# Bird Data vs ABA/AOU Bird Codes

The clearest difference is price: Bird Data at Free against ABA/AOU Bird Codes's $0.99. ABA/AOU Bird Codes's advantage is rating (5.0 vs 3.0) and in-app purchases (none vs 4). On ratings volume, update cadence, ads and device support there is nothing between them.

Bird Data is free to download; ABA/AOU Bird Codes costs $0.99 up front. Bird Data sells 4 one-off in-app purchases. ABA/AOU Bird Codes asks for nothing beyond the download.

ABA/AOU Bird Codes holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 20, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Bird Data | ABA/AOU Bird Codes |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/bird-data/id1435622317/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/abaaou-bird-codes/id1523235152/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Paid |
| Size | 19 MB | 22 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tom Friedel](https://appshunter.io/developer/1330245790) | [Schechter Natural History LLC](https://appshunter.io/developer/1489836176) |

## What reviewers say

### Bird Data

[App page](https://appshunter.io/ios/app/bird-data/id1435622317)

This app consolidates multiple regional bird field guides into a single application. It offers scientific information, distribution maps, photos, and sounds for numerous bird species. Users can also access eBird data and record bird sounds for identification.

**Highlights:** Consolidated regional bird guides, Scientific information and distribution maps, Photos and sounds for most species, eBird Hot Spot and sighting database integration, Sound recorder for field recordings, Taxonomy and native language navigation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $7.99 (USD) Donation | $7.99 | one-time |
| $19.99 (USD) Donation | $19.99 | one-time |
| Peter Boesman Recordings | $28.99 | one-time |
| $49.99 (USD) Donation | $49.99 | one-time |


### ABA/AOU Bird Codes

[App page](https://appshunter.io/ios/app/abaaou-bird-codes/id1523235152)

This app provides a quick reference for ornithological bird codes, used in data collection and field notes. It allows users to search and sort by common name, scientific name, or code, and toggle between ABA and AOU bird lists. Includes USGS species numbers and banding sizes.

**Highlights:** Quick bird code lookup, Sort by common/scientific name or code, Toggle ABA/AOU bird lists, USGS Species Numbers, Banding Sizes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Bird Data free?

Bird Data is free to download, with in-app purchases available.

### Is ABA/AOU Bird Codes free?

ABA/AOU Bird Codes costs $0.99, with no in-app purchases.

### Which has better reviews, Bird Data or ABA/AOU Bird Codes?

ABA/AOU Bird Codes is rated higher. Bird Data averages 3.0 out of 5 from 1 ratings, while ABA/AOU Bird Codes averages 5.0 from 1 ratings.

### Do Bird Data or ABA/AOU Bird Codes have ads?

Neither Bird Data nor ABA/AOU Bird Codes shows ads.

### Which is updated more often, Bird Data or ABA/AOU Bird Codes?

Bird Data ships an update every 3 months, and ABA/AOU Bird Codes every 3 months. Most recently, Bird Data was updated on September 20, 2026 and ABA/AOU Bird Codes on September 25, 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.*