# Bird Data Database Browser vs ABA/AOU Bird Codes

The clearest difference is price: Bird Data Database Browser at Free against ABA/AOU Bird Codes's $0.99. ABA/AOU Bird Codes's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

Bird Data Database Browser is free to download; ABA/AOU Bird Codes costs $0.99 up front. Bird Data Database Browser sells 2 one-off in-app purchases. ABA/AOU Bird Codes asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on May 15, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Bird Data Database Browser | ABA/AOU Bird Codes |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/abaaou-bird-codes/id1523235152/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Paid |
| Size | 33 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 Database Browser

[App page](https://appshunter.io/ios/app/bird-data-database-browser/id1330327244)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $7.99 (USD) Donation | $7.99 | one-time |
| $19.99 (USD) Donation | $19.99 | 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 Database Browser free?

Bird Data Database Browser 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.

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

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

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

Bird Data Database Browser ships an update every 3 months, and ABA/AOU Bird Codes every 3 months. Most recently, Bird Data Database Browser was updated on May 15, 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.*