Birdata vs Co
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Birdata
This app allows volunteers and researchers to easily enter bird survey data directly from their mobile devices in the field. It provides basic reporting statistics and contributes to vital conservation efforts and reports on Australia's bird populations.
- Field data entry
- Basic reporting statistics
- Supports structured monitoring
- Can be used for birding lists
- Contributes to conservation reports
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Originally developed in 2005, the Birdata website provided an online platform for volunteers and researchers to enter bird survey data and gain feedback about their surveys. This major revamp of Birdata has allowed us to offer this critical conservation tool in the form of a handy, easy-to-use app. The Birdata mobile app is intended to facilitate simple data entry in the field on mobile devices and provides basic reporting statistics. Visit the Birdata web portal (http://birdata.birdlife.org.au) for extended reporting and data management functionality. Analysis of structured monitoring surveys in Birdata feeds directly into the State of Australiaβs Birds report series. These reports are the go-to guide on the status of Australiaβs bird populations, designed to inform decision making on land management, and direct conservation and policy that affects Australiaβs birds and biodiversity. Can you use it for Birding lists? Yes. Birdata is primarily a tool for structured monitoring, however you can use Birdata to enter and store birding trip lists (e.g. bird lists which are collected over expanded areas without conforming to scientific standards). Please ensure that data such as this is coded as βBird Listβ in the βSurvey typeβ field on the details page.
Co
This app connects young Australians with local conservation events like tree planting and cleanups. Discover volunteer opportunities, join community groups, and track your positive environmental impact. It's designed to make environmental action accessible and rewarding.
- Find local conservation events
- Join volunteer Collectives
- Track conservation impact
- Earn achievements
- Community chat features
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Co-Exist connects young Australians (18-30) with hands-on conservation events in their local area. Join tree plantings, shore cleanups, nature walks, camp outs, and more... organised by volunteer-led Collectives across Australia. Find events near you, join a Collective, track your conservation impact, earn achievements, and chat with your community. Whether you're planting your first tree or leading a land regeneration project, Co-Exist makes it easy to do good and feel good.
Screenshots
Verdict
The clearest difference is review sentiment: Co at 100% against Birdata's 36%. Co also leads on update cadence (every 2 days vs monthly) and monetization model (free vs ad-supported). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Birdata ships an update monthly, Co every 2 days. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.
| Parameter | Birdata | Co |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 35.7% of reviews | 100.0% of reviews β better |
| Update frequency | Monthly | Every 2 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free β better |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 14.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 44 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | BirdLife Australia Ltd. | Ecodia Code |
Customer experience
Birdata
Co
In-app purchases
Birdata
No in-app purchases
Co
No in-app purchases









