Bird Codes vs Big Year Birding ABA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bird Codes
Quickly look up and learn four-letter alpha codes for bird species. This reference tool helps birders speed up field notes and eBird checklist entries by providing a fast way to find abbreviations used in ornithology.
- Search by bird name
- Search by alpha code
- Lookup for 2078 species
- Uses Pyle and DeSante (2003) system
- Speed up field notes
- Faster eBird checklist entry
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Are you looking for a way to speed up your field notes so you can focus on actually looking at birds? Do you see birders using codes for birds on listservs and want to look them up? Do you want to enter your eBird checklists faster? Alpha codes are four letter abbreviations assigned to bird species as a quick way to refer to them. These codes are commonly used in field notes to quickly record sightings and other situations where writing down the entire species name is impractical. This app allows you to search and learn the alpha codes created using the Pyle and DeSante (2003) system which defines alpha codes for all 2078 species recorded in the AOU (American Ornithologists’ Union) area. You can quickly search by either the birds name or by the alpha code.
Big Year Birding ABA
Easily record bird sightings in the field with location, date, and time automatically captured. Discover local birds, view recent sightings nearby, and export your data. Works offline and includes a comprehensive database of North American species.
- Automatic GPS location, date, and time recording
- Comprehensive database of North American birds
- Discover local birds by location and month
- View and navigate to recent nearby sightings
- Offline functionality
- Create eBird upload files
- Add personal photos and notes
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Big Year Birding gives birders—from beginners to serious listers—a fast, easy way to record, organize, explore, and share their bird sightings. Whether you’re doing a Big Year, participating in a Christmas Bird Count, traveling to a new birding destination, or simply keeping track of the birds in your backyard, Big Year Birding makes logging your sightings quick and easy. **A Vastly Improved Birding Experience** Big Year Birding features a completely updated and vastly improved user interface designed to make recording birds in the field faster and more intuitive than ever. Spot a bird? Tap Add Sighting and Big Year Birding can automatically record the date, time, and GPS location, including city, state, and country. Your sightings can be displayed on a map or browsed in sortable lists. Start typing a bird’s name and quickly select the species you’ve seen. Add a count, comments, identification by ear, sex, public or private location, and other useful details. **Built for eBird** Big Year Birding works seamlessly with eBird. Import species information from eBird and easily export your sightings in an eBird-compatible format, making it simple to move observations from Big Year Birding into your eBird account. You can also explore recent eBird sightings near your current location or another location you choose. Browse nearby reports by species, location, or date, see sightings plotted on a map, and get directions to where a bird was reported. **Designed for Birding in the Field** Big Year Birding continues to be useful even when you’re birding in remote areas without an internet or cellular connection. The app includes North American bird species recognized within the ABA region, along with numerous rare and accidental species and birds added with the expansion of the ABA Area to Hawaii. Each species can include a reference photo, and you can add your own photographs to your sightings. Links to resources such as Cornell and Wikipedia provide additional information when an internet connection is available. **Your Lists, Your Way** Big Year Birding is highly customizable. View and organize your sightings by date, location, or species. Filter your records to show particular dates or locations, or display unique species only. With just a few taps, you can review your: • Life List • Year List • State List • Previous years • Individual locations and trips • Complete sighting history You can also export sightings—or selected subsets of sightings—to another device running Big Year Birding, making it convenient to use an iPhone in the field and an iPad at home or to share lists with family and friends. Share your sightings through text, email, social media, or export them to eBird. Created by birders for birders, Big Year Birding puts your sightings, lists, maps, local bird information, and eBird tools together in one place—so you can spend less time managing your records and more time birding.
Screenshots
Verdict
The clearest difference is rating: Bird Codes at 4.8 against Big Year Birding ABA's 4.0. Bird Codes also leads on review sentiment (90% vs 67%) and ratings volume (98 vs 4). Big Year Birding ABA's advantage is update cadence (monthly vs every 3 months). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bird Codes holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Bird Codes has 98 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 90% of Bird Codes's written reviews are positive against 67% of Big Year Birding ABA's.
Bird Codes ships an update every 3 months, Big Year Birding ABA monthly. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.
| Parameter | Bird Codes | Big Year Birding ABA |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (98 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 90.5% of reviews — better | 66.7% of reviews |
| Number of ratings | 98 — better | 4 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Nemesis Code | PVI Maine LLC |
Customer experience
Bird Codes
Big Year Birding ABA
Bugs and requests
Bird Codes
Reported bugs
2 issues- App won't open on latest iPhone
- Stutters and slow to respond
Requested features
5 requests- Update app regularly
- Add new US birds (vagrants)
- Reflect taxonomic splits/lumps/renames
- Display species in conflict when invalid code entered
- Update for larger screens
Big Year Birding ABA
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bird Codes
No in-app purchases
Big Year Birding ABA
No in-app purchases
Questions
Is Bird Codes free?
Is Big Year Birding ABA free?
Which has better reviews, Bird Codes or Big Year Birding ABA?
Do Bird Codes or Big Year Birding ABA have ads?
Which is updated more often, Bird Codes or Big Year Birding ABA?
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