# Hydropolis vs biletyna.pl

The clearest difference is review sentiment: biletyna.pl at 67% against Hydropolis's 17%. biletyna.pl also leads on update cadence (monthly vs every 10 months). Hydropolis's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Hydropolis ships an update every 10 months, biletyna.pl monthly. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Hydropolis | biletyna.pl |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (36 ratings)](https://appshunter.io/ios/app/biletynapl/id1599249171/reviews)** |
| Number of ratings | — | **36** |
| Positive reviews | 16.7% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | Free | Free |
| Size | 118 MB | 29 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [miejskie przedsiebiorstwo wodociagow i kanalizacji s.a](https://appshunter.io/developer/1444870860) | [GnP sp. z o.o. sp. k.](https://appshunter.io/developer/998631162) |

## What reviewers say

### Hydropolis

[App page](https://appshunter.io/ios/app/hydropolis/id1444870861)

Explore a water knowledge center through an audio guide. This app offers interactive exhibits and multimedia content to expand your understanding of water in an engaging and fun way.

**Highlights:** Audio guide functionality, Interactive installations, Multimedia content, Educational information, Engaging user experience

**Features:** macOS Compatibility

**In-app purchases:** none


### biletyna.pl

[App page](https://appshunter.io/ios/app/biletynapl/id1599249171)

Easily find and purchase tickets for your favorite events like concerts, theater, and sports. Store all your tickets digitally, access them offline, and share them with friends. Rate events and stay updated on upcoming performances.

**Highlights:** Intuitive event search and ticket purchase, Digital tickets with QR codes, Offline ticket access, Ticket sharing and transfer, Event ratings and reviews, Event notifications, Ticket return option

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hydropolis free?

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

### Is biletyna.pl free?

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

### Do Hydropolis or biletyna.pl have ads?

Neither Hydropolis nor biletyna.pl shows ads.

### Which is updated more often, Hydropolis or biletyna.pl?

Hydropolis ships an update every 10 months, and biletyna.pl monthly. Most recently, Hydropolis was updated on October 4, 2026 and biletyna.pl on October 2, 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.*