# Zero Authenticator vs Kash

The clearest difference is in-app purchases: Zero Authenticator at none against Kash's 2. Zero Authenticator also leads on iOS requirement (14.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Kash sells 2 in-app purchases, starting at $5.99 per 7 days. Zero Authenticator asks for nothing beyond the download.

## The numbers

| Metric | Zero Authenticator | Kash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (11 ratings)](https://appshunter.io/ios/app/kash-find-paper-money-value/id6745428823/reviews)** |
| Number of ratings | — | **11** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 39 MB | 28 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Blackrock Software s.r.o.](https://appshunter.io/developer/1684577323) | [Zouhair Rouika](https://appshunter.io/developer/1812195644) |

## What reviewers say

### Zero Authenticator

[App page](https://appshunter.io/ios/app/zero-authenticator/id6740334978)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kash

[App page](https://appshunter.io/ios/app/kash-find-paper-money-value/id6745428823)

Effortlessly identify and value paper money from over 100 countries using advanced AI. Scan bills or upload images to get precise details, historical context, and rarity indicators for your currency collection.

**Highlights:** Identify paper money from 100+ countries, Find paper money value with pricing and rarity, Scan bills or upload images, Discover dollar bill value for U.S. banknotes, Save scan history and build a digital collection, Learn historical context of notes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is Zero Authenticator free?

Zero Authenticator is free to download, with no in-app purchases.

### Is Kash free?

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

### Do Zero Authenticator or Kash have ads?

Neither Zero Authenticator nor Kash 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.*