# avvistAPP vs Dive4Diadema

The clearest difference is update cadence: Dive4Diadema at every 3 days against avvistAPP's every 10 months. Dive4Diadema also leads on iOS requirement (11.0 vs 17.6). 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.

avvistAPP ships an update every 10 months, Dive4Diadema every 3 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | avvistAPP | Dive4Diadema |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 days** |
| Size | 11 MB | 29 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Divulgando Srl](https://appshunter.io/developer/332688646) | [Code for Nature](https://appshunter.io/developer/1829374322) |

## What reviewers say

### avvistAPP

[App page](https://appshunter.io/ios/app/avvistapp/id1471542933)

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

**In-app purchases:** none


### Dive4Diadema

[App page](https://appshunter.io/ios/app/dive4diadema/id6464075724)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is avvistAPP free?

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

### Is Dive4Diadema free?

Dive4Diadema is free to download, with no in-app purchases.

### Do avvistAPP or Dive4Diadema have ads?

Neither avvistAPP nor Dive4Diadema shows ads.

### Which is updated more often, avvistAPP or Dive4Diadema?

avvistAPP ships an update every 10 months, and Dive4Diadema every 3 days. Most recently, avvistAPP was updated on November 6, 2026 and Dive4Diadema on November 7, 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.*