Comparison

ZirkPad vs Simple MIDI

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

Head to head

Open Source MIDI Player

Free

🎵 Music

★ 3.88 ratingsView app →

About

ZirkPad

Features

Read full description

ZirkPad is a live touch-based controller for Zirkonium3, the audio spatialization composition environment from the ZKM | Hertzlab, available at https://zkm.de/zirkonium/ This app offers following features: * intuitive position and diffusion control of multiple sound sources via a multi-touch interface * realtime visualisation of audio sent from sound sources and to loudspeakers * simultaneous control of groups of sound sources with various combination of finger gestures ZirkPad sends and receives UDP networking messages using the Open Sound Control (OSC) protocol. It is designed to work with Zirkonium3, but will work with any additional software which can send or receive OSC.

About

Simple MIDI

This open-source application allows users to play MIDI files on their iOS devices. It's built using Swift Playgrounds and AudioKit, offering a learning opportunity for aspiring developers.

Highlights

Play MIDI files
Open source code available
Compatible with Swift Playgrounds
Built with AudioKit
Learn to code on iPad

Features

Read full description

An open source MIDI player for iOS, built with the Swift Playgrounds app Features: - Play your favorite MIDI files - Source code available on GitHub for learning - emurray2 / SimpleMIDI - Compatible with Swift Playgrounds iOS - learn to code on your iPad! - Built with open-source music frameworks (AudioKit)

Screenshots

Simple MIDI1 screens

Verdict

The call

The clearest difference is update cadence: Simple MIDI at every 6 days against ZirkPad's every 51 months. Simple MIDI also leads on device support (3 vs 1). ZirkPad's advantage is iOS requirement (9.0 vs 14.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ZirkPad ships an update every 51 months, Simple MIDI every 6 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level

ZirkPad versus Simple MIDI: the parameters behind the verdict, then further details
Parameter	ZirkPad	Simple MIDI
Price	Free	Free
Rating	—	3.8 (8 ratings) — better
Positive reviews	—	50.0% of reviews
Number of ratings	—	8 — better
Update frequency	Every 51 months	Every 6 days — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPad	iPhone, iPad, iPod — better
Requires iOS	9.0 — better	14.0
Further details — not scored
Size	10 MB	56 MB
Age rating	4+	4+
Developer	ZKM \| Zentrum fuer Kunst und Medientechnologie Karlsruhe	Evan Murray

In-app purchases

None

ZirkPad

No in-app purchases

None

Simple MIDI

No in-app purchases

Questions

Is ZirkPad free?

ZirkPad is free to download, with no in-app purchases.

Is Simple MIDI free?

Simple MIDI is free to download, with no in-app purchases.

Do ZirkPad or Simple MIDI have ads?

Neither ZirkPad nor Simple MIDI shows ads.

Which is updated more often, ZirkPad or Simple MIDI?

ZirkPad ships an update every 51 months, and Simple MIDI every 6 days. Most recently, ZirkPad was updated on October 26, 2026 and Simple MIDI on October 24, 2026.