# Birdathon vs IELTS Collocation PRO

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.

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.

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.

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.

## The numbers

| Metric | Birdathon | IELTS Collocation PRO |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/birdathon/id1211977440/reviews) | **[4.8 (662 ratings)](https://appshunter.io/ios/app/ielts-collocation-pro/id1422950549/reviews)** |
| Number of ratings | 15 | **662** |
| Positive reviews | **100.0% of reviews** | 80.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 192 MB | 185 MB |
| Requires iOS | 16.1 | **10.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Barry Langdon-Lassagne](https://appshunter.io/developer/730758814) | [Nguyen Thi Hoai Thu](https://appshunter.io/developer/1321248741) |

## What reviewers say

### Birdathon

[App page](https://appshunter.io/ios/app/birdathon/id1211977440)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Good Tip | $0.99 | one-time |
| Great Tip | $1.99 | one-time |
| Amazing Tip | $2.99 | one-time |
| Incredible Tip | $4.99 | one-time |


### IELTS Collocation PRO

[App page](https://appshunter.io/ios/app/ielts-collocation-pro/id1422950549)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium version | $8.99 | one-time |

**What reviewers like**

- 👍 Easy to use and user-friendly interface
- 📚 Comprehensive vocabulary learning resource
- 🎯 Excellent for IELTS exam preparation
- 💡 Well-organized and efficient structure
- 🆓 Generous free version available

**What reviewers complain about**

- 🐛 Radio feature not working
- 💰 Premium version lacks differentiation from free version
- 🌐 Requires internet connection to function
- ❌ Missing collocation data for many words
- 🔧 Premium purchase issues with latest updates

**Reported bugs**

- 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

**Requested features**

- Alphabetical categorization of words
- Word count numbering system
- Collocation examples for search terms
- Offline functionality
- Ability to delete recent search history


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*