# CTDC12 vs SciEspresso

The clearest difference is in-app purchases: CTDC12 at none against SciEspresso's 2. CTDC12 also leads on iOS requirement (11.0 vs 18.0). On price there is nothing between them.

Both are free to download. SciEspresso sells 2 in-app purchases, starting at $1.99 per month. CTDC12 asks for nothing beyond the download.

## The numbers

| Metric | CTDC12 | SciEspresso |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Size | 63 MB | 44 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 12+ |
| Developer | [Sociedad Comercial 4ID Limitada](https://appshunter.io/developer/1315029925) | [SciEspresso UG](https://appshunter.io/developer/1874955946) |

## What reviewers say

### CTDC12

[App page](https://appshunter.io/ios/app/ctdc12/id6495970384)

**In-app purchases:** none


### SciEspresso

[App page](https://appshunter.io/ios/app/sciespresso/id6758781453)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Double Shot | $1.99 | per month |
| Double Shot | $17.99 | per year |


## Frequently asked questions

### Is CTDC12 free?

CTDC12 is free to download, with no in-app purchases.

### Is SciEspresso free?

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

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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.*