# Quick Scanner Pro PDF Document vs Guitar Chord Vault

The clearest difference is update cadence: Quick Scanner Pro PDF Document at every 3 weeks against Guitar Chord Vault's every 4 months. Quick Scanner Pro PDF Document also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Quick Scanner Pro PDF Document sells 3 in-app purchases, starting at $6.99 per month and Guitar Chord Vault sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Quick Scanner Pro PDF Document ships an update every 3 weeks, Guitar Chord Vault every 4 months. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Quick Scanner Pro PDF Document | Guitar Chord Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/guitar-chord-vault/id6747797689/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | — | Freemium |
| Size | 53 MB | 24 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MULTITECH SYSTEMS BILGI ISLEM SANAYI VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/1328783122) | [丽俨 龚](https://appshunter.io/developer/1816613061) |

## What reviewers say

### Quick Scanner Pro PDF Document

[App page](https://appshunter.io/ios/app/quick-scanner-pro-pdf-document/id1526787143)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $6.99 | per month |
| Quarterly Premium | $18.99 | per 3 months |
| Yearly Premium | $39.99 | per year |


### Guitar Chord Vault

[App page](https://appshunter.io/ios/app/guitar-chord-vault/id6747797689)

Access over 3,000 guitar chords with detailed diagrams, emotional analysis, and theoretical insights. This app helps beginners learn, songwriters find inspiration, and advanced players explore complex voicings.

**Highlights:** 3,000+ HD chord diagrams, Emotional characteristics and usage scenarios, Quick search for abbreviations, Complete chord degree relationships, Intelligent chord generator, Fretboard visualization

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $0.99 | per 7 days |
| Monthly | $2.99 | per month |
| Annual | $24.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Quick Scanner Pro PDF Document free?

Quick Scanner Pro PDF Document is free to download, with in-app purchases available.

### Is Guitar Chord Vault free?

Guitar Chord Vault is free to download, with in-app purchases available.

### Do Quick Scanner Pro PDF Document or Guitar Chord Vault have ads?

Neither Quick Scanner Pro PDF Document nor Guitar Chord Vault shows ads.

### Which is updated more often, Quick Scanner Pro PDF Document or Guitar Chord Vault?

Quick Scanner Pro PDF Document ships an update every 3 weeks, and Guitar Chord Vault every 4 months. Most recently, Quick Scanner Pro PDF Document was updated on October 23, 2026 and Guitar Chord Vault on October 28, 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.*