# WikiMoon vs Lumen

The clearest difference is ads: WikiMoon at none against Lumen's shown. Lumen's advantage is iOS requirement (16.4 vs 18.6). 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.

## The numbers

| Metric | WikiMoon | Lumen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Size | 16 MB | 70 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | +4 |
| Developer | [Angelo Sasso](https://appshunter.io/developer/6784309327) | [Haileslassie Lilay Desalegn](https://appshunter.io/developer/1841785547) |

## What reviewers say

### WikiMoon

[App page](https://appshunter.io/ios/app/wikimoon/id6784453717)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumen

[App page](https://appshunter.io/ios/app/lumen-periodic-table/id6799425039)

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

**In-app purchases:** none


## Frequently asked questions

### Is WikiMoon free?

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

### Is Lumen free?

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

### Do WikiMoon or Lumen have ads?

Lumen shows ads; WikiMoon does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*