Sound Byte Cart Machine App vs MTI Player
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sound Byte Cart Machine App
This app provides a digital cart machine for playing sound clips on mobile devices. It's ideal for live events like theater, sports, or DJing, allowing easy management and playback of audio files without needing a computer.
- Digital cart machine for audio playback
- Manage and control sound files
- Ideal for live events and productions
- Customizable cart appearance and behavior
- Adjustable playback settings (fade, volume, rate)
- Looping and sequential playback options
- Logging of played carts
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Looking for a way to play sound clips at a theater or sporting events, as a DJ, or at other events? Don’t want to lug a computer around with you? With Sound Byte, the so-called "cart machine" used at radio stations in the past is now available for the iPad, iPhone and iPod Touch. Whether you're programming a radio show or amateur podcast, adding spice to the commentary at a local sporting event, controlling sound effects for a theater production, or simply organizing your personal playlist, Sound Byte lets you manage and control playback of your audio files. Sound Byte is perfect for: Radio, podcast and TV productions - have ads, announcements, songs and sound effects at your fingertips. Theater Productions - play any sound effect on cue. Sports Events - jazz up the commentary for your home team with sound effects each time they score. Sound Byte supports up to 20 racks of carts, or up to 1500 recordings total (420 on the iPhone/iPod). You can set the number of racks in use, so you don’t have to deal with empty, unused racks. Using Sound Byte is easy - just tap a cart, and playback of the audio file begins. You can set the title of each cart, as well as the background color. Optionally, you can have the app automatically change cart colors based on their state: empty, loaded, playing, and already played. Carts can also be numbered if you wish, and you can mark carts with a bright red border to make them easier to find, to play next. Fade in and out times can be set, as well as the cut in and cut out times, the playback volume, stereo pan, and rate. The volume of carts can be set while they are playing, and you can set the volume up to 200%, in case you have some recordings that are at too low of a level for normal playback. Carts can be set to loop a specified number of times - great for sound effects! Carts can be set to flash a user configured number of seconds before they finish playing, so you can get ready to play the next one. Interactions between carts can also be controlled - touching a cart to start it can optionally cause currently playing carts to stop playback or fade out. You can even set carts up to play sequentially, so once one ends, the next one starts playing. Carts that have been played can be marked as such, as well as disabled, if you only want to play a cart once. You can also log the name and time of played carts to a text file that you can copy back to your computer to view. This log can also be viewed from within the app. Several sizes of carts are supported, so you can display fewer larger carts to make playback control even easier. Sound Byte plays sound files from your Music Library. Note that sound files stored on iCloud cannot be played, they must be stored on your device. Sound Byte also plays sound files that you have installed in the Documents folder, which you can access via the iTunes app. Note that the screenshots are for illustration only, so you can see how the app works. Sound Byte does not come with any sound files, you'll need to supply your own. Please see http://www.blackcatsystems.com/ipad/iPad_SoundByte_FAQ.html for a full description of how to use the app. Buy your copy of Sound Byte now, and get complete control over playback of your sound effects and other files.
MTI Player
This app allows users to play show scores using performance accompaniment recordings. It provides essential resources for musical theatre productions, offering immediate assistance for any emergencies during a show.
- Play show scores
- Performance accompaniment recordings
- Emergency production support
- Proprietary playback technology
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The MTI Player is Music Theatre International’s proprietary app designed to play a show’s score using the Performance Accompaniment Recording resource. For emergency help during your production, please contact 1-888-340-3505 for immediate assistance.
Screenshots
Verdict
The clearest difference is review sentiment: Sound Byte Cart Machine App at 64% against MTI Player's 14%. Sound Byte Cart Machine App also leads on rating (4.1 vs 2.6) and iOS requirement (9.0 vs 15.0). MTI Player's advantage is price (Free vs $5.99). On ratings volume, update cadence, 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
MTI Player is free to download; Sound Byte Cart Machine App costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sound Byte Cart Machine App holds the better App Store score, 4.1 against 2.6. Both are backed by a comparable volume of ratings — 158 and 89 respectively. Written reviews point the same way: 64% of Sound Byte Cart Machine App's written reviews are positive against 14% of MTI Player's.
Sound Byte Cart Machine App ships an update every 3 months, MTI Player every 6 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | Sound Byte Cart Machine App | MTI Player |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.1 (158 ratings) — better | 2.6 (89 ratings) |
| Positive reviews | 64.4% of reviews — better | 14.3% of reviews |
| Number of ratings | 158 — better | 89 |
| Update frequency | Every 3 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Black Cat Systems | Music Theatre International |
Customer experience
Sound Byte Cart Machine App
MTI Player
Bugs and requests
Sound Byte Cart Machine App
Reported bugs
18 issues- App crashes when accessing music library (iOS 13+)
- Crashes when tapping Setup or Music Library on iPhone 13
- Blank screen display on iOS 26.1
- Cart setup crashes after recent updates
- Crashes when loading song list
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- Sound files not displaying in alphabetical order
- App hangs and becomes unresponsive
- Crashes on iPad when importing tracks
- Sound distortion with cart rate feature
- Music not playing on iPad despite files being present
- App crashes when adding new music
- Crashes on iOS 13.6.1 and later versions
- Sound fades in and out unexpectedly
- App freezes during live use
- Performance lag after linking multiple buttons
- Cart colors not persisting after selection
- Files disappearing from cart buttons
- Incompatibility with Catalina macOS update
Requested features
22 requests- Mac OS version
- Exportable rack setups for multiple devices
- Alphabetical sorting of music library
- Backup and restore functionality
- Cloud sync across devices (iCloud)
Show 17 moreShow fewer
- Dropbox and Google Drive integration
- Split-screen iPad support
- Interapp Audio (IAA) and Audiobus support
- Larger stop button to prevent accidental triggers
- Volume slider control
- Pause, rewind, and fast-forward controls
- Ability to duplicate entire carts
- Default cart color settings
- Improved color picker (grid instead of wheel)
- Direct iPad file importing without PC/Mac
- Support for .wav files
- Ability to load ringtones
- Sequential track triggering (one track starts next)
- Improved cart rate feature quality
- Adaptive resolution for modern iPhones
- Larger buttons for iPhone version
- Better documentation and updated FAQ
MTI Player
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sound Byte Cart Machine App
No in-app purchases
MTI Player
No in-app purchases
Questions
Is Sound Byte Cart Machine App free?
Is MTI Player free?
Which has better reviews, Sound Byte Cart Machine App or MTI Player?
Do Sound Byte Cart Machine App or MTI Player have ads?
Which is updated more often, Sound Byte Cart Machine App or MTI Player?
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