Three Unrelated Developers Shipped an App Called "BirdLens: Bird Identifier" in 2025. All Three Sit at Zero Reviews — a Free Cornell Lab App Already Owns Almost Every Term They're Chasing

Merlin Bird ID by Cornell Lab

Cornell University

★ 4.86 (112,839 reviews) View on the App Store →

Search "bird identifier" on the US App Store and Merlin Bird ID — a free app built by Cornell University's ornithology lab — comes back first. It's also #1 for "bird id," "bird call identifier," "what bird is this," "bird song identifier," and "bird watching," in the US, the UK, and Germany. None of that stopped three separate developers from shipping an app called BirdLens: Bird Identifier in 2025 — one registered in the US, two in the UK — built around the same photo-and-song identification trick Merlin has done for free since 2014. All three sit at zero reviews.

1. One nonprofit app, four countries, nearly every term

Merlin isn't a scrappy indie winning on ASO tricks. It's backed by eBird, Cornell's citizen-science database of bird sightings, and funded by lab donors — the app itself carries no ads, no subscription, and no paywall. That funding model doesn't stop it from also winning the keyword fight outright:

France runs on different-language queries and tells a slightly different story. Merlin still leads most of them — #1 for "chant oiseau," "quel oiseau," and "reconnaître oiseau" — but drops to #2 for "identification oiseau" and #3 for "identifier oiseau." The app ahead of it on the single most generic French term is Picture Bird: Bird identifier, a subscription competitor with roughly 4,000 French reviews and ten years less history than Merlin's underlying eBird dataset. It's the one place in four countries where a commercial rival genuinely outranks the free incumbent on a top-tier generic term.

Chart position is where Merlin's dominance actually breaks down. In the real top-100 Reference chart, it holds #2 in the UK — but only #16 in Germany, #16 in France, and #19 in the US. Picture Bird and Bird Identifier: BirdScope, despite 40,000 and 2,900 reviews respectively, don't appear in the US top-100 Reference or Lifestyle charts at all. Reference is a crowded category everywhere — dictionaries, Bible apps, translators — so even the search leader in a niche isn't guaranteed a top-20 browse-chart slot in every market.

2. The same "AI scan and identify" template, reskinned by species and by country

A chunk of the "bird identifier" search results in every market checked aren't bird apps that happen to compete with each other — they're the same generic photo-scanning template, aimed at a different subject per listing, often by the same publisher. Manuel Worlitzer's US listing is Bird Identifier: AI Scan; his French listing, published under an almost identical name, is Identifier Plume: AI Scan — same "AI Scan" branding, same screenshots style, but for feathers instead of birds. Mobile Aplicaciones SL runs the same play: Bird Identifier - Ornithology in the US, Identificateur d'Oiseaux IA in France. Sergii Nesterenko runs three separate listings in the French store alone — bird identification, feather identification, and egg identification — each a near-identical wrapper around the same photo-to-species pipeline.

The same "bird identifier" search also surfaces generic, species-agnostic scanner apps that just happen to rank for it: Lens AI: Identify Anything, EveryScan・KI Erkennung, Lens Photo Scan・Kennung Alle, Tous identifiants: AI Image ID. None of these are bird apps at all — they're universal object-identification utilities, and "bird" is just one of the things their marketing copy lists among plants, rocks, and dog breeds. The bird-identifier niche isn't a closed market; it's a naming surface that a much larger AI-scanner ecosystem is already fishing in.

3. Twenty near-identical "Bird Identifier" apps in the US store, ninety-six reviews between them

Set the template apps and the established players aside, and the US store still has twenty apps literally named some version of "Bird Identifier: ___" or "___: Bird Identifier" — almost all launched in 2024, 2025, or 2026. Combined, they carry 96 reviews. Merlin alone has 112,839.

This is a floor, not a ceiling — it excludes Bird Identifier: BirdScope (2,895 reviews, launched 2025) and Bird Identifier: Roostly (roughly 2,000 reviews, launched 2021), the two apps in this naming family that actually built an audience. It also excludes the parallel wave running under German and French names — Vogel bestimmen, Vögel erkennen, Identification d'oiseau — which repeats the same pattern with a different set of one- or two-person developer accounts.

4. Same name, different shell — three "BirdLens," two "Birdr"

Somewhere past duplicated templates, this niche has duplicated brand names outright. Three developer accounts that show no connection to each other — different bundle ID conventions, different developer sites, different countries of registration — each shipped an app called some version of "BirdLens: Bird Identifier" in 2025:

The third one is the most pointed. Second Wind Limited's own listing pitches BirdLens as a journaling app that goes further than the competition: "Move beyond the data-heavy lists of eBird and the simple identification of Merlin. Embrace a new, narrative-driven way of birdwatching." It's naming Merlin — the app it shares a core feature with — as the thing it's better than, while sitting at zero reviews against Merlin's 112,839.

A near-identical collision happened with "Birdr." David Pavlovschii's Birdr AI: Bird Identifier (localized into German and French under the same app record) updated its listing on September 20, 2026. Five days later, Hoftware LLC's separate app, birdr: Bird Identifier AI, pushed an update of its own — release notes: "Improved App Store listing so more birders can find birdr. No changes to the app itself." Both apps are zero-review, both launched in 2026, both answer to essentially the same one-word name, and both were still actively iterating their store listings in the same week this data was pulled.

5. Demand for the generic term is fading as the wave keeps shipping

Both terms peak in spring — late April through early June, spring migration season across the Northern Hemisphere — then fall by roughly three-quarters heading into September, right as several of the zero-review clones above were still shipping their first versions. Google's own rising-query data for "bird identifier" points at the incumbent by name: "merlin bird id app" and "merlin app" are both breakout queries gaining traction, alongside "identify bird sounds," the single fastest-rising related search. People aren't just searching a generic category term and picking whatever App Store shows them first — a meaningful share are already searching for Merlin specifically, before they ever open the store.

What this niche says about naming an app after a market someone else already won

• Check who already owns the generic term before you pick a name that copies it. Merlin ranks #1 for "bird identifier" in three of four markets checked. A new entrant using that exact phrase as its subtitle is competing directly against a free, ad-free, nonprofit app with 112,839 reviews.
• A unique-sounding brand name isn't unique if three other developers had the same idea. "BirdLens" and "Birdr" each identify two to three separate, unrelated apps launched within months of each other — check the App Store for your exact name before committing to it, not after.
• Naming your competitor in your own description is a real strategy, but it invites the comparison. Second Wind's BirdLens calls out Merlin's "simple identification" directly in its own copy — a bold move at zero reviews against 112,839, and one that only works if the app underneath genuinely earns the comparison.
• A generic "AI scan and identify" template isn't a bird-specific opportunity — it's a crowded template already reskinned for feathers, eggs, plants, and rocks. The same publishers (Manuel Worlitzer, Mobile Aplicaciones SL, Sergii Nesterenko) run near-identical listings across several nature-identification niches at once.
• Check Google Trends before assuming a spring launch window is still open in September. Both "bird identifier" and "merlin bird id" have fallen roughly 75% from their May peak — several of the apps in the tables above only shipped after that decline had already started.

Chart positions, search ranks, bundle identifiers, and Google Trends data pulled live from the US, UK, German, and French App Stores via Pumf.it on September 25, 2026. Rankings, ratings, and review counts reflect a single snapshot and will shift as charts and listings update. This is a read of public App Store data — bundle identifiers and developer site domains are visible in each app's own listing metadata, not private information — and not a critique of any individual developer named above. Most of the newer, low-review apps here are recent, early-stage releases, not failures.