“Each day, a person who eats a vegan diet saves 1,100 gallons of water, 45 pounds of grain, 30 square feet of forested land, 20 pounds of CO2 equivalent, and 1 animal's life.” — Cowspiracy

Climate change, ocean dead zones, fisheries depletion, deforestation, food safety, heart disease, obesity, and diabetes have all something in common: our demand for and consumption of animal products. By eliminating animal products (such as meat, dairy, and eggs) from our diet, we can reduce the amount of harm we inflict on the environment and on ourselves.

By simply entering your veganniversary (the day you became vegan) Cowculator calculates how much water, grain, forested land, CO2 equivalent, and animal lives you have saved by going vegan.

Not vegan yet? Download Cowculator today and learn the difference you can make by going vegan!

What’s New

Version 1.6.3

This release fixes some issues with the Cowculator widget. You might have to enable the widget again. We apologize for the inconvenience.

Please consider taking a moment to rate Cowculator and help spread the vegan message. Apps with a high rating have higher visibility in the App Store. Thank you all for supporting Cowculator.

Ratings and Reviews

4.5 out of 5
165 Ratings

165 Ratings

Sam /r/vegancirclejerk ;) ,

Amazing app!

I love this app! It gives you a clear, concise view into your impact on the environment. ignore the biddies complaining that the app is “rude” or something. activism isn’t friendly! the only reason i’m rating it four stars instead of five is a silly bug i noticed - it asks you to rate CONSTANTLY. every time i close a tab it asks me to rate. fix that and it’s a five star app all the way.

Developer Response ,

Thank you for your review. Our apologies for the overzealous rating pop-up. He is just very eager for your rating, it appears. What you describe shouldn't happen, but we will look into it and update our code where necessary.

RileyMG ,


I don’t understand why a lot of the featured reviews are one star from omnis talking about why they hate veganism. that’s so awkward, i wish we could report reviews on the app store. anyways, i got this app when i first went vegan and i like that i don’t need to keep track of how long it’s been, i can periodically check in and see what i’ve saved. i also like that it tells you your veganniversary! i like simplicity and this app is perfect, no annoying bells and whistles or useless features, just does what it’s designed to do. 10/10, visually appealing and a good motivator

Developer Response ,

Thank you for your kind words. And thanks for being the change.

BuffalonianJohn ,

Figures don’t lie, but liars figure.

Response to devs response:
The numbers were so crazy that your silly app provides that I did google the topic. There is no shortage of information that disputes the bogus data your app provides. You obviously don’t care about confirming that the “Cowculator” provides accurate data. If you wish to look into it you will see this data doesn’t hold up to scrutiny.

If you believe these numbers... buy the app and pretend away.

Last response to developer... did you ever try and get funded for research that goes against the liberal line of thinking? I know people who have... they won’t give money. That’s the reason there is so much “climate change” related research. The government won’t fund research that goes against the agenda. Did you see the recent letter signed by 500 climatologists. No shortage of scientists who rip apart the false studies the government funds. Believe what you want. Makes no difference to me. I bet I enjoy my meals a lot more than the average vegan.

Developer Response ,

You don’t have to believe if you can read. The source of the data is given within the app. I’d love to see different numbers. Can you provide them? Or is a 1-star rating your strongest defense? I guess it is.

In response to the response: That’s your research? You googled it? So you have no data? No peer-reviewed journals? You know the articles trying to debunk Cowspiracy, which you’ve most likely stumbled upon while you were googling for something, are sponsored by the meat industry? Just google it.

Last response: The meat industry funds research that fits their agenda.


Siraprapa Kridakorn
41.5 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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