Comparison

cda.pl vs Hydropolis

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

cda.pl

Free

🎬 Entertainment

★ 4.8160 ratingsView app →

About

cda.pl

Access a vast library of films and series legally and in high quality directly from your phone or tablet. Stream content to your TV using Chromecast and download titles for offline viewing. Enjoy Polish voiceovers, subtitles, and dubbing for cartoons.

Highlights

Access to premium films and series
Chromecast support for TV streaming
Offline viewing of downloaded content
Polish voiceovers, subtitles, and dubbing
Legal and high-quality streaming
Content from verified distributors

Read full description

Pobierz oficjalną aplikację CDA.pl i zyskaj wygodny dostęp do serwisu z Twojego telefonu lub tabletu. Przesyłaj filmy bezpośrednio na ekran telewizora dzięki wsparciu Chromecast. W aplikacji możesz przeglądać najpopularniejsze filmy dodane przez społeczność oraz uzyskać dostęp do filmów i seriali premium. CDA Premium to ponad 12000 filmów i seriali dostarczonych przez oficjalnych i zweryfikowanych dystrybutorów filmowych. Oglądasz legalnie i w najlepszej jakości prosto ze swojego smartfona. Filmy dostępne są z polskim lektorem lub napisami, a bajki z dubbingiem. Korzystając z CDA Premium wspierasz legalnych dystrybutorów i producentów. Materiały dostarcza m.in. Horizontal Line, Kino Świat, BestFilm, Independent Digital, Vision Film, Media4Fun, Vitra Film czy Studio Miniatur Filmowych. Wyjeżdżasz na wakacje? Pobierz swoje ulubione filmy, seriale lub bajki z CDA Premium i oglądaj offline - bez Internetu. W każdym momencie możesz zrezygnować z subskrypcji. Subskrypcja automatycznie się odnawia co miesiąc. Subskrypcja będzie kontynuowana, chyba że zostanie anulowana w ustawieniach telefonu co najmniej jeden dzień przed końcem okresu subskrypcji. Opłata za kolejny okres subskrypcji zostanie pobrana w ciągu 24 godzin przed upływem aktualnej subskrypcji. Regulamin Premium: https://www.cda.pl/regulamin/premium Pobierając aplikację potwierdzasz, że przeczytałeś i akceptujesz Regulamin świadczenia usług oraz Politykę prywatności. Ich treść znajdziesz tutaj: https://www.cda.pl/regulamin https://www.cda.pl/prywatnosc

About

Hydropolis

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

Read full description

Audio guide for Hydropolis - water knowledge center based in Wroclaw, Poland. Hydropolis is a place where diverse multimedia technologies, interactive installations, faithful replicas and models, as well as touch screens provide extensive information and serve one purpose... expanding your knowledge while having fun doing so!

Screenshots

cda.pl4 screens

Hydropolis4 screens

Verdict

The call

The clearest difference is review sentiment: cda.pl at 78% against Hydropolis's 17%. cda.pl also leads on update cadence (every 3 weeks vs every 10 months). Hydropolis's advantage is in-app purchases (none vs 8). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. cda.pl sells 8 in-app purchases, starting at $2.49 per month. Hydropolis asks for nothing beyond the download.

UpkeepUpdate frequency

cda.pl ships an update every 3 weeks, Hydropolis every 10 months. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level

cda.pl versus Hydropolis: the parameters behind the verdict, then further details
Parameter	cda.pl	Hydropolis
Price	Free	Free
Rating	4.8 (160 ratings) — better	—
Positive reviews	77.7% of reviews — better	16.7% of reviews
Number of ratings	160 — better	—
Update frequency	Every 3 weeks — better	Every 10 months
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Subscription	Free — better
Devices	iPhone, iPad, iPod, Apple TV — better	iPhone, iPad, iPod
Requires iOS	13.0	12.0 — better
Further details — not scored
Size	59 MB	118 MB
Age rating	12+	4+
Developer	CDA S.A.	miejskie przedsiebiorstwo wodociagow i kanalizacji s.a

Customer experience

cda.pl

All ratings160 ratings

Positive95.0%

Neutral1.3%

Negative3.8%

Written reviews242 reviews

Positive77.7%

Neutral3.7%

Negative18.6%

Hydropolis

Written reviews6 reviews

Positive16.7%

Neutral16.7%

Negative66.7%

Bugs and requests

cda.pl

Reported bugs

14 issues

App crashes on main profile (FireTV)
Videos freeze and buffer every 2 minutes
AirPlay functionality broken
App doesn't remember pause position
Login errors with Apple ID on TV

Show 9 more

Password recovery emails not received
Search results from Google don't load in app
Videos from links open to main page instead
Premium video loading issues
App changes video automatically while watching
Offline download feature non-functional
Unknown error after premium expiration
Playback stops every 30 seconds despite buffering
Missing episodes in series

Requested features

10 requests

Arabic and English language options
Improved search functionality for user videos
Language settings easier to access
Live TV functionality
Sync between app and website profiles

Show 5 more

Profile picture change on mobile
More Polish films and new releases
Better Chromecast support
Dark mode
Advanced filtering by content duration

Hydropolis

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

cda.pl

Subscriptions8

CDA TV$2.491 Month
CDA Premium14 Days trial$5.991 Month
CDA Premium 2$5.991 Month

Show 5 more

CDA Premium + TV Start$5.991 Month
CDA TV$8.991 Month
CDA Premium + TV Basic$11.991 Month
CDA Premium 314 Days trial$52.991 Year
CDA Premium 4$52.991 Year

None

Hydropolis

No in-app purchases

Questions

Is cda.pl free?

cda.pl is free to download, with in-app purchases available.

Is Hydropolis free?

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

Do cda.pl or Hydropolis have ads?

Neither cda.pl nor Hydropolis shows ads.

Which is updated more often, cda.pl or Hydropolis?

cda.pl ships an update every 3 weeks, and Hydropolis every 10 months. Most recently, cda.pl was updated on October 12, 2026 and Hydropolis on October 4, 2026.