# DermaDuell vs NONSTOP CARDS

The clearest difference is review sentiment: NONSTOP CARDS at 100% against DermaDuell's 50%. DermaDuell's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DermaDuell ships an update every 4 months, NONSTOP CARDS every 3 months. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | DermaDuell | NONSTOP CARDS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 10 MB | 89 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [DocCheck AG](https://appshunter.io/developer/1785591806) | [WE ARE L&P UG (haftungsbeschränkt)](https://appshunter.io/developer/1820233860) |

## What reviewers say

### DermaDuell

[App page](https://appshunter.io/ios/app/dermaduell/id973158384)

Test your dermatology knowledge against colleagues in fast-paced quizzes. Earn points and achievements by answering questions across 12 categories. This app is exclusively for registered users of the Dermingo training platform.

**Highlights:** 12 dermatology, product knowledge, and customer advice categories, Over 1,500 unique questions, 5 question rounds per duel, 20-second time limit per question, 85 unlockable achievements, Earn reward points for in-app shop

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

**In-app purchases:** none


### NONSTOP CARDS

[App page](https://appshunter.io/ios/app/nonstop-cards/id6747201039)

This app-powered word game uses letter cards to challenge players to find words that fit given topics and start with specific letters. It offers multiple topic categories and game modes for engaging fun with friends and family.

**Highlights:** App-guided gameplay, Letter card challenges, Multiple topic categories, Two distinct game modes, Offline play after initial unlock, Regular content updates

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DermaDuell free?

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

### Is NONSTOP CARDS free?

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

### Do DermaDuell or NONSTOP CARDS have ads?

Neither DermaDuell nor NONSTOP CARDS shows ads.

### Which is updated more often, DermaDuell or NONSTOP CARDS?

DermaDuell ships an update every 4 months, and NONSTOP CARDS every 3 months. Most recently, DermaDuell was updated on October 11, 2026 and NONSTOP CARDS on October 6, 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.*