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Education · head to head

Merlin Bird ID vs Udemy

Merlin Bird ID logo

Merlin Bird ID

Education

Free bird identification app from Cornell Lab of Ornithology using photo, sound and step-by-step ID

From
Free
Rated
-
Full reviewWebsite
Udemy logo

Udemy

Education

World's largest marketplace for online learning

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Merlin Bird ID it only identifies birds, so it is not useful for plants, insects or other wildlife the way a general nature app is.; Udemy course quality varies significantly as Udemy allows anyone to create and sell courses without vetting
  • They diverge on capability: Merlin Bird ID covers Sound ID, Udemy covers Video courses.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Merlin Bird ID and Udemy actually diverge.

Attributes where Merlin Bird ID and Udemy differ
AttributeMerlin Bird IDUdemy
Pricing modelFree, no ads and no in-app purchasesUnknown
PlatformsiOS, AndroidWeb, iOS, Android
FoundedUnknown2010

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Education).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Merlin Bird ID

  • Sound ID
  • Photo ID
  • Step-by-step ID
  • Offline regional packs
  • eBird-linked suggestions
  • No account required for basic use

Only in Udemy

  • Video courses
  • Quizzes
  • Assignments
  • Certificates
  • Mobile learning
  • Offline viewing
  • Q&A
  • Reviews

What people use each for

The jobs each tool is most often brought in to do.

Merlin Bird ID

  • A casual walker who hears a bird and wants to know what it is without paying for an appnot Udemy
  • A birdwatcher building a life list who wants identification tied to real regional sighting datanot Udemy
  • Someone teaching a child to identify birds without exposing them to ads or a paywallnot Udemy
  • A hiker who wants offline bird identification in an area with no signalnot Udemy

Udemy

  • Skill buildingnot Merlin Bird ID
  • Career transitionnot Merlin Bird ID
  • Professional developmentnot Merlin Bird ID
  • Team trainingnot Merlin Bird ID

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Merlin Bird ID

  • It only identifies birds, so it is not useful for plants, insects or other wildlife the way a general nature app is.
  • Sound ID can struggle in noisy environments or with overlapping bird calls, since it depends on a clean audio signal.
  • Being a free institutional project, feature releases and interface polish move more slowly than a funded commercial app.
  • Photo ID accuracy drops for juvenile birds, moulting birds or poor-quality photos, more so than for well-lit adult specimens.
  • It has no social or gamified layer, so users who want streaks, badges or a community feed will find it plain by comparison.

Udemy

  • Course quality varies significantly as Udemy allows anyone to create and sell courses without vetting
  • No formal credentials or degrees offered, unlike Coursera and edX which offer institution-branded certificates
  • Courses are self-paced with no instructor interaction or support, making structured learning difficult for some students

Pricing, plan by plan

Merlin Bird ID

Free
  • Merlin Bird IDFree
    • All identification modes included
    • Offline regional bird packs
    • No account required for identification

Udemy

Free
  • Personal$19/month
    • 11,000+ courses access
  • Team$360/year
    • For 5-20 people

Which should you pick?

Choose Merlin Bird ID if

  • You need sound id.
  • You want to start without paying.
  • You work on iOS, Android.
  • You also want photo id.
Merlin Bird ID review

Choose Udemy if

  • You need video courses.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want quizzes.
Udemy review

Questions people ask

Is Merlin Bird ID or Udemy better?
Neither clearly leads. Merlin Bird ID starts at Free and Udemy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Merlin Bird ID or Udemy?
Merlin Bird ID starts at Free and Udemy at Free.
Does Merlin Bird ID or Udemy run on more platforms?
Merlin Bird ID runs on iOS, Android. Udemy runs on Web, iOS, Android.
Can I use Merlin Bird ID for free?
Both have a free tier, so you can try either at no cost before committing.
What is Merlin Bird ID best used for?
Merlin Bird ID is most often used for a casual walker who hears a bird and wants to know what it is without paying for an app, a birdwatcher building a life list who wants identification tied to real regional sighting data, someone teaching a child to identify birds without exposing them to ads or a paywall, a hiker who wants offline bird identification in an area with no signal. Of those, a casual walker who hears a bird and wants to know what it is without paying for an app and a birdwatcher building a life list who wants identification tied to real regional sighting data are not what Udemy is typically brought in for.
What can Merlin Bird ID do that Udemy cannot?
Merlin Bird ID covers Sound ID, Photo ID, Step-by-step ID, Offline regional packs. Udemy covers Video courses, Quizzes, Assignments, Certificates.

Answered from the vendors’ own pages

Merlin Bird ID: Is Merlin Bird ID really free with no catch?

Yes. It has no ads, no in-app purchases and no subscription; it is funded by the Cornell Lab of Ornithology as a research and outreach tool.

Udemy: Does Udemy offer team/business pricing?

Yes, Udemy's Team plan costs $360 per user annually for groups of 5 to 20 people, in addition to individual Personal plan at $19/month.

Source
Merlin Bird ID: How is it different from eBird?

Merlin identifies birds; eBird is where you log checklists and sightings that feed the research database Merlin draws its suggestions from.

Merlin Bird ID: Does it work offline?

Yes, once you download the regional bird pack for your area.

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