# Citlin vs Newtonic

The clearest difference is in-app purchases: Citlin at none against Newtonic's 3. Citlin also leads on iOS requirement (15.1 vs 17.0). Newtonic's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Newtonic sells 3 in-app purchases, starting at $3.99 per month. Citlin asks for nothing beyond the download.

## The numbers

| Metric | Citlin | Newtonic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Daily |
| Size | 55 MB | 44 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [nachito fukuda](https://appshunter.io/developer/1795833848) | [BURAK GOKYUZ](https://appshunter.io/developer/6824495990) |

## What reviewers say

### Citlin

[App page](https://appshunter.io/ios/app/citlin/id6742269279)

**Features:** macOS Compatibility

**In-app purchases:** none


### Newtonic

[App page](https://appshunter.io/ios/app/newtonic-physics-simulator/id6824856991)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Newtonic Pro monthly | $3.99 | per month |
| Newtonic Pro yearly | $19.99 | per year |
| Newtonic Pro lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Citlin free?

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

### Is Newtonic free?

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

### Do Citlin or Newtonic have ads?

Citlin shows ads; Newtonic does not.

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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.*