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Education · head to head

Merlin Bird ID vs Photomath

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
Photomath logo

Photomath

Education

Camera based maths solver that shows step by step working, owned by Google since 2022

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.; Photomath full free step by step solutions make it straightforward for a student to submit copied working without doing the reasoning themselves, which is a real concern for teachers assigning homework.
  • They diverge on capability: Merlin Bird ID covers Sound ID, Photomath covers Camera scanning.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where Merlin Bird ID and Photomath differ
AttributeMerlin Bird IDPhotomath
Pricing modelFree, no ads and no in-app purchasesFree with a Plus subscription

Identical on both: starting price (Free), free tier (Yes), platforms (iOS, Android), 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 Photomath

  • Camera scanning
  • Step by step solutions
  • Built-in calculator
  • Word problem support
  • Animated explanations
  • Textbook alignment

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 Photomath
  • A birdwatcher building a life list who wants identification tied to real regional sighting datanot Photomath
  • Someone teaching a child to identify birds without exposing them to ads or a paywallnot Photomath
  • A hiker who wants offline bird identification in an area with no signalnot Photomath

Photomath

  • A student checking their own worked answer against the app steps to find where a method went wrongnot Merlin Bird ID
  • A parent who cannot help with unfamiliar high school maths and needs a worked explanation rather than just an answernot Merlin Bird ID
  • A student working through word problems in a subject not covered by the free tier who needs the Plus subscriptionnot Merlin Bird ID
  • A school evaluating whether to recommend or restrict the app given the ease of copying a full worked solutionnot 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.

Photomath

  • Full free step by step solutions make it straightforward for a student to submit copied working without doing the reasoning themselves, which is a real concern for teachers assigning homework.
  • Word problems, a common school assessment format, are gated behind the Plus subscription, so the free tier is weaker on exactly the problem type many students struggle with most.
  • Camera recognition of messy handwriting or complex notation such as matrices or multi-line proofs is unreliable, and misreads produce confidently wrong steps.
  • Since the 2022 Google acquisition, the product sits inside a company whose primary business is advertising and data, which is a relevant factor for schools with strict student data policies.
  • It solves problems rather than teaching underlying concepts from scratch, so a student with no foundational understanding gets a worked answer but not necessarily comprehension.

Pricing, plan by plan

Merlin Bird ID

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

Photomath

Free
  • Photomath Plus$9.99/month
    • Step by step solutions for most problem types free and unlimited on the base app
    • Plus unlocks word problems, animated explanations and deeper steps
    • Plus available at roughly $59.99 billed annually as a cheaper alternative to monthly

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 Photomath if

  • You need camera scanning.
  • You want to start without paying.
  • You work on iOS, Android.
  • You also want step by step solutions.
Photomath review

Questions people ask

Is Merlin Bird ID or Photomath better?
Neither clearly leads. Merlin Bird ID starts at Free and Photomath at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Merlin Bird ID or Photomath?
Merlin Bird ID starts at Free and Photomath at Free.
Does Merlin Bird ID or Photomath run on more platforms?
Both run on iOS, Android, so platform support will not decide this one for you.
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 Photomath is typically brought in for.
What can Merlin Bird ID do that Photomath cannot?
Merlin Bird ID covers Sound ID, Photo ID, Step-by-step ID, Offline regional packs. Photomath covers Camera scanning, Step by step solutions, Built-in calculator, Word problem support.

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.

Photomath: Is Photomath free?

Basic step by step solutions for most maths problem types are free and unlimited. Word problems, animated explanations and some textbook-specific solutions require Photomath Plus.

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.

Photomath: Who owns Photomath now?

Google acquired Photomath in 2022. It operates as a standalone app but is owned by Google.

Merlin Bird ID: Does it work offline?

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

Photomath: Does it just give the answer or show working?

It shows step by step working for the method used, not only the final answer, on both free and Plus tiers, with Plus adding more detail.

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