Want to join the global prayer movement? Operation World (OW), the definitive global prayer handbook, has been used by more than a million Christians to pray for the nations. Now as a mobile app you can receive reminders to pray for the “country of the day,” research statistics on each country and read the in-depth prayer request and praise reports given for each country of the world.

OW is widely regarded as the definitive volume of prayer information about the world and is the recipient of the ECPA Gold Medallion Award for Excellence in Evangelical Christian Literature.

OW has had seven editions published. The most recent is from 2010, which is a complete update of the 21st century edition, released in 2001. The previous edition was published in 1993. The original edition was produced in 1964, from South Africa, and was only 32 pages of basic information about 30 countries.

OW has been translated into several other languages: German, Spanish, Portuguese, French, Korean, Chinese, Russian, and in part into Indonesian and Italian. The cumulative number of copies printed in all languages exceeds 2 million. The 7th edition was released in October of 2010.

OW listed in Christianity Today's The Top 50 Books That Have Shaped Evangelicals, Landmark titles that changed the way we think, talk, witness, worship, and live.

What's New

Version 1.4.0

Our new minor release improves the speed and performance of the app. We have upgraded various third party libraries, and updated some of statistical information. Enjoy!

Ratings and Reviews

4.8 out of 5

12 Ratings

12 Ratings

Great app!

Counselor In Ohio

Your opinion that it is generally accepted that climate change is caused by humans is far from correct, is not.

Great App


I am so glad that you have this app, but my Chinese friends are asking for it to be translated in Chinese so that they know how to pray for the nations.

What happened?


Discovered the app recently and began using it daily. Then, it quit functioning properly. It no longer allows "I'm praying" or a count of those who are. Any suggestions?

Developer Response

We are truly sorry for problems with the app. Are you still experiencing the issue with the prayer feature? If so, you should uninstall and reinstall the app. This will reset your information. We are also aware of an issue regarding the API server that will occasionally shut off the prayer activity. It usually only lasts for an hour and will start up again. We are looking into it, and will get it fixed as soon as possible.


Johnathan Pulos
39.7 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2017 Operation World


  • Family Sharing

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

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