Jellywatch vs Beach Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jellywatch
This app serves as a global database for monitoring ocean conditions, focusing on jellyfish populations. It empowers citizen scientists to submit observations and photos, contributing to freely accessible data on blooms, red tides, and general marine environments. Species identification is also offered for submitted images.
- Ocean condition monitoring
- Jellyfish population tracking
- Citizen science reporting
- Global data submission
- Species identification
- Free data access
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Jellywatch is a database for monitoring ocean conditions, especially jellyfish populations. Citizen scientists are encouraged to submit reports from around the world. The data will be freely available to download or browse. Report jellyfish blooms, red tides, and even clean “normal” conditions you observe. If you submit a photo, we can identify the species for you as well.
Beach Detector
Discover and identify over 100 common animals, plants, and objects found on beaches. This app uses machine learning to recognize items via your phone's camera, offering quick and simple nature learning for all ages.
- Image recognition with machine learning
- Reference guide with 100+ beach items
- Learn about animals, plants, and more
- Intuitive and simple design
- Educational for children and adults
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Exploring the beach has never been more fun! Nature is fascinating, but you have to know something about what you see in order to have the greatest experience. With the Beach Detector you learn about the beach without being too nerdy, and in a quick and simple way. The app contains a reference book with 100 typical animals and plants and other things that you can often find on the beach. Beach Detector app also incorporates a feature that allows you to recognize many of the things you can find on the beach. By using the camera in your iPhone, you are provided with information about the various things you might encounter from the sea or living directly on the beach or in the dunes close by in Denmark. The beach is a paradise for locals and every single thing you find has its very own quirky history. Imagine being able to walk on the beach and learn about nature easily and simply, imagine being able to teach your children and each other about the adventurous world that is along Denmark's long coastlines. Suddenly you find out that the beach is nothing but sand and water. Kids will love it and the walk on the beach can easily go a little longer than usual. ************************ APP HIGHLIGHTS ************************ Beach Detector is your best friend when exploring the beach. - Intuitive design - Machine Learning for image recognition - More than 100 different animals and plants - Learning for both children and adults *********************** SAY HELLO *********************** We are always trying to improve Beach Detector and make it better and more fun. We therefore need your help. Do not hesitate to send us an email if you have any questions / suggestions / problems or if you just want to say hello. We love hearing from our users. If you like the app, be sure to rate us on the App Store. Tell your friends about how fun it is to use the Beach Detector.
Screenshots
Verdict
The clearest difference is rating: Beach Detector at 4.6 against Jellywatch's 3.0. Beach Detector also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (34 vs 2). Jellywatch's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, 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
Both are free to download. Beach Detector sells 1 one-off in-app purchase. Jellywatch asks for nothing beyond the download.
Beach Detector holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Beach Detector has 34 ratings behind it against 2, so its average is the more settled of the two.
Jellywatch ships an update every 3 months, Beach Detector every 3 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | Jellywatch | Beach Detector |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.6 (34 ratings) — better |
| Positive reviews | 90.9% of reviews | — |
| Number of ratings | 2 | 34 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.1 — better |
| Further details — not scored | ||
| Size | 6 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Monterey Bay Aquarium Research Institute | Grumsen Development ApS |
Customer experience
Jellywatch
Beach Detector
In-app purchases
Jellywatch
No in-app purchases
Beach Detector
- Lifetime access$2.99
