# Extended Violin Technique vs DSE MistakeBook

The clearest difference is update cadence: DSE MistakeBook at every 2 weeks against Extended Violin Technique's every 40 months. Extended Violin Technique's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Extended Violin Technique ships an update every 40 months, DSE MistakeBook every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Extended Violin Technique | DSE MistakeBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/extended-violin-technique/id1566840655/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 154 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Apps Resource Centre, Hong Kong Baptist University](https://appshunter.io/developer/1375410542) | [Yin Man Cheung](https://appshunter.io/developer/6799562449) |

## What reviewers say

### Extended Violin Technique

[App page](https://appshunter.io/ios/app/extended-violin-technique/id1566840655)

Explore a vast collection of extended violin techniques with definitions, notation examples, and videos. This app aids students in preparing difficult pieces and composers in discovering new violin sounds. It also features a section for composers to share their work.

**Highlights:** Extended violin technique explanations, Notational examples, Demonstrative videos, Searchable content, Composer music submission section

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

**In-app purchases:** none


### DSE MistakeBook

[App page](https://appshunter.io/ios/app/dse-mistakebook/id6799562447)

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

**In-app purchases:** none


## Frequently asked questions

### Is Extended Violin Technique free?

Extended Violin Technique is free to download, with no in-app purchases.

### Is DSE MistakeBook free?

DSE MistakeBook is free to download, with no in-app purchases.

### Do Extended Violin Technique or DSE MistakeBook have ads?

Neither Extended Violin Technique nor DSE MistakeBook shows ads.

### Which is updated more often, Extended Violin Technique or DSE MistakeBook?

Extended Violin Technique ships an update every 40 months, and DSE MistakeBook every 2 weeks. Most recently, Extended Violin Technique was updated on November 3, 2026 and DSE MistakeBook on October 31, 2026.

---

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