Comparison

MIDI Check vs Cality

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

Head to head
About

MIDI Check

Diagnose and troubleshoot MIDI connections on your devices. View active connections, monitor incoming messages, and filter unwanted data. Record MIDI messages in the background with a clear, intuitive interface.

Highlights
  • Detect active MIDI connections
  • View incoming MIDI messages
  • Send test MIDI notes and control messages
  • Filter MIDI channels and messages
  • Filter MIDI System Exclusive messages
  • Record MIDI messages in background mode
Features
Read full description

*Diagnose The Problem & Find the Solution* Current Features: + See/detect, hardware/virtual active MIDI connections. + See all incoming messages. + Send test notes on/off and control messages. + MIDI Channel filter: Eliminate messages comes from unwanted MIDI channels. + MIDI Message filter: Eliminate unwanted messages (e.g. Note on, Note off, Pitch wheel etc.) + MIDI System Exclusive filter: Eliminate MIDI Clock and many other unwanted MIDI messages. + MIDI Delta-Time Added: See the time spent between messages + Record Incoming MIDI messages in background mode + 100% vectoriel cristal clear gorgeous user interface. + Slide the glass through the face, activate the desired filter with a gesture. **NOTE** Yamaha Bluetooth MD-BT01 users -> According to Yamaha user manual; all MIDI related application should be closed before bluetooth midi connection. Run the MIDI Check after connection established. If not you'll not be able to see the Yamaha midi connection on the app. This is not an application's issue. Because Yamaha use own BT protocol. Upcoming Features: - Music keyboard improvement. - Custom preset message send possibility.

About

Cality

This app is a creative MIDI processor that allows for rhythmic enhancement, controlled chaos, and the addition of new textures. It offers features like pitch quantization, probability gates, and a cloud module for generating additional notes.

Highlights
  • Rhythmic enhancement
  • Controlled chaos
  • Pitch quantization
  • Probability gate
  • Cloud module for additional notes
  • Midi controllable note quantizer
  • Swing and accents
Features
Read full description

Cality is a creative midi processor allowing subtle rhythmic enhancement, controlled chaos and everything in between. Add swing or accents, quantise the pitch of notes, use a probability gate or use the cloud module to add addition notes all under midi control The cloud section takes techniques common in granular synthesis and brings them to the realm of midi notes. It adds additional notes to the ones you are playing. This can be a simple rhythmic accompaniment or it can bring new textures from your synths by generating a cloud of tiny notes almost entering the realms of black midi. The note sections gives a fully automatable/midi controllable note quantiser with a range of scales, a transposer and the ability to constrain to simple chords as well The tempo section allows the addition of swing and accents to incoming midi notes as well as providing a probability gate Cality is great for bringing life to simple midi loops or patterns or for taking you deep into creative realms.

Screenshots

MIDI Check4 screens
Cality4 screens

Verdict

The call

The clearest difference is review sentiment: Cality at 67% against MIDI Check's 0%. Cality also leads on rating (4.4 vs 4.0) and ratings volume (17 vs 4). MIDI Check's advantage is update cadence (every 4 days vs every 4 weeks) and price ($1.99 vs $6.99). On ads, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

MIDI Check costs $1.99 and Cality $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Cality holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 4 and 17 respectively. Written reviews point the same way: 0% of MIDI Check's written reviews are positive against 67% of Cality's.

UpkeepUpdate frequency

MIDI Check ships an update every 4 days, Cality every 4 weeks. Both last shipped on November 2, 2026.

Scorecard6 real differences · 4 level
MIDI Check versus Cality: the parameters behind the verdict, then further details
ParameterMIDI CheckCality
Price$1.99 — better$6.99
Rating4.0 (4 ratings)4.4 (17 ratings) — better
Positive reviews0.0% of reviews66.7% of reviews — better
Number of ratings417 — better
Update frequencyEvery 4 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.3 — better15.6
Further details — not scored
Size35 MB1 MB
Age rating4+4+
DeveloperDejaWorks LTDPagefall limited

Customer experience

MIDI Check

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Cality

All ratings17 ratings
Positive76.5%
Neutral17.6%
Negative5.9%
Written reviews12 reviews
Positive66.7%
Neutral25.0%
Negative8.3%

In-app purchases

None

MIDI Check

No in-app purchases

None

Cality

No in-app purchases

Questions

Is MIDI Check free?
MIDI Check costs $1.99, with no in-app purchases.
Is Cality free?
Cality costs $6.99, with no in-app purchases.
Which has better reviews, MIDI Check or Cality?
Cality is rated higher. MIDI Check averages 4.0 out of 5 from 4 ratings, while Cality averages 4.4 from 17 ratings.
Do MIDI Check or Cality have ads?
Neither MIDI Check nor Cality shows ads.
Which is updated more often, MIDI Check or Cality?
MIDI Check ships an update every 4 days, and Cality every 4 weeks. Most recently, MIDI Check was updated on November 2, 2026 and Cality on November 2, 2026.

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