# IP TU Delft vs Ludorbi

The clearest difference is in-app purchases: IP TU Delft at none against Ludorbi's 1. IP TU Delft also leads on ads (none vs shown). Ludorbi's advantage is update cadence (every 3 weeks vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Ludorbi sells 1 one-off in-app purchase. IP TU Delft asks for nothing beyond the download.

IP TU Delft ships an update every 3 months, Ludorbi every 3 weeks. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | IP TU Delft | Ludorbi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 82 MB | 63 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Delft University of Technology](https://appshunter.io/developer/352877212) | [Guillaume Pouppa-Bejuy](https://appshunter.io/developer/1896267724) |

## What reviewers say

### IP TU Delft

[App page](https://appshunter.io/ios/app/ip-tu-delft/id1524513172)

**Features:** Vision Pro support

**In-app purchases:** none


### Ludorbi

[App page](https://appshunter.io/ios/app/ludorbi/id6807735874)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sans publicité | $3.99 | one-time |


## Frequently asked questions

### Is IP TU Delft free?

IP TU Delft is free to download, with no in-app purchases.

### Is Ludorbi free?

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

### Do IP TU Delft or Ludorbi have ads?

Ludorbi shows ads; IP TU Delft does not.

### Which is updated more often, IP TU Delft or Ludorbi?

IP TU Delft ships an update every 3 months, and Ludorbi every 3 weeks. Most recently, IP TU Delft was updated on November 3, 2026 and Ludorbi on October 29, 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.*