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Collins Bird Guide

by NatureGuides Ltd.

  • Reference
  • Paid
View on the App Store
Rating
4.0
28 ratings · US storefront
Top 95%among 101 Reference apps
Last update
Sep 22, 2026
Version 3.3.1
Size
1,334 MB
Category
Reference
Tracked since
Oct 9, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

‘It’s much more convenient than taking a big book with you...the Collins app is fantastic.’

  • Chris Packham, Metro

‘The Collins Bird Guide app is destined to become a real triumph, the ultimate in field guide apps — and deservedly so.’

  • BirdGuides

The Collins Bird Guide App combines world-class illustrations and comprehensive information with intuitive design to create the ultimate field guide for passionate birders and casual birdwatchers alike. The app is based on the landmark book by Lars Svensson, Killian Mullarney and Dan Zetterström, universally acknowledged as the standard European field guide. This definitive work has been reimagined for iPad and iPhone by birders for birders.

The Collins Bird Guide App provides everything you need to identify a species quickly and learn about it thoroughly. Immerse yourself in the exceptional illustrations, maps, calls and concise text. Use the powerful search filter and curated confusion lists to focus in on a species. The Collins Bird Guide App is an essential companion always to hand on your iPhone, and available to browse in full glory on your iPad.

Features include:

  • 973 species covered - 843 illustrated
  • 3,700+ beautiful illustrations by Killian Mullarney and Dan Zetterström
  • Detailed text covering habitat, range, identification and voice by Lars Svensson
  • Record sightings, location and date with the listing tool
  • Powerful search filter
  • Intuitive design to quickly and easily swipe through species
  • Curated lists of confusable species
  • Over 1,100 carefully selected songs and calls – many by Lars Svensson
  • Select species names from 30+ languages
  • Expertly edited video clips for 811 species in the app (require in-app purchase)
  • Available in English, Swedish, Norwegian, French and German
  • Weighs nothing!

Identify Assist is our brand-new subscription service. Instantly identify species from photos and recordings with cutting-edge AI.

As well as this and the optional video library, the app incorporates British Trust for Ornithology/BirdWatch Ireland/Scottish Ornithologists' Club Bird Atlas 2007–11 mapping data as an in-app purchase, providing the most comprehensive location mapping of any bird guide app.

The latest version of the app requires iOS 17.0 or later.

If you like the app, don’t forget to share the app, rate it and leave a review.

Privacy Policy
natureguides.com/privacy-policy

Terms of Use
apple.com/legal/internet-services/itunes/dev/stdeula/

What’s new

Release notes for the latest version, as written by the developer.

v3.3.1

The Bird of the Day widget now works with tinted home screens, full-screen images can be rotated once more and map keys should be fully visible.

Rank history

Daily position in the Denmark charts. #1 is at the top.

Best rank
#2
Current rank
#3
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

65/100

Not flagged as small & simple

  • Developer size0% · 25

    Developer: 14 apps on the charts

  • Audience size100% · 20

    Ratings: 28

  • App size0% · 10

    Size: 1,334 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #1, 64 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 3.3.1LatestReleased Sep 22, 2026