 2 months, miRack weekly. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.
| Parameter | Klankwelle | miRack |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 4.7 (37 ratings) | 4.8 (682 ratings) — better |
| Positive reviews | 90.9% of reviews — better | 85.9% of reviews |
| Number of ratings | 37 | 682 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #92 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 10.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 17 MB | 359 MB |
| Age rating | 4+ | 4+ |
| Developer | Greg Okopal | MIFKI PTY LTD |
Customer experience
Klankwelle
miRack
Bugs and requests
Klankwelle
Not enough reviews yet to summarise bugs or requests.
miRack
Reported bugs
3 issues- Knob controls sometimes become unresponsive
- Saving and loading patches can be unreliable
- Compatibility issues with older iPad models
Requested features
5 requests- Add polyphonic support
- Implement undo/redo functionality
- Integrate with popular DAWs and audio apps
- Provide more comprehensive module library
- Add preset management and sharing options
In-app purchases
Klankwelle
No in-app purchases
miRack
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
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- AUv3 Hosting Modules$4.99
- Controller Module$4.99









