Cortex Cloud vs Number System Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cortex Cloud
Manage your Nano Cortex and access cloud-based content with an elegant interface. Browse and download presets, neural captures, and more. Control your device's profile and privacy settings.
- Control Nano Cortex
- Access Cortex Cloud
- Browse users and presets
- Download content
- Manage profile and privacy
- Share content
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Control your Nano Cortex and access Cortex Cloud through an intuitive and elegant interface. Browse users, Presets, Neural Captures, and more. Download items to have them display instantly on your device. You can also manage your profile and change the privacy settings for any files you have uploaded to Cortex Cloud. Benefits: Access deeper customization options for your Nano Cortex. Seamlessly download Presets, Neural Captures, and other items to your Quad Cortex or Nano Cortex. Manage your profile and the items you have uploaded to Cortex Cloud. Discover and follow users. Share Presets and Neural Captures with your friends. Cortex Cloud requires a free Neural DSP account and a registered Quad Cortex or Nano Cortex. Cortex Cloud is not required to use the Quad Cortex or Nano Cortex but provides deeper customization options for the Nano Cortex.
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.
- Interactive learning modules
- Chord reading and identification
- Instant transposition
- Ear training exercises
- Visual chord shapes
- Circle of 4ths & 5ths reference
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Number System Trainer teaches you the Nashville Number System — the method worship musicians and session players use to learn songs fast, transpose on the fly, and communicate with any musician in any key. Whether you're a beginner who only knows 3 chords or an experienced worship leader, this app meets you where you are. 6 INTERACTIVE MODULES • Learn — A 5-step intro to how the number system works • Read Charts — 4 levels from basic chords to slash chords • Transpose — Move full progressions to any key instantly • Ear Training — 3 levels, identify chords just by listening • Play Along — See piano and guitar shapes in every key, with capo tips built in • Circle of 4ths & 5ths — Tap any key to see all 7 chords No login required. Works instantly.
Screenshots
Verdict
The clearest difference is review sentiment: Number System Trainer at 100% against Cortex Cloud's 29%. Number System Trainer also leads on rating (5.0 vs 3.4) and update cadence (weekly vs every 6 weeks). Cortex Cloud's advantage is monetization model (free vs free with in-app purchases) and ratings volume (72 vs 10). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Number System Trainer holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Cortex Cloud has 72 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 29% of Cortex Cloud's written reviews are positive against 100% of Number System Trainer's.
Cortex Cloud ships an update every 6 weeks, Number System Trainer weekly. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.
| Parameter | Cortex Cloud | Number System Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (72 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 28.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 72 — better | 10 |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 100 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Neural DSP | Brandon Oaks |
Customer experience
Cortex Cloud
Number System Trainer
In-app purchases
Cortex Cloud
No in-app purchases
Number System Trainer
No in-app purchases
Questions
Is Cortex Cloud free?
Is Number System Trainer free?
Which has better reviews, Cortex Cloud or Number System Trainer?
Do Cortex Cloud or Number System Trainer have ads?
Which is updated more often, Cortex Cloud or Number System Trainer?
Other comparisons
