# Proof Authentication vs ChordCraft

The clearest difference is in-app purchases: Proof Authentication at none against ChordCraft's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChordCraft sells 1 one-off in-app purchase. Proof Authentication asks for nothing beyond the download.

## The numbers

| Metric | Proof Authentication | ChordCraft |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/proof-authentication/id1589988080/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 75 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Proof Authentication Corporation](https://appshunter.io/developer/1604240795) | [kou works](https://appshunter.io/developer/1871986162) |

## What reviewers say

### Proof Authentication

[App page](https://appshunter.io/ios/app/proof-authentication/id1589988080)

Verify product authenticity instantly by scanning official security marks. Ensure your purchases are genuine with rapid and accurate authentication. Look for the Proof Security Mark on select consumer goods.

**Highlights:** Instant product authentication, Scan Official Proof Security Marks, High accuracy verification, Fast results, Supports selected consumer items

**Features:** Vision Pro support

**In-app purchases:** none


### ChordCraft

[App page](https://appshunter.io/ios/app/chordcraft/id6762268918)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChordCraft Pro | $2.99 | one-time |


## Frequently asked questions

### Is Proof Authentication free?

Proof Authentication is free to download, with no in-app purchases.

### Is ChordCraft free?

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

### Do Proof Authentication or ChordCraft have ads?

Neither Proof Authentication nor ChordCraft shows ads.

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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.*