# Knife Collection vs PDC Scan

The clearest difference is price: PDC Scan at Free against Knife Collection's $1.99. Knife Collection's advantage is in-app purchases (none vs 1) and update cadence (every 3 days vs fortnightly). On ads and device support there is nothing between them.

PDC Scan is free to download; Knife Collection costs $1.99 up front. PDC Scan sells 1 one-off in-app purchase. Knife Collection asks for nothing beyond the download.

Knife Collection ships an update every 3 days, PDC Scan fortnightly. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Knife Collection | PDC Scan |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.5 (6 ratings)](https://appshunter.io/ios/app/knife-collection/id1143947197/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Paid | — |
| Size | 3 MB | 61 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Frederik Drosdzol](https://appshunter.io/developer/1143947196) | [SNC GmbH](https://appshunter.io/developer/465621476) |

## What reviewers say

### Knife Collection

[App page](https://appshunter.io/ios/app/knife-collection/id1143947197)

Organize and track your knife collection with detailed information and images. Easily manage your collection's value on the go and when meeting other enthusiasts. Features include custom notes and a variety of data points for each item.

**Highlights:** Track knife value, Add custom pictures and notes, Record detailed specifications, Organize collection on the go, Four color themes

**Features:** macOS Compatibility

**In-app purchases:** none


### PDC Scan

[App page](https://appshunter.io/ios/app/pdc-scan/id1600878093)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Version | $64.99 | one-time |


## Frequently asked questions

### Is Knife Collection free?

Knife Collection costs $1.99, with no in-app purchases.

### Is PDC Scan free?

PDC Scan is free to download, with in-app purchases available.

### Do Knife Collection or PDC Scan have ads?

Neither Knife Collection nor PDC Scan shows ads.

### Which is updated more often, Knife Collection or PDC Scan?

Knife Collection ships an update every 3 days, and PDC Scan fortnightly. Most recently, Knife Collection was updated on October 24, 2026 and PDC Scan on October 19, 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.*