Comparison

eBird vs Fins

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

Head to head
About

eBird

Easily record bird sightings in the field and contribute to a global database for scientific research and conservation. This app offers offline functionality, customized checklists, and GPS-enabled location plotting.

Highlights
  • Record bird observations globally
  • Global taxonomy and local common names
  • Location and time-based checklists
  • Rare species flagging
  • Offline functionality
  • GPS location plotting
  • Trip and day list tracking
Features
Currently charting
Read full description

eBird Mobile makes it easy to record the birds you see in the field, and seamlessly link these observations with eBird--a global online database of bird records used by hundreds of thousands of birders around the world. This free resource makes it easy to keep track of what you see, while making your data openly available for scientific research, education, and conservation. eBird Mobile is the only app that passes information directly from the iOS device to your eBird account on the web. Features - Enter bird observations from any location around the world. - Full global taxonomy based on The Clements Checklist of Birds of the World. - Common names available in local languages (e.g., Portuguese names in Brazil or in Portugal). - Checklists customized for your location and time of year, showing most likely species based on eBird data. - Rare species flagged during data entry and on the checklist. - "Record as you go" functionality for incremental list keeping and counting while birding. - GPS enabled location plotting to ensure accuracy. - Map tools that enable selecting from hundreds of thousands of eBird "Hotspots." - Full offline functionality, enabling use in places with limited or no Internet connection. - Trip and Day list functionality that makes it easy to keep track of your species list on a particular outing. - Support for iPhone, iPad, and iPod Touch. - Entire app translated to German, Mandarin, French, Spanish, Portuguese (Brazil), Turkish, and Dutch.

About

Fins

Instantly identify marine life from photos or guided searches. Log your dives, track sightings, and build a personal species collection. Engage with trivia games, earn badges, and plan liveaboard trips while contributing to ocean conservation.

Highlights
  • AI Marine Species ID
  • Guided Search
  • Dive Logbook
  • Marine Trivia Games
  • Badges & Achievements
  • Liveaboard Planning
  • Community Sharing
Features
Read full description

Fins identifies fish, nudibranchs and other invertebrates from a photo or guided step-by-step search, in seconds, wherever you are in the world. Whether you're logging a dive in Raja Ampat, snorkeling the Great Barrier Reef, or just curious about something you spotted at the beach, Fins brings the ocean's species to your fingertips. AI Marine Species ID Upload or snap a photo and let Fins identify the species instantly. Or use guided search to narrow it down step by step, no photo needed. Dive Logbook & Snorkel Tracker Record every dive, log your sightings, and build your personal life list. Your ocean story, beautifully kept. Marine Trivia & ID Games Test your reef knowledge, earn points, and climb the leaderboard. Learning the ocean has never been this fun. Badges & Achievements Unlock badges for new species, dive milestones, and rare finds. Spot a rare nudibranch? There's a badge for that. Liveaboard & Travel Planning Browse and book liveaboards across the world's top dive destinations, all inside the app. Join the Movement Every sighting you log contributes to ocean awareness and conservation. You're not just exploring, you’re helping. Community Share sightings, solve marine mysteries together, and connect with a growing global community of ocean lovers. Who Fins Is For Divers & Snorkelers — Log dives, ID species, relive every underwater adventure. Underwater Photographers — Name your shots and build your own species collection. Liveaboard Travelers — Make the most of every surface interval. Students & Educators — A modern, visual marine field guide for the classroom or the reef. Citizen Scientists — Every sighting you log matters. Curious Explorers — Discover the ocean from anywhere on earth. Fins is your companion for exploration, learning, and conservation. Download Fins and dive smarter.

Screenshots

eBird4 screens
Fins4 screens

Verdict

The call

The clearest difference is review sentiment: Fins at 100% against eBird's 37%. Fins also leads on rating (4.9 vs 3.8) and update cadence (weekly vs every 2 months). eBird's advantage is in-app purchases (none vs 2) and ratings volume (825 vs 16). On price, ads and device support 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. Fins sells 2 in-app purchases, starting at $4.99 per month. eBird asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Fins holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: eBird has 825 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 37% of eBird's written reviews are positive against 100% of Fins's.

UpkeepUpdate frequency

eBird ships an update every 2 months, Fins weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard8 real differences · 3 level
eBird versus Fins: the parameters behind the verdict, then further details
ParametereBirdFins
PriceFreeFree
Rating3.8 (825 ratings)4.9 (16 ratings) — better
Positive reviews37.1% of reviews100.0% of reviews — better
Number of ratings825 — better16
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
Best chart rank#136 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.0 — better
Further details — not scored
Size81 MB179 MB
Age rating4+17+
DeveloperCornell Universityevan foster

Customer experience

eBird

All ratings824 ratings
Positive67.6%
Neutral9.7%
Negative22.7%
Written reviews369 reviews
Positive37.1%
Neutral18.2%
Negative44.7%

Fins

All ratings16 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

eBird

Reported bugs

5 issues
  • App crashes when trying to start a new checklist
  • Inability to log in or access account
  • Inconsistent behavior with bird pack downloads
  • Checklist data not syncing across devices
  • Explore feature not working as expected

Requested features

5 requests
  • Add ability to upload photos and audio directly in the app
  • Implement alphabetical sorting for checklists
  • Improve syncing between app and website
  • Add more advanced filtering and search options
  • Provide offline access to bird information

Fins

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

eBird

No in-app purchases

2 purchases

Fins

Subscriptions2
  • Fins Pro Monthly$4.991 Month
  • Fins Pro Yearly7 Days trial$24.991 Year

Questions

Is eBird free?
eBird is free to download, with no in-app purchases.
Is Fins free?
Fins is free to download, with in-app purchases available.
Which has better reviews, eBird or Fins?
Fins is rated higher. eBird averages 3.8 out of 5 from 825 ratings, while Fins averages 4.9 from 16 ratings.
Do eBird or Fins have ads?
Neither eBird nor Fins shows ads.
Which is updated more often, eBird or Fins?
eBird ships an update every 2 months, and Fins weekly. Most recently, eBird was updated on October 24, 2026 and Fins on October 25, 2026.

Other comparisons