# PdB vs Rentri

The clearest difference is update cadence: Rentri at every 11 days against PdB's every 3 weeks. PdB's advantage is iOS requirement (16.4 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PdB ships an update every 3 weeks, Rentri every 11 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | PdB | Rentri |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Size | 41 MB | 110 MB |
| Requires iOS | **16.4** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sistemi Tre s.r.l.](https://appshunter.io/developer/1141906171) | [Zucchetti Ambiente SRL](https://appshunter.io/developer/1674747630) |

## What reviewers say

### PdB

[App page](https://appshunter.io/ios/app/pdb-conferimenti/id1571683551)

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

**In-app purchases:** none


### Rentri

[App page](https://appshunter.io/ios/app/rentri/id1636284933)

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

**In-app purchases:** none


## Frequently asked questions

### Is PdB free?

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

### Is Rentri free?

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

### Do PdB or Rentri have ads?

Neither PdB nor Rentri shows ads.

### Which is updated more often, PdB or Rentri?

PdB ships an update every 3 weeks, and Rentri every 11 days. Most recently, PdB was updated on November 3, 2026 and Rentri on November 3, 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.*