Comparison

Birdathon vs IELTS Collocation PRO

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

Head to head
About

Birdathon

This app helps birdwatchers create and organize detailed checklists of their observations. It automatically records time and location, allowing for easy editing and customization. Users can visualize their sightings on maps, add field notes, and export data for sharing or further analysis.

Highlights
  • Observation-centric checklists
  • Automatic time and location recording
  • Customizable maps with boundary overlays
  • Field notes for additional observations
  • Multiple checklist sorting options
  • Data export to CSV and other formats
  • Create checklist templates
Features
Read full description

Birdathon is an observation-centric tool for creating birding checklists. It helps you organize your checklists and share them with others. Use Birdathon in the field to quickly record whether and where a bird is seen or heard and the number observed. The time and location of each observation is automatically recorded. You can adjust the location, time entries and the count of birds observed at any time to ensure your records are accurate. You can add breeding codes to your observations. Checklist maps display the locations of your observations. You can overlay county boundaries for every US state. You can add a range circle such as a 5MR (5-mile Radius) to your maps. You can import and overlay custom kml/kmz files onto your maps. An Overview feature lets you see your combined observations for any time period, and displays a map showing any boundaries you have selected, so you can utilize the map feature even when you are not actively checklisting. You can export Overview data into a csv text file or create a new checklist template from the Overview. Your checklists can be viewed in taxonomic order, alphabetically, by rarity or as a timeline of species. You can enrich your checklist with field notes and add observations such as mammals, butterflies, wildflowers, etc., to make it a more complete record of your experience. You can organize your checklists into categories such as Day List, Year List, County List, Life List, etc., and assign color themes to your lists. Bird species may be added and deleted from your lists at any time. You can create new checklist templates from your previous lists or import templates created by others. You can change which template is being used. You can import text files into Birdathon, making them into templates or new checklists. Different export options for your checklists allow you to import into eBird or another copy of Birdathon. The bird species source data and other resources used in this app come from the following sources: AviList, a unified global checklist of birds, is the core data set used for Birdathon. https://www.avilist.org. Some data has been integrated from the following sources: The eBird/Clements checklist of birds of the world (https://www.birds.cornell.edu/clementschecklist/download/), the American Ornithological Society's (AOS) Checklist of North and Middle American Birds (https://checklist.americanornithology.org), and the American Birding Association's (ABA) checklist of North American Birds (https://www.aba.org/listing-taxonomy/) Alpha codes come from The Institute for Bird Populations’ Standardized 4- and 6-letter Bird Species Codes. https://www.birdpop.org/pages/birdSpeciesCodes.php. County boundary data is from the United States Geological Survey (USGS) TIGER/Line 2019 Shapefiles found on the United States Census Bureau's website at https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.2019.html. Boundaries should be used as general guidelines and not be considered precise. Note especially where county boundaries follow creeks, rivers, ridge lines and other natural features, and so are of much finer resolution than can be shown on Birdathon’s maps. California breeding bird atlas blocks come from the California Bird Atlas, https://www.californiabirdatlas.org. California Bird Atlas logo and breeding code descriptions used with permission.

About

IELTS Collocation PRO

Enhance your English vocabulary for IELTS exams by learning essential word pairings. This app focuses on collocations, which are crucial for achieving higher scores in both writing and speaking sections.

Highlights
  • Learn essential IELTS collocations
  • Improve writing vocabulary
  • Boost speaking fluency
  • Offline access
  • Understand collocation patterns
  • Practice with example sentences
Features
Read full description

● IELTS Collocation: Learning collocations are highly recommended - Some of the most important vocabulary needed for IELTS writing are collocations. These are essential when expanding your vocabulary. Basically, collocations are 2 or 3 words that commonly go together and sound just right to a native speaker. For some tips on building your vocabulary take a look at this application. - If you do not know how to use collocations then they will sound or look ‘wrong’ to a native speaker . ● Why are collocations so important? - In the marking criteria in IELTS, you are marked on Lexical Resource (vocabulary). You will be marked on the way you use collocations in the writing section, mainly essays. Here is what it says in the Public Band Descriptors about Writing task 2 Band 7 - Not only are collocations in IELTS important for writing, but they are useful in the speaking test also. They give your speech a smooth natural flow, which if used well, can help you get a Band 7 or more in the speaking test. You have to know how to use them correctly though. ● How do I learn collocations? - When you learn new words you must learn the surrounding words or the matching words that help it collocate. Do not just memorise words on their own. Collocations are like chunks of language and there are various patterns to these. - The best way to learn collocations is through reading, listening and making your own sentences. I advise making a vocabulary book where you write out example sentences. I do not advise making word lists because you must know how collocations work in the surrounding sentence. These also have to be reviewed regularly and put into practice. ● There are quite a few patterns such as: - Verb + Noun - Verb + Adverb - Adjective + Noun - Adverb + Adjective - Noun + Noun - Collocations with ‘have’ or ‘take’ The app is free and support OFFLINE. It'll perfect for English learner.

