Comparison

BTO Ringing & NRS Info vs BWP

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BTO Ringing & NRS Info

This app assists bird ringers, nest recorders, and scientists in identifying correct ring sizes and codes for UK bird species. It also provides codes for recording nests, biometrics, condition, status, and habitat information.

Highlights
  • UK bird ring size and code lookup
  • Nest recording code information
  • Biometric and condition recording codes
  • Standard habitat codes
  • Information for full-grown birds and pulli
Features
Read full description

An app to help bird ringers, nest recorders and scientists check the correct ring sizes/codes to use for each bird species ringed in the UK (for both full-grown birds and pulli) and the codes needed to record nests and their contents. The app also includes the codes needed to record biometrics, condition and status information for each bird as well as the standard habitat codes.

About

BWP

This comprehensive reference app provides detailed information on birds of the Western Palearctic. It features extensive data on species, including field characters, habitat, breeding, and behavior, enhanced with illustrations, songs, videos, and maps.

Highlights
  • 1,056 species covered
  • 5,473 illustrations
  • 1,066 songs and calls
  • 916 videos
  • 643 distribution maps
  • Updated taxonomy and new species
Features
Read full description

Birds of the Western Palearctic – BWP – is the definitive reference for everyone with a serious interest in birding and ornithology. Fifteen years ago we published all 11 printed volumes on DVD-ROM. Now we have fully overhauled this renowned BWPi for iOS and macOS. We have refreshed the design, breathed new life into the plates, added a comprehensive video library, integrated unique breeding birds content and updated taxonomy with new species and splits. Comprehensive coverage of every species that regularly occurs in the region, with sections on Field Characters, Habitat, Breeding, Distribution, Population, Movements, Social Pattern and Behaviour, Voice, Food, Plumages, Moults, Measurements and Geographical Variation. The app covers every species known to have occurred within the region, and we will be updating the app as new species occur (latest is Horned Puffin!). BWP integrates with Collins Bird Guide app so that you can switch between the two seamlessly. • 1,056 species covered • 5,473 illustrations • 1,066 songs and calls • 916 videos • 643 distribution maps • 10,176 photos of breeding stages • 1,557 line drawings showing behaviour • 288 life cycle diagrams • 2,446 tables • 37,690 references • 5,250,000 words of text! • Species names are translated into 25 languages The distribution and population data have not been updated since BWP was originally published, and some species have changed significantly since then. Compare species is available on iPad only.

Screenshots

BTO Ringing & NRS Info4 screens
BWP4 screens

Verdict

The call

The clearest difference is price: BTO Ringing & NRS Info at Free against BWP's $35.99. BTO Ringing & NRS Info also leads on review sentiment (100% vs 64%) and iOS requirement (13.4 vs 15.5). BWP's advantage is update cadence (every 2 months vs every 7 months). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

BTO Ringing & NRS Info is free to download; BWP costs $35.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BTO Ringing & NRS Info ships an update every 7 months, BWP every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
BTO Ringing & NRS Info versus BWP: the parameters behind the verdict, then further details
ParameterBTO Ringing & NRS InfoBWP
PriceFree — better$35.99
Rating—5.0 (2 ratings) — better
Positive reviews100.0% of reviews — better64.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.4 — better15.5
Further details — not scored
Size21 MB3.3 GB
Age rating4+4+
DeveloperBTONatureGuides Ltd.

Customer experience

BTO Ringing & NRS Info

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

BWP

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews25 reviews
Positive64.0%
Neutral8.0%
Negative28.0%

In-app purchases

None

BTO Ringing & NRS Info

No in-app purchases

None

BWP

No in-app purchases

Questions

Is BTO Ringing & NRS Info free?
BTO Ringing & NRS Info is free to download, with no in-app purchases.
Is BWP free?
BWP costs $35.99, with no in-app purchases.
Do BTO Ringing & NRS Info or BWP have ads?
Neither BTO Ringing & NRS Info nor BWP shows ads.
Which is updated more often, BTO Ringing & NRS Info or BWP?
BTO Ringing & NRS Info ships an update every 7 months, and BWP every 2 months. Most recently, BTO Ringing & NRS Info was updated on November 1, 2026 and BWP on November 6, 2026.

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