Comparison

SeaPhoto vs Jellywatch

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

Head to head
About

SeaPhoto

Explore a vast collection of high-quality images and detailed ecological information about marine life in the Monterey Bay National Marine Sanctuary. Browse species by name or functional group, with photos downloaded on demand and stored for offline access.

Highlights
  • 1,650+ high-quality marine life images
  • 631+ species with ecological information
  • Browse by common/scientific name
  • Filter by functional group
  • On-demand photo download
  • Offline photo storage
  • Share photos via Twitter/email
Features
Read full description

This application provides access to over 1,650 high quality images of over 631 species of marine life of the Monterey Bay National Marine Sanctuary, including over 130 species with detailed ecological information. You can browse by common or scientific name within all species at once, or by large functional group (birds, marine mammals, fishes, invertebrates, and algae). This app is lightweight and can be downloaded over a cellular connection. Each photo is downloaded “on demand” over a cellular connection, and subsequently become permanently stored on your iOS device for immediate access in the future. You can even share your favorite photos through Twitter and email. One of our nation’s most spectacular marine protected areas, the Monterey Bay National Marine Sanctuary is filled with an amazing array of wildlife – from tiny shrimp to giant blue whales. Stretching along the central coast from San Francisco to Cambria, the sanctuary includes pristine beaches, jewel-like tide pools, lush kelp forests, steep canyons and an offshore seamount hosting 34 species of marine mammals, more than 100 species of seabirds and shorebirds, more than 400 species of fish and countless invertebrates and algae. We invite you to explore and help protect this national undersea treasure.

About

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.

Highlights
  • Ocean condition monitoring
  • Jellyfish population tracking
  • Citizen science reporting
  • Global data submission
  • Species identification
  • Free data access
Features
Read full description

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.

Screenshots

SeaPhoto4 screens
Jellywatch4 screens

Verdict

The call

The clearest difference is rating: SeaPhoto at 5.0 against Jellywatch's 3.0. SeaPhoto also leads on review sentiment (100% vs 91%) and iOS requirement (8.0 vs 14.0). Jellywatch's advantage is update cadence (every 3 months vs every 22 months). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SeaPhoto holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 100% of SeaPhoto's written reviews are positive against 91% of Jellywatch's.

UpkeepUpdate frequency

SeaPhoto ships an update every 22 months, Jellywatch every 3 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 6 level
SeaPhoto versus Jellywatch: the parameters behind the verdict, then further details
ParameterSeaPhotoJellywatch
PriceFreeFree
Rating5.0 (3 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews — better90.9% of reviews
Number of ratings3 — better2
Update frequencyEvery 22 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better14.0
Further details — not scored
Size54 MB6 MB
Age rating4+4+
DeveloperMonterey Bay Marine Sanctuary FoundationMonterey Bay Aquarium Research Institute

Customer experience

SeaPhoto

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Jellywatch

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

In-app purchases

None

SeaPhoto

No in-app purchases

None

Jellywatch

No in-app purchases

Questions

Is SeaPhoto free?
SeaPhoto is free to download, with no in-app purchases.
Is Jellywatch free?
Jellywatch is free to download, with no in-app purchases.
Which has better reviews, SeaPhoto or Jellywatch?
SeaPhoto is rated higher. SeaPhoto averages 5.0 out of 5 from 3 ratings, while Jellywatch averages 3.0 from 2 ratings.
Do SeaPhoto or Jellywatch have ads?
Neither SeaPhoto nor Jellywatch shows ads.
Which is updated more often, SeaPhoto or Jellywatch?
SeaPhoto ships an update every 22 months, and Jellywatch every 3 months. Most recently, SeaPhoto was updated on October 23, 2026 and Jellywatch on October 22, 2026.

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