A vs Midi Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A
Easily generate a tuning tone with a single tap. Enhance convenience by setting up Siri Shortcuts for quick access, even adding them to your Home Screen or widgets. Adjust the frequency to your needs and enjoy a fuss-free tuning experience.
- Single-tap tone generation
- Adjustable frequency (435–445 Hz)
- Siri Shortcut integration
- Home Screen and widget shortcuts
- iPad Slide Over compatibility
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A–440: Pro Tuner Tuning Fork puts an A in your ear. The rest is up to you. One tap is all it takes. A–440: Pro Tuner Tuning Fork gives you - ease of use - confidence - reliability - flexibility - customization - Siri integration "If you know how to tune your instrument, this should be all you need." A 14-day Trial is available. It is activated at no-cost and obligation-free. After the trial expires the sounding of an A is disabled until a license is purchased. Download A–440: Pro Tuner Tuning Fork now and experience the ease and simplicity of tuning.
Midi Studio
This app acts as a modular MIDI control surface, allowing users to remotely control software and hardware via Wi-Fi or USB. It offers various touch controls like faders, knobs, and XY pads for music production and studio setups.
- Modular MIDI control surface
- Wi-Fi and USB connectivity
- Faders, knobs, buttons, XY pads
- Customizable layouts (Pro version)
- CoreMidi message support
- Velocity sensitive keys
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Warning: This app is a Midi controller and does not include a sound engine or synth. -----------REVIEWS----------- Midi Studio is a fantastic midi controller app that do not provide a sound but to control the sound in the studio. It's pretty unique and should be the one stand out from the crowd. - Best10Apps.com! #Midi Studio is rated as a killer app by Apps4iDevices.com! #Midi Studio was rated as App-of-the-Week by iDesignSound.com! -----------ABOUT----------- Midi Studio is a modular MIDI control surface for iPhone / iPod Touch / iPad. It supports sending CoreMidi messages over a Wi-Fi network using the UDP protocol for sending and receiving MIDI messages. The application allows to remote control and receive feedback from software and hardware that implement the MIDI protocols such as Apple Logic Pro/Express, Ableton Live, Max for Live, Cubase, Pro Tools, FL Loops and many others. The interface provides a number of different touch controls to send and receive messages: Faders / Rotary controls / Encoder controls / Push buttons / Toggle buttons / XY pads / LEDs / Labels, etc. !!!WARNING, by default app not include "Ability to create custom layouts". This feature available only through built-purchase or you can buy a "Midi Studio Pro" version. Midi Studio Features: -[Ability to create custom layouts] -[CoreMidi] -[WI-FI] -[USB adapters, like "Apple camera connection kit", etc], with original Apple's pc to iPhone/iPod cable it will not work! -[True Velocity Sensitive ] (with the force of impact) -[Modulation] -[Drums] -[Faders] -[Knobs] -[Buttons] -[Touch pads] -[Two Keyboards] -[Different Keys Size] -[Custom Key Scale] - (Like: Major, Minor, Klezmer, etc...) iPAD VERSION INCLUDE: -Keyboard Layout - free -Drums Layouts - free -Drums 4x4 - free -All XY Pads - free -Live Pad - free -Mixer - free -Ability to create custom layouts - Built-in purchase only -CD PLAYER layout - Built-in purchase only -VINYL PLAYER layout - Built-in purchase only -DJ MIXER layout - Built-in purchase only -Surface and Transport Layouts (DAW CONTROL) - Built-in purchase only -Live Drums Layout - Built-in purchase only Transport and Surface Layouts works with: -Generic mode -Logic Pro -Live -Cubase/Nuendo -HUI / PRO TOOLS -Reason -Reaper -FL Studio iPHONE/iPOD VERSION INCLUDE: -Keyboard Layout - free -Drums Layouts - free -XY Pads - free -Mixer - free -Ability to create custom layouts - Built-in purchase only -Live Drums Layout - Built-in purchase only For more info visit: www.wiksnet.com
Screenshots
Verdict
The clearest difference is price: A at Free against Midi Studio's $1.99. A also leads on rating (4.4 vs 4.0). Midi Studio's advantage is iOS requirement (5.1.1 vs 17.5). On review sentiment, ratings volume, update cadence and ads 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
A is free to download; Midi Studio costs $1.99 up front. A sells 4 one-off in-app purchases and Midi Studio sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
A holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 185 and 65 respectively. Written reviews complicate that: 61% of A's written reviews are positive against 64% of Midi Studio's, so the app with the better star average is not the one people write more warmly about.
A ships an update every 6 weeks, Midi Studio every 5 weeks. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | A | Midi Studio |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.4 (185 ratings) — better | 4.0 (65 ratings) |
| Positive reviews | 60.9% of reviews | 64.4% of reviews — better |
| Number of ratings | 185 — better | 65 |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 5.1.1 — better |
| Further details — not scored | ||
| Size | 4 MB | 500 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Richardson | VITALIY TARASYUK |
Customer experience
A
Midi Studio
Bugs and requests
A
Not enough reviews yet to summarise bugs or requests.
Midi Studio
Reported bugs
12 issues- App crashes on startup or during use
- MIDI keyboard and drum pads frequently break or become unresponsive
- Dropped MIDI events during performance
- Connectivity issues between iOS devices
- In-app purchase store causes crashes
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- Developer website shows revoked certificate
- Latency issues on WiFi connections
- UI quirks when editing layouts
- Device slowdown when app is running
- Inconsistent drum pad transposition (two semitones instead of one)
- Crashes on specific iOS versions (iOS 11.3.1 reported)
- iPhone performance issues (crashes on iPhone, works on iPad)
Requested features
12 requests- Bluetooth MIDI support as alternative to WiFi
- MIDI learn function for easier configuration
- IAA (Inter-App Audio) or Audiobus support
- Editable drum pad layouts with half-step intervals
- Configuration profiles for switching between instruments
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- LED feedback on fader positions
- Full-screen optimization for larger devices
- Comprehensive user manual and tutorials
- Standalone sound generation capability
- USB connection option for lower latency
- System message options
- Preset configurations for popular DAWs included by default
In-app purchases
A
- 14-day TrialFree
- A–440 Standard$2.99
- Upgrade to A–440 Premium$2.99
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- A–440 Premium$4.99
Midi Studio
- Live Drums Layout$0.99
- CD Player Layout$0.99
- Vinyl Player Layout$0.99
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- Buy ready-made layout$1.99
- Buy Control$1.99
- DJ Mixer Layout$1.99
- Buy Gold Layout$4.99
- Daw Control Layouts$4.99
- Buy Premium Layout$9.99
- Create Custom Layouts$14.99









