# Violin Scales Trainer vs String AI

The clearest difference is rating: Violin Scales Trainer at 5.0 against String AI's 4.2. Violin Scales Trainer also leads on in-app purchases (none vs 4) and review sentiment (100% vs 80%). String AI's advantage is device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. String AI sells 4 in-app purchases, starting at $14.99 per month. Violin Scales Trainer asks for nothing beyond the download.

Violin Scales Trainer holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 100% of Violin Scales Trainer's written reviews are positive against 80% of String AI's.

Violin Scales Trainer ships an update fortnightly, String AI every 2 weeks. Both last shipped on October 12, 2026.

## The numbers

| Metric | Violin Scales Trainer | String AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/violin-scales-trainer/id6451384511/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/string-ai-strings-practice/id6787829281/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 600 MB | 95 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bernard O'Neill](https://appshunter.io/developer/549255149) | [Youna Choi](https://appshunter.io/developer/6787829283) |

## What reviewers say

### Violin Scales Trainer

[App page](https://appshunter.io/ios/app/violin-scales-trainer/id6451384511)

Master violin scales and arpeggios with a comprehensive library, interactive practice modes, and a built-in tuner. Ideal for beginners and advanced players preparing for exams.

**Highlights:** Comprehensive scale and arpeggio library, Interactive practice modes with virtual instrument, Finger notation guides, Audio playback for scales, Built-in violin tuner, Offline access, Exam preparation tools

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### String AI

[App page](https://appshunter.io/ios/app/string-ai-strings-practice/id6787829281)

This AI-powered coach provides real-time feedback on your violin, viola, or cello practice, analyzing intonation, rhythm, tone, dynamics, and posture. It structures your sessions like a lesson, diagnoses issues, and prescribes targeted drills to improve your playing habits.

**Highlights:** Real-time note and form analysis, Five-axis scoring (intonation, rhythm, tone, dynamics, posture), Instrument-specific feedback for violin, viola, cello, Personalized practice session planning, Targeted drills for weak spots, Optional teacher integration for progress sharing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $14.99 | per month |
| Casual | $29.99 | per month |
| Standard | $44.99 | per month |
| Pro | $59.99 | per month |


## Frequently asked questions

### Is Violin Scales Trainer free?

Violin Scales Trainer is free to download, with no in-app purchases.

### Is String AI free?

String AI is free to download, with in-app purchases available.

### Which has better reviews, Violin Scales Trainer or String AI?

Violin Scales Trainer is rated higher. Violin Scales Trainer averages 5.0 out of 5 from 3 ratings, while String AI averages 4.2 from 5 ratings.

### Do Violin Scales Trainer or String AI have ads?

Neither Violin Scales Trainer nor String AI shows ads.

### Which is updated more often, Violin Scales Trainer or String AI?

Violin Scales Trainer ships an update fortnightly, and String AI every 2 weeks. Most recently, Violin Scales Trainer was updated on October 12, 2026 and String AI on October 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*