Comparison

Scratch Disc vs Bluetooth Midi Keyboard

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

Head to head
About

Scratch Disc

Create unique rhythms and sound effects by scratching audio. Load over 200 sounds or your own music onto up to 12 virtual turntables. Record your performances directly into other music creation apps.

Highlights
  • Up to 12 turntables simultaneously
  • Over 200 included sounds
  • Scratch with your iTunes library
  • AudioBus and Inter-App Audio support
  • Record custom sounds
  • Paste sounds from other apps
Features
Read full description

12 TURNTABLES AND A MICROPHONE ! Take scratching performances to the extreme with superhuman turntablism. Scratch Disc provides up to 12 turntable slots to load any sound imaginable and then scratch scratch scratch it to make rhythms and effects. FEATURE LIST: • Up to 12 spinning discs at once. • Over 200 sounds to scratch with. • Scratch with songs from your iTunes music library. • AudioBus and Inter-App Audio let you record your performances directly into other apps such as GarageBand, Cubasis and Loopy. WITH IN-APP PURCHASE: • More sounds and projects. • Record yourself or other sounds and scratch with them. • Paste sounds from other apps.

About

Bluetooth Midi Keyboard

Transform your iPhone or iPad into a wireless MIDI keyboard. Control your favorite music software and hardware from your device using Bluetooth Low Energy. Offers customizable note settings and velocity sensitivity for expressive playing.

Highlights
  • Wireless MIDI keyboard
  • Bluetooth Low Energy MIDI
  • Selectable base note
  • Selectable number of notes
  • Velocity sensitive
Read full description

Bluetooth Midi Keyboard turns your iOS and iPadOS devices in a wireless keyboard.  Play your iOS, iPadOS, desktop or hardware BLE Midi DAWs and instruments from your iPhone and iPad. -Selectable base note. -Selectable number of notes. -Velocity sensitive. -Bluetooth Low Energy Midi. How does it works: Push connect button and in the opened view turn on the switch button. This will make your device discoverable by your Bluetooth MIDI Host, connect it from it and you will can play your MIDI Host from B.M.K.. If your MIDI Host don't support Bluetooth MIDI there are some free apps on the market that creates virtual Bluetooth MIDI Ports. B.M.K.. uses MIDI channel 1. Demo video on the developer's page.

Screenshots

Scratch Disc4 screens
Bluetooth Midi Keyboard2 screens

Verdict

The call

The clearest difference is in-app purchases: Bluetooth Midi Keyboard at none against Scratch Disc's 1. Scratch Disc's advantage is update cadence (every 3 weeks vs every 33 months) and rating (3.3 vs 3.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Scratch Disc sells 1 one-off in-app purchase. Bluetooth Midi Keyboard asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Scratch Disc holds the better App Store score, 3.3 against 3.0. Both are backed by a comparable volume of ratings — 16 and 4 respectively. Written reviews point the same way: 68% of Scratch Disc's written reviews are positive against 67% of Bluetooth Midi Keyboard's.

UpkeepUpdate frequency

Scratch Disc ships an update every 3 weeks, Bluetooth Midi Keyboard every 33 months. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 4 level
Scratch Disc versus Bluetooth Midi Keyboard: the parameters behind the verdict, then further details
ParameterScratch DiscBluetooth Midi Keyboard
PriceFreeFree
Rating3.3 (16 ratings) — better3.0 (4 ratings)
Positive reviews68.2% of reviews — better66.7% of reviews
Number of ratings16 — better4
Update frequencyEvery 3 weeks — betterEvery 33 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS7.1 — better18.6
Further details — not scored
Size37 MB6 MB
Age rating4+4+
DeveloperKristin Graffagninopablo lopez

Customer experience

Scratch Disc

All ratings16 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews22 reviews
Positive68.2%
Neutral4.5%
Negative27.3%

Bluetooth Midi Keyboard

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

1 purchases

Scratch Disc

One-time1
  • Unlock Premium Features$3.99
None

Bluetooth Midi Keyboard

No in-app purchases

Questions

Is Scratch Disc free?
Scratch Disc is free to download, with in-app purchases available.
Is Bluetooth Midi Keyboard free?
Bluetooth Midi Keyboard is free to download, with no in-app purchases.
Which has better reviews, Scratch Disc or Bluetooth Midi Keyboard?
Scratch Disc is rated higher. Scratch Disc averages 3.3 out of 5 from 16 ratings, while Bluetooth Midi Keyboard averages 3.0 from 4 ratings.
Do Scratch Disc or Bluetooth Midi Keyboard have ads?
Neither Scratch Disc nor Bluetooth Midi Keyboard shows ads.
Which is updated more often, Scratch Disc or Bluetooth Midi Keyboard?
Scratch Disc ships an update every 3 weeks, and Bluetooth Midi Keyboard every 33 months. Most recently, Scratch Disc was updated on June 1, 2026 and Bluetooth Midi Keyboard on September 19, 2026.

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