# DR vs Elemental Periodic Table Quiz

The clearest difference is ads: DR at none against Elemental Periodic Table Quiz's shown. Elemental Periodic Table Quiz's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (16.4 vs 26.0). On price, in-app purchases and device support there is nothing between them.

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

DR ships an update every 2 months, Elemental Periodic Table Quiz every 3 weeks. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | DR | Elemental Periodic Table Quiz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 12 MB | 4 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Rutz Bildungsloesungen GmbH](https://appshunter.io/developer/708314115) | [Muhammad Hassan](https://appshunter.io/developer/1249312001) |

## What reviewers say

### DR

[App page](https://appshunter.io/ios/app/dr-annotate/id868029762)

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

**In-app purchases:** none


### Elemental Periodic Table Quiz

[App page](https://appshunter.io/ios/app/elemental-periodic-table-quiz/id6468251724)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DR free?

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

### Is Elemental Periodic Table Quiz free?

Elemental Periodic Table Quiz is free to download, with no in-app purchases.

### Do DR or Elemental Periodic Table Quiz have ads?

Elemental Periodic Table Quiz shows ads; DR does not.

### Which is updated more often, DR or Elemental Periodic Table Quiz?

DR ships an update every 2 months, and Elemental Periodic Table Quiz every 3 weeks. Most recently, DR was updated on October 9, 2026 and Elemental Periodic Table Quiz on October 10, 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.*