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Best Marlin Id Apps

180+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated November 2026

From beginner-friendly picks to power-user tools, our marlin id list covers 180+ iPhone apps updated through November 2026. Compare ratings, prices, and screenshots in one place.

Compare top Marlin Id Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Merlin Bird ID by Cornell LabMerlin Bird ID by Cornell LabFree4.9★ (114K)NoNoNov 2026
2Seek by iNaturalistSeek by iNaturalistFree4.8★ (31K)NoNoNov 2026
3Merlin PortalMerlin PortalFree5.0★ (1)NoNoJul 2026
4MERLIN PARIVAARMERLIN PARIVAARFree—NoNoMay 2026
5Bird ID - Call IdentificationBird ID - Call IdentificationFree4.6★ (43)NoYesOct 2026
6eBirdeBirdFree3.8★ (830)NoNoNov 2026
7Bozzuto's MerlinBozzuto's MerlinFree3.5★ (4)NoNoMay 2026
8Audubon Bird GuideAudubon Bird GuideFree4.3★ (4.5K)YesNoNov 2026

Top Picks for Marlin Id

Merlin Bird ID by Cornell Lab#1

Merlin Bird ID by Cornell Lab by Cornell University

Identify Birds You See & Hear
Editor's Choice
🔍 Reference
4.9😊(114K ratings)
Free
#33in Reference
Merlin Bird ID by Cornell Lab screenshot 1
Merlin Bird ID by Cornell Lab screenshot 2
Merlin Bird ID by Cornell Lab screenshot 3
Merlin Bird ID by Cornell Lab screenshot 4
Merlin Bird ID by Cornell Lab screenshot 5
Merlin Bird ID by Cornell Lab screenshot 6

Instantly identify birds by sight or sound. This app uses advanced machine learning and a vast database of sightings, sounds, and photos to help you discover and learn about avian species worldwide. Track your sightings and explore birds in your region.

What We Love

  • 🚀 Helpful for bird identification
  • 🔒 Accurate bird identification
  • 👍 Easy to use
  • 👍 Useful for beginners and experts
  • 👍 Enjoyable and fun to use
  • 👍 Comprehensive bird information
  • 👍 Excellent sound identification feature
  • 👍 Connects with eBird
  • 👍 Free app with no ads

Room to Improve

  • 🐛 Sound ID not always accurate
  • 🐛 Occasional crashes or bugs
  • 🐛 Difficulty adding birds to life list
  • 🐛 Limited bird packs for certain regions
  • 🐛 Requires location access
  • 🐛 High battery consumption
  • 🐛 Confusing user interface in some areas
Seek by iNaturalist#2

Seek by iNaturalist by iNaturalist

Identify plants & animals
Strong Contender
📚 Education
4.8😊(31K ratings)
Free
Seek by iNaturalist screenshot 1
Seek by iNaturalist screenshot 2
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Seek by iNaturalist screenshot 4
Seek by iNaturalist screenshot 5
Seek by iNaturalist screenshot 6

Identify plants, animals, and fungi using your phone's camera. Learn about the organisms around you and earn badges for your discoveries. It's a fun, kid-safe way to explore nature and expand your knowledge of the living world.

What We Love

  • 🚀 Accurate identification
  • 🌳 Helps connect with nature
  • 🎮 Fun and engaging challenges
  • 💰 Free with no ads
  • 📚 Provides species details
  • 🌍 Covers wide range of species

Room to Improve

  • 🐛 Inconsistent identification accuracy
  • 🔍 Difficulty focusing camera
  • 🤖 Struggles with small/moving objects
  • 🗂️ Lacks ability to edit/delete observations
  • 🗺️ Geographic limitations in species coverage
  • 🔋 Battery draining

More Marlin Id apps to explore

FAQ about Marlin Id

What are the best marlin id apps for iPhone?
Merlin Bird ID by Cornell Lab tops our marlin id apps ranking as of November 2026, with a 4.9-star average from 114K App Store ratings, and it's free to download.
Yes — 20 of the top marlin id apps we rank are free to download, including Merlin Bird ID by Cornell Lab and Seek by iNaturalist.
Merlin Bird ID by Cornell Lab has no ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 180+ marlin id apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.