# T E 2013 vs CTB

The clearest difference is in-app purchases: CTB at none against T E 2013's 1. CTB also leads on update cadence (monthly vs every 5 months). T E 2013's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. T E 2013 sells 1 one-off in-app purchase. CTB asks for nothing beyond the download.

T E 2013 ships an update every 5 months, CTB monthly. The most recent releases landed on September 18, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | T E 2013 | CTB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Monthly** |
| Size | 1.6 GB | 53 MB |
| Requires iOS | 17.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Aecio Teixeira](https://appshunter.io/developer/898658347) | [Ricardo de Oliveira Cardoso](https://appshunter.io/developer/1758204671) |

## What reviewers say

### T E 2013

[App page](https://appshunter.io/ios/app/t-e-2013/id1534022926)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pacote Curso Completo | $3.99 | one-time |


### CTB

[App page](https://appshunter.io/ios/app/ctb-2026/id6596763401)

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

**In-app purchases:** none


## Frequently asked questions

### Is T E 2013 free?

T E 2013 is free to download, with in-app purchases available.

### Is CTB free?

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

### Do T E 2013 or CTB have ads?

CTB shows ads; T E 2013 does not.

### Which is updated more often, T E 2013 or CTB?

T E 2013 ships an update every 5 months, and CTB monthly. Most recently, T E 2013 was updated on September 18, 2026 and CTB on September 11, 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.*