Launched in 2014 after Microsoft bought Acompli, the Outlook app folds mail, calendar, files and contacts into one focused inbox. With so many employers on Microsoft 365, it is the app most office workers actually open to read a payslip or accept a meeting invite on their phone.
Within this atlas it appears in 9 markets: Mexico, South Africa, Argentina, Taiwan, China, Portugal, Austria, Hong Kong, China, Ireland, New Zealand.
Key facts
- Developer
- Microsoft
- Launched
- 2014
- Platforms
- iOS · Android · Web · Windows · macOS
- Category
- Tools
- Official website
- outlook.com
Where it is used
9
Frequently asked questions
5 Q&AWhat is Outlook?
Outlook is a tools app developed by Microsoft and launched in 2014. Microsoft’s mail and calendar. Launched in 2014 after Microsoft bought Acompli, the Outlook app folds mail, calendar, files and contacts into one focused inbox.
Who develops Outlook?
Microsoft. The product launched in 2014 and runs on iOS · Android · Web · Windows · macOS.
In which countries is Outlook popular?
Within this atlas it appears in 9 markets: Mexico, South Africa, Argentina, Taiwan, China, Portugal, Austria, Hong Kong, China, Ireland, New Zealand.
What is the official website of Outlook?
The official site is https://outlook.com.
What kind of app is Outlook?
It belongs to the tools category, alongside 210 other apps in this index.
Sources
Updated 2026-11-12- DataReportal — Digital 2026
- ITU — Statistics
- Official product sites
World Sites & Apps. “What is Outlook? Developer, launch year and countries”. 2026. https://abcvv.com/a/outlook.html