# Learn words for numbers vs Physica

The clearest difference is in-app purchases: Learn words for numbers at none against Physica's 6. Learn words for numbers also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Physica sells 6 in-app purchases, starting at $6.99 per month. Learn words for numbers asks for nothing beyond the download.

## The numbers

| Metric | Learn words for numbers | Physica |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 months |
| Size | 33 MB | 111 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Douwe Osinga](https://appshunter.io/developer/1805992438) | [Lojas Software Corp](https://appshunter.io/developer/1799458054) |

## What reviewers say

### Learn words for numbers

[App page](https://appshunter.io/ios/app/learn-words-for-numbers/id6744084438)

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

**In-app purchases:** none


### Physica

[App page](https://appshunter.io/ios/app/physica-discover-physics/id6767663716)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physica Pro (Monthly) | $6.99 | per month |
| 25 Hints - Photon Pack | $0.99 | one-time |
| 5 Skips - Tachyon Pack | $0.99 | one-time |
| 60 Hints - Kinetic Bundle | $1.99 | one-time |
| 15 Skips - Wormhole Bundle | $1.99 | one-time |
| 150 Hints · Photon Pack | $3.99 | one-time |


## Frequently asked questions

### Is Learn words for numbers free?

Learn words for numbers is free to download, with no in-app purchases.

### Is Physica free?

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

### Do Learn words for numbers or Physica have ads?

Physica shows ads; Learn words for numbers does not.

---

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