# Sarotis vs DERM

The clearest difference is in-app purchases: DERM at none against Sarotis's 4. Sarotis's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Sarotis sells 4 in-app purchases, starting at $1.99 per month. DERM asks for nothing beyond the download.

Sarotis ships an update every 4 weeks, DERM every 2 months. The most recent releases landed on September 11, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Sarotis | DERM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/sarotis-nfc-tools-reader/id1494494958/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Freemium | — |
| Size | 8 MB | 36 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Hauss](https://appshunter.io/developer/1399987469) | [EY IFI SECURITY](https://appshunter.io/developer/1692936703) |

## What reviewers say

### Sarotis

[App page](https://appshunter.io/ios/app/sarotis-nfc-tools-reader/id1494494958)

Easily read, write, and manage NFC tags. Save tag data, import/export information, and clear or lock tags. Supports various data types like contacts, web links, and Wi-Fi configurations.

**Highlights:** Write/Read NFC Tags (NDEF Format), Save and Import NFC Tag Data, Export Data to CSV, Clear and Lock NFC Tags, Text-to-Speech for Read Data, Create vCards, Web Links, Wi-Fi, and more

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sarotis PRO – Monthly Subscription | $1.99 | per month |
| Sarotis Pro - yearly subscription | $11.99 | per year |
| Sarotis PRO (All Features) | $7.99 | one-time |
| Sarotis PRO Lifetime | $24.99 | one-time |


### DERM

[App page](https://appshunter.io/ios/app/derm-vat-module/id6450427033)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sarotis free?

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

### Is DERM free?

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

### Do Sarotis or DERM have ads?

Neither Sarotis nor DERM shows ads.

### Which is updated more often, Sarotis or DERM?

Sarotis ships an update every 4 weeks, and DERM every 2 months. Most recently, Sarotis was updated on September 11, 2026 and DERM on September 18, 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.*