Comparison

Big Butterfly Count vs ObsIdentify

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

Head to head
About

Big Butterfly Count

Participate in a national butterfly and moth survey by identifying and counting species in your local environment. Your observations contribute to understanding the health of UK wildlife. Features an identification guide and a map to view submitted sightings.

Highlights
  • Butterfly and moth identification guide
  • Count and submit sightings
  • View submitted records on a map
  • Contribute to wildlife research
  • 15-minute nature observation
Features
Read full description

Take part in the UK’s annual Big Butterfly Count with this easy to use and informative app. Spend 15 minutes in nature and help butterflies at the same time. All you need to do is identify and count the relevant butterfly and moth species you spot. Then submit your sightings to help take the pulse of nature. Your records help to show how butterflies are faring in the UK. The app features a beautiful ID guide to help you identify and learn about the 21 species that are the focus of this study. You can also view all of your submitted counts and see everyone's records on the map within the app.

About

ObsIdentify

Instantly identify plants, animals, and mushrooms from photos taken in Europe or the Dutch Caribbean. Track your discoveries, earn rewards, and contribute to scientific research by sharing your observations.

Highlights
  • One-click species recognition
  • Collect wildlife observations
  • Tips for finding new species
  • Earn badges and join challenges
  • Create and share observations with groups
  • Contribute to biological research
Features
Read full description

Recognize nature in one click! Take a photo in Europe or the Dutch Caribbean and find out which species it is. Collect all your wildlife observations in the app. You'll be rewarded with tips to find new species, earn badges, and be invited to join challenges. Create groups with colleagues, family or friends, to share your stunning nature observations. Your observations, and those of others, contribute to biological research and knowledge about nature. Every observation counts! ObsIdentify only recognizes wild animals, plants and mushrooms in Europe and the Dutch Caribbean. Please do not use the app for selfies, people, pets, house or garden plants. The image recognition in ObsIdentify is made possible by millions of observations from thousands of users of Waarneming.nl, Waarnemingen.be and Observation.org. ObsIdentify is a product of the Observation International Foundation, in collaboration with Naturalis Biodiversity Center (The Netherlands) and Natuurpunt (Belgium).

Screenshots

Big Butterfly Count4 screens
ObsIdentify4 screens

Verdict

The call

The clearest difference is rating: Big Butterfly Count at 4.8 against ObsIdentify's 2.0. Big Butterfly Count also leads on review sentiment (77% vs 58%). ObsIdentify's advantage is monetization model (free vs ad-supported). On price, ratings volume, update cadence and ads 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Big Butterfly Count holds the better App Store score, 4.8 against 2.0. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews point the same way: 77% of Big Butterfly Count's written reviews are positive against 58% of ObsIdentify's.

UpkeepUpdate frequency

Big Butterfly Count ships an update monthly, ObsIdentify every 3 weeks. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
Big Butterfly Count versus ObsIdentify: the parameters behind the verdict, then further details
ParameterBig Butterfly CountObsIdentify
PriceFreeFree
Rating4.8 (12 ratings) — better2.0 (5 ratings)
Positive reviews77.1% of reviews — better58.3% of reviews
Number of ratings12 — better5
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size41 MB45 MB
Age rating4+4+
DeveloperButterfly Conservation Trading LtdObservation International

Customer experience

Big Butterfly Count

All ratings12 ratings
Positive91.7%
Neutral8.3%
Negative0.0%
Written reviews83 reviews
Positive77.1%
Neutral6.0%
Negative16.9%

ObsIdentify

All ratings5 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews108 reviews
Positive58.3%
Neutral9.3%
Negative32.4%

In-app purchases

None

Big Butterfly Count

No in-app purchases

None

ObsIdentify

No in-app purchases

Questions

Is Big Butterfly Count free?
Big Butterfly Count is free to download, with no in-app purchases.
Is ObsIdentify free?
ObsIdentify is free to download, with no in-app purchases.
Which has better reviews, Big Butterfly Count or ObsIdentify?
Big Butterfly Count is rated higher. Big Butterfly Count averages 4.8 out of 5 from 12 ratings, while ObsIdentify averages 2.0 from 5 ratings.
Do Big Butterfly Count or ObsIdentify have ads?
Neither Big Butterfly Count nor ObsIdentify shows ads.
Which is updated more often, Big Butterfly Count or ObsIdentify?
Big Butterfly Count ships an update monthly, and ObsIdentify every 3 weeks. Most recently, Big Butterfly Count was updated on October 17, 2026 and ObsIdentify on October 18, 2026.

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