Comparison

Zooniverse vs Project FeederWatch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Zooniverse

Participate in real scientific research by classifying data for projects across various disciplines. Contribute to discoveries and datasets that advance knowledge, all from your mobile device. This platform connects volunteers with professional researchers for impactful citizen science.

Highlights
  • People-powered research platform
  • Volunteer opportunities
  • Access to mobile-friendly projects
  • Push notification updates
  • View publications
  • Contribute to scientific discoveries
Features
Read full description

The Zooniverse is the world’s largest and most popular platform for people-powered research. This research is made possible by volunteers—hundreds of thousands of people around the world who come together to assist professional researchers. Our goal is to enable research that would not be possible, or practical, otherwise. Zooniverse research results in new discoveries, datasets useful to the wider research community, and many publications. The Zooniverse Mobile App provides push notification updates about our projects, as well as access to our most mobile-friendly projects and publications.

About

Project FeederWatch

Easily report bird sightings from your feeder for scientific research. Track your statistics, access past counts, and learn about local feeder birds. Contribute to a large database that aids conservation efforts.

Highlights
  • Report winter bird sightings
  • Track sighting statistics
  • Access past count archives
  • Contribute to bird population database
  • Discover best food and feeder types
  • Identify and learn about feeder birds
Features
Read full description

Do you feed birds? You can report what you see for science. Project FeederWatch, a joint project of the Cornell Lab of Ornithology and Birds Canada, monitors winter feeder-bird populations in North America. The FeederWatch Mobile App is a new way for Project FeederWatch members to contribute their bird counts. Sign in to: •Report birds that visit your count site in winter (US and Canada only) •Track your sighting statistics in real time •Access your archive of past counts from all years •Contribute to North America’s largest database on feeder birds •Find out what food and feeder types work best for the birds overwintering near you •Identify and learn about feeder birds FeederWatch Mobile automatically syncs with the web version for seamless multi-platform support. Your data become immediately available for scientific research, education, and conservation. Thank you for helping birds!

Screenshots

Zooniverse4 screens
Project FeederWatch4 screens

Verdict

The call

The clearest difference is rating: Zooniverse at 3.7 against Project FeederWatch's 3.0. Zooniverse also leads on review sentiment (59% vs 33%) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Zooniverse holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 38 and 68 respectively. Written reviews point the same way: 59% of Zooniverse's written reviews are positive against 33% of Project FeederWatch's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

Scorecard3 real differences · 7 level
Zooniverse versus Project FeederWatch: the parameters behind the verdict, then further details
ParameterZooniverseProject FeederWatch
PriceFreeFree
Rating3.7 (38 ratings) — better3.0 (68 ratings)
Positive reviews58.8% of reviews — better33.3% of reviews
Number of ratings3868 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size50 MB63 MB
Age rating4+4+
DeveloperZooniverseCornell University

Customer experience

Zooniverse

All ratings37 ratings
Positive70.3%
Neutral5.4%
Negative24.3%
Written reviews34 reviews
Positive58.8%
Neutral11.8%
Negative29.4%

Project FeederWatch

All ratings68 ratings
Positive41.2%
Neutral13.2%
Negative45.6%
Written reviews45 reviews
Positive33.3%
Neutral17.8%
Negative48.9%

Bugs and requests

Zooniverse

Not enough reviews yet to summarise bugs or requests.

Project FeederWatch

Reported bugs

40 issues
  • Birds saved then disappear
  • Counts get lost
  • Entries not saved consistently
  • Part of data not recorded
  • App deletes counts
Show 35 more
  • App freezes/hangs regularly
  • Connection fails repeatedly
  • App is slow to respond
  • Opens to a blank black screen
  • App doesn't recognize submitted through browser
  • Entering total observation doesn't work
  • Freezes after entering most data
  • Frequent freezes and server problems
  • App freezes when coming up
  • App freezes frequently on iPad Pro
  • Forced to close and reload app
  • No way to enter data offline
  • App freezes after using for 2 minutes
  • Login problem fixed but causes freezing
  • Login fails, incorrect password/account not activated
  • Cannot alter/fix incorrect bird count
  • Cannot delete sightings
  • Cannot zero out a bird count
  • Account not activated message
  • Latest update doesn't work
  • Server doesn't want to connect
  • App doesn't connect
  • Screen goes all black
  • Logins become a nightmare for months
  • App goes to a totally black screen after appearing to be launching
  • Lost bird count due to black screen lock up
  • Regularly fails to recognize login
  • Zero observations reported initially
  • Cannot log in, account not activated
  • App doesn't work at all after update
  • App directs to log in on website, but still doesn't load data
  • Can't enter dates correctly
  • App doesn't report a problem with version, but newer version exists
  • Repeatedly freezes to the point of needing to power off/on
  • Froze if left open too long

Requested features

19 requests
  • Fix data loss issues
  • Improve app stability
  • Resolve login problems
  • Add offline data entry
  • Provide taxonomic sort option
Show 14 more
  • Enable data entry by alpha code
  • Fix blank black screen on launch
  • Allow alteration/deletion of incorrect counts
  • Add French language version
  • Improve iPad functionality
  • Make app more robust for all users
  • Ensure consistent data saving
  • Fix server connection issues
  • Update app more frequently
  • Improve user interface for better screen utilization
  • Fix issues with switching between apps
  • Allow editing of submitted counts
  • Improve handling of large counts
  • Ensure all species counts are saved

In-app purchases

None

Zooniverse

No in-app purchases

None

Project FeederWatch

No in-app purchases

Questions

Is Zooniverse free?
Zooniverse is free to download, with no in-app purchases.
Is Project FeederWatch free?
Project FeederWatch is free to download, with no in-app purchases.
Which has better reviews, Zooniverse or Project FeederWatch?
Zooniverse is rated higher. Zooniverse averages 3.7 out of 5 from 38 ratings, while Project FeederWatch averages 3.0 from 68 ratings.
Do Zooniverse or Project FeederWatch have ads?
Neither Zooniverse nor Project FeederWatch shows ads.
Which is updated more often, Zooniverse or Project FeederWatch?
Zooniverse ships an update every 2 months, and Project FeederWatch every 2 months. Most recently, Zooniverse was updated on October 24, 2026 and Project FeederWatch on October 23, 2026.

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