Screenshots

Birdathon4 screens
IELTS Collocation PRO4 screens

Verdict

The call

The clearest difference is price: Birdathon at Free against IELTS Collocation PRO's $8.99. Birdathon also leads on review sentiment (100% vs 81%). IELTS Collocation PRO's advantage is ratings volume (662 vs 15) and iOS requirement (10.3 vs 16.1). On rating, update cadence, ads and in-app purchases 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

Birdathon is free to download; IELTS Collocation PRO costs $8.99 up front. Birdathon sells 4 one-off in-app purchases and IELTS Collocation PRO sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Birdathon against 4.8 for IELTS Collocation PRO. That said, the two scores are not equally well evidenced: IELTS Collocation PRO has 662 ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 100% of Birdathon's written reviews are positive against 81% of IELTS Collocation PRO's.

UpkeepUpdate frequency

Birdathon ships an update every 4 months, IELTS Collocation PRO every 3 months. The most recent releases landed on September 19, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 5 level
Birdathon versus IELTS Collocation PRO: the parameters behind the verdict, then further details
ParameterBirdathonIELTS Collocation PRO
PriceFree — better$8.99
Rating4.7 (15 ratings)4.8 (662 ratings) — better
Positive reviews100.0% of reviews — better80.8% of reviews
Number of ratings15662 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.110.3 — better
Further details — not scored
Size192 MB185 MB
Age rating4+4+
DeveloperBarry Langdon-LassagneNguyen Thi Hoai Thu

Customer experience

Birdathon

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews11 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

IELTS Collocation PRO

All ratings662 ratings
Positive93.7%
Neutral3.5%
Negative2.9%
Written reviews52 reviews
Positive80.8%
Neutral7.7%
Negative11.5%

Bugs and requests

Birdathon

Not enough reviews yet to summarise bugs or requests.

IELTS Collocation PRO

Reported bugs

6 issues
  • Radio feature not operational
  • App non-functional without internet connection
  • Premium version not recognized after update
  • Ads continue to display for premium users
  • Study Centre doesn't show correct answers for wrong responses
Show 1 more
  • Cannot delete recents from app

Requested features

7 requests
  • Alphabetical categorization of words
  • Word count numbering system
  • Collocation examples for search terms
  • Offline functionality
  • Ability to delete recent search history
Show 2 more
  • Dictionary integration
  • Correct answer display in Study Centre tests

In-app purchases

4 purchases

Birdathon

One-time4
  • Good Tip$0.99
  • Great Tip$1.99
  • Amazing Tip$2.99
Show 1 more
  • Incredible Tip$4.99
1 purchases

IELTS Collocation PRO

One-time1
  • Premium version$8.99

Questions

Is Birdathon free?
Birdathon is free to download, with in-app purchases available.
Is IELTS Collocation PRO free?
IELTS Collocation PRO costs $8.99, and also offers in-app purchases.
Which has better reviews, Birdathon or IELTS Collocation PRO?
IELTS Collocation PRO is rated higher. Birdathon averages 4.7 out of 5 from 15 ratings, while IELTS Collocation PRO averages 4.8 from 662 ratings.
Do Birdathon or IELTS Collocation PRO have ads?
Neither Birdathon nor IELTS Collocation PRO shows ads.
Which is updated more often, Birdathon or IELTS Collocation PRO?
Birdathon ships an update every 4 months, and IELTS Collocation PRO every 3 months. Most recently, Birdathon was updated on September 19, 2026 and IELTS Collocation PRO on September 23, 2026.

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