# MAXXI guide vs PDE

The clearest difference is update cadence: MAXXI guide at every 4 months against PDE's every 12 months. MAXXI guide also leads on iOS requirement (9.0 vs 13.0). 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.

MAXXI guide ships an update every 4 months, PDE every 12 months. The most recent releases landed on September 19, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | MAXXI guide | PDE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Size | 52 MB | 313 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OPHRYS Systèmes](https://appshunter.io/developer/388632731) | [TERNA RETE ITALIA SPA](https://appshunter.io/developer/1458535497) |

## What reviewers say

### MAXXI guide

[App page](https://appshunter.io/ios/app/maxxi-guide/id1578275747)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDE

[App page](https://appshunter.io/ios/app/pde/id6463196517)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MAXXI guide free?

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

### Is PDE free?

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

### Do MAXXI guide or PDE have ads?

Neither MAXXI guide nor PDE shows ads.

### Which is updated more often, MAXXI guide or PDE?

MAXXI guide ships an update every 4 months, and PDE every 12 months. Most recently, MAXXI guide was updated on September 19, 2026 and PDE on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*