Comparison

MonitorMix vs Number System Trainer

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

Head to head
About

MonitorMix

Control individual mix, matrix, and auxiliary buses wirelessly from your mobile device. Performers can easily adjust their assigned buses without complex settings, creating personalized group adjustments for simplified control.

Highlights
  • Wireless personal mixing
  • Control MIX/MATRIX/AUX buses
  • Individual performer control
  • Simplified settings
  • Customizable group settings
  • One-fader level adjustment
Read full description

The MonitorMix application for the Yamaha Digital Mixer RIVAGE PM/DM7/DM5/DM3/CL/QL/TF series allows individual wireless MIX/MATRIX/AUX mixing from iPhone, iPad or iPod touch devices. Each performer can have convenient control over the MIX/MATRIX/AUX buses assigned to them, without having to deal with complex settings or parameters. They can also create personal Group settings for even easier adjustment: all levels on just one fader, for example.

About

Number System Trainer

Learn and master the Nashville Number System for music. This app offers interactive modules to help musicians of all levels understand chord progressions, transpose songs, and improve their ear training. It's designed for quick learning and on-the-fly musical communication.

Highlights
  • Interactive learning modules
  • Chord reading and identification
  • Instant transposition
  • Ear training exercises
  • Visual chord shapes
  • Circle of 4ths & 5ths reference
Features
Read full description

Learn the Nashville Number System by doing—not by memorizing theory. Number System Trainer helps worship musicians, guitarists, and keyboard players read number charts, change keys quickly, recognize chord movement by ear, and communicate clearly with a band. START FREE • Complete a six-step guided lesson • Practice Level 1 chart reading and ear training • Try a full song transposition • Preview Play Along and the Circle of 5ths SIX INTERACTIVE MODULES • Learn — Build the system one step at a time with a familiar progression • Read Charts — Work through four levels, from major triads to slash chords • Transpose — Move complete progressions into any of 12 keys • Ear Training — Identify diatonic, slash, and borrowed chords by sound • Play Along — Follow piano or guitar shapes, capo guidance, and timed drills • Circle of 5ths — See the seven chords in every key at a glance UNLOCK ONCE, KEEP IT One optional purchase unlocks every level, key, progression, and practice mode. There is no subscription, and Family Sharing is supported. No account or sign-in is required.

Screenshots

MonitorMix4 screens
Number System Trainer4 screens

Verdict

The call

The clearest difference is review sentiment: Number System Trainer at 100% against MonitorMix's 16%. Number System Trainer also leads on rating (5.0 vs 3.0) and update cadence (every 9 days vs every 7 months). MonitorMix's advantage is in-app purchases (none vs 1) and ratings volume (87 vs 12). On price, ads, device support and iOS requirement 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. Number System Trainer sells 1 one-off in-app purchase. MonitorMix asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Number System Trainer holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: MonitorMix has 87 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 16% of MonitorMix's written reviews are positive against 100% of Number System Trainer's.

UpkeepUpdate frequency

MonitorMix ships an update every 7 months, Number System Trainer every 9 days. The most recent releases landed on November 1, 2026 and November 10, 2026 respectively.

Scorecard6 real differences · 4 level
MonitorMix versus Number System Trainer: the parameters behind the verdict, then further details
ParameterMonitorMixNumber System Trainer
PriceFreeFree
Rating3.0 (87 ratings)5.0 (12 ratings) — better
Positive reviews16.1% of reviews100.0% of reviews — better
Number of ratings87 — better12
Update frequencyEvery 7 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS1615.0 — better
Further details — not scored
Size67 MB11 MB
Age rating4+4+
DeveloperYamaha Corporation of AmericaBrandon Oaks

Customer experience

MonitorMix

All ratings87 ratings
Positive43.7%
Neutral8.0%
Negative48.3%
Written reviews56 reviews
Positive16.1%
Neutral8.9%
Negative75.0%

Number System Trainer

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

MonitorMix

Reported bugs

65 issues
  • IP address won't recognize '0'
  • IP address deleting zeros when entering manually
  • Cannot type IP addresses manually on iPhone
  • App requests access to local network but doesn't show in settings
  • iPhone stuck synchronizing
Show 60 more
  • No audio with TF
  • App doesn't auto-rotate
  • List text difficult to read
  • Network infrastructure issues
  • Does not work with CL3
  • Does not work with CL5 or QL5
  • No audio with TF
  • App doesn't find M7CL
  • Does not work with QL5 on iPhone
  • No connection for months
  • Cannot connect TF5
  • Connectivity issues
  • New update not working on iOS
  • New update issues
  • Connection issue
  • Won't connect
  • Lock channel is TERRIBLE
  • Connectivity issues
  • Amazing app that breaks often
  • Nope!
  • Issues
  • Can not connect TF5
  • MM on iPhone
  • Won’t work iPhone/DM7
  • Was working perfectly.
  • Recent update broke connection
  • Not working on iPhone 11 Pro
  • Would be 5 stars if it still worked
  • Update broke app
  • Worked on my iPad until recent update
  • Cannot connect to TF5
  • Issues connecting in current release
  • LS9 unsupported??
  • Is Yamaha planning to fix this app?
  • Needs Fixed Update
  • No longer working
  • Happy
  • This is a game changer!!!!
  • Works great with QL5
  • Cannot connect
  • Will not connect
  • App doesn’t work on Iphone
  • Good except one key drawback
  • BIG HELPER!!!!!
  • Yamaha monitor mix
  • Not usable.
  • App doesn’t auto rotate
  • A small request...
  • Doesn't work QL5
  • Wrong FIRMWARE
  • Works awesome!
  • Will not find M7CL
  • No go with TF1 and D-Link router
  • Does Not Work - Period
  • EQ accessibility needed
  • Tech Director
  • Does not see the QL5
  • Not working on CL5 or QL5
  • No audio with TF
  • Does not work with CL3

Requested features

4 requests
  • Keep phone awake while using app
  • Control GEQ and PEQ for monitor
  • Admin control over GEQ/PEQ activation
  • Lighter text color for network list

Number System Trainer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

MonitorMix

No in-app purchases

1 purchases

Number System Trainer

One-time1
  • Full Unlock$2.99

Questions

Is MonitorMix free?
MonitorMix is free to download, with no in-app purchases.
Is Number System Trainer free?
Number System Trainer is free to download, with in-app purchases available.
Which has better reviews, MonitorMix or Number System Trainer?
Number System Trainer is rated higher. MonitorMix averages 3.0 out of 5 from 87 ratings, while Number System Trainer averages 5.0 from 12 ratings.
Do MonitorMix or Number System Trainer have ads?
Neither MonitorMix nor Number System Trainer shows ads.
Which is updated more often, MonitorMix or Number System Trainer?
MonitorMix ships an update every 7 months, and Number System Trainer every 9 days. Most recently, MonitorMix was updated on November 1, 2026 and Number System Trainer on November 10, 2026.

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