Duck vs iSanGennaro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Duck
This app presents a simple, interactive duck that quacks. It's a straightforward and amusing digital companion for lighthearted entertainment.
- Interactive duck simulation
- Quacking sound effects
- Amusing visual element
- Coffee-themed surprise
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It looks like a duck. It quacks like a duck. It must be one. But what's with the coffee?
iSanGennaro
Experience the blood miracle of Saint Gennaro in first person. Gently oscillate your device to the rhythm of prayers and witness the blood liquefy, a ritual believed to protect Naples. Learn more about the accompanying music compilations.
- First-person miracle experience
- Interactive blood liquefaction
- Rhythm-based prayer interaction
- Information on music compilations
- Tribute to Saint Gennaro
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With iSanGennaro you can experience in first person the blood miracle of Saint Gennaro, the most mysterious and popular ritual that takes place annualy in the Duomo of Napoli. When the blood liquefy the city of Napoli is protected and will be safe from eartquakes, disasters and the Vesuvius eruption too! If the miracle doesn’t happen a calamity is expected in the near future. Hold your iPhone vertically, with the screen pointed at you and genlty oscillate it. Follow the rythm of the prayers and watch the blood liquefy. If you are doing it right the prayers will be louder. iSanGennaro is a tribute to Saint Gennaro, created by the neapolitan Dj UèCervone, who annualy produce “SanGennaroBar” a world music compilation that mixes old folk sounds from all over the planet with modern electronic beats giving particular attention to neapolitan music. At the end of the game is possible to see more info on the compilations and buy them online.
Screenshots
Verdict
The clearest difference is rating: Duck at 4.7 against iSanGennaro's 3.0. Duck also leads on review sentiment (83% vs 50%) and update cadence (every 3 months vs every 54 months). iSanGennaro's advantage is iOS requirement (9.0 vs 17.6). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Duck holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Duck has 176 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 83% of Duck's written reviews are positive against 50% of iSanGennaro's.
Duck ships an update every 3 months, iSanGennaro every 54 months. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.
| Parameter | Duck | iSanGennaro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (176 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 83.1% of reviews — better | 50.0% of reviews |
| Number of ratings | 176 — better | 2 |
| Update frequency | Every 3 months — better | Every 54 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Miller | Dario Cervo |
Customer experience
Duck
iSanGennaro
Bugs and requests
Duck
Reported bugs
2 issues- Ducks sliding off the screen
- Inconsistent sound effects
Requested features
4 requests- More duck animations and behaviors
- Additional customization options
- Expanded functionality beyond just watching ducks
- Integration with other apps or services
iSanGennaro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Duck
No in-app purchases
iSanGennaro
No in-app purchases
