Pinneggiando vs π Pi Challenge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pinneggiando
Explore the rich biodiversity of Italian seas with this educational app. Point your device at the water to identify marine species or browse them manually. Learn about their classification, habitat, and distribution, and test your knowledge with interactive games.
- Marine species identification via device camera
- Browse species by biogeographic zone
- Detailed species information (classification, habitat, distribution)
- Interactive educational games
- Ask an expert feature
- Offline access to information
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Pinneggiando is the result of years of marine biology studies. It arises from our passion for the sea and from the desire to emphasize the complex biodiversity of the Italian seas in order to increase the awareness and knowledge of everybody, but also to make more usable, to experts and non, the marine world. For a better approach the Italian seas were divided into nine biogeographic zones, defined by transition areas that vary with climate change and listing for each one the species present. The collaboration of expert taxonomists colleagues, was fundamental for this aim. By pointing your device towards the sea the application shows the details of all the species present in the identified zone. For the most curious, it is possible to view all the species of all the zones, selecting them manually. For each species systematic classification, habitat, biogeographical distribution, and other information are specified. Moreover, to make the application fun, we have added a section of "Games" and... if you have a question "Ask the Expert".
π Pi Challenge
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An app for memorizing the digits of Pi. It supports up to 30 million digits… totally unnecessary, but fun. Comes with a ranking feature! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Pinneggiando at none against π Pi Challenge's 1. Pinneggiando also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. π Pi Challenge sells 1 in-app purchase, starting at $0.99 per month. Pinneggiando asks for nothing beyond the download.
Pinneggiando ships an update every 2 weeks, π Pi Challenge every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.
| Parameter | Pinneggiando | π Pi Challenge |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 21 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | ETT S.p.A. | SIC Company Limited |
In-app purchases
Pinneggiando
No in-app purchases
π Pi Challenge
- Monthly Subscription$0.991 Month
