Coton vs eBird
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coton
Identify cloud types using a comprehensive guide based on the International Cloud Atlas. Learn about their associated weather forecasts, including precipitation and storm probabilities. Explore detailed descriptions and over 120 images to enhance your sky-watching experience.
- Cloud identification by type
- Detailed descriptions
- Weather forecast correlation
- Over 120 cloud images
- Illustrated guide to cloud classification
- Metric/Imperial system setting
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Coton is also on iPad: http://itunes.apple.com/app/id509851679 /!\ Only available in English and French! Coton is a beautiful cloud identification app for your iPhone and iPod Touch. Identify clouds by browsing stunning pictures and detailed descriptions of all the different types of clouds you may spot. Coton relies on the International Cloud Atlas classification, the authoritative book from the World Meteorological Organization. Learn about cloud types and their corresponding weather forecast including chances of rain and storm. Try to figure out the weather of the day, just by looking at the sky! Coton includes: - 33 cloud index cards for the main cloud genera, species, varieties and special clouds - a gallery containing more than 120 awesome pictures - an illustrated guide which simply explains what is a cloud and how clouds are classified - a chart of the 10 cloud genera - a setting allowing you to switch between metric and imperial measurement system The only thing you'll have to do is looking up... Enjoy your spottings! Just remember: "It is rare that a cloud gets the shape of a cloud." Ylipe
eBird
Easily record bird sightings in the field and contribute to a global database for scientific research and conservation. This app offers offline functionality, customized checklists, and GPS-enabled location plotting.
- Record bird observations globally
- Global taxonomy and local common names
- Location and time-based checklists
- Rare species flagging
- Offline functionality
- GPS location plotting
- Trip and day list tracking
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eBird Mobile makes it easy to record the birds you see in the field, and seamlessly link these observations with eBird--a global online database of bird records used by hundreds of thousands of birders around the world. This free resource makes it easy to keep track of what you see, while making your data openly available for scientific research, education, and conservation. eBird Mobile is the only app that passes information directly from the iOS device to your eBird account on the web. Features - Enter bird observations from any location around the world. - Full global taxonomy based on The Clements Checklist of Birds of the World. - Common names available in local languages (e.g., Portuguese names in Brazil or in Portugal). - Checklists customized for your location and time of year, showing most likely species based on eBird data. - Rare species flagged during data entry and on the checklist. - "Record as you go" functionality for incremental list keeping and counting while birding. - GPS enabled location plotting to ensure accuracy. - Map tools that enable selecting from hundreds of thousands of eBird "Hotspots." - Full offline functionality, enabling use in places with limited or no Internet connection. - Trip and Day list functionality that makes it easy to keep track of your species list on a particular outing. - Support for iPhone, iPad, and iPod Touch. - Entire app translated to German, Mandarin, French, Spanish, Portuguese (Brazil), Turkish, and Dutch.
Screenshots
Verdict
The clearest difference is price: eBird at Free against Coton's $1.99. eBird also leads on update cadence (monthly vs every 5 months) and ratings volume (803 vs 13). Coton's advantage is review sentiment (77% vs 37%) and iOS requirement (8.0 vs 18.0). On ads, in-app purchases, chart position 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
eBird is free to download; Coton costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
eBird holds the better App Store score, 3.8 against 3.5. That said, the two scores are not equally well evidenced: eBird has 803 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 77% of Coton's written reviews are positive against 37% of eBird's, so the app with the better star average is not the one people write more warmly about.
Coton ships an update every 5 months, eBird monthly. Both last shipped on October 13, 2026.
| Parameter | Coton | eBird |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 3.5 (13 ratings) | 3.8 (803 ratings) — better |
| Positive reviews | 76.6% of reviews — better | 36.6% of reviews |
| Number of ratings | 13 | 803 — better |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #93 — better | #155 |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 50 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Etamin Studio | Cornell University |
Customer experience
Coton
eBird
Bugs and requests
Coton
Not enough reviews yet to summarise bugs or requests.
eBird
Reported bugs
5 issues- App crashes when trying to start a new checklist
- Inability to log in or access account
- Inconsistent behavior with bird pack downloads
- Checklist data not syncing across devices
- Explore feature not working as expected
Requested features
5 requests- Add ability to upload photos and audio directly in the app
- Implement alphabetical sorting for checklists
- Improve syncing between app and website
- Add more advanced filtering and search options
- Provide offline access to bird information
In-app purchases
Coton
No in-app purchases
eBird
No in-app purchases






