Meta's free messaging and calling app
First principle
People have always wanted to reach family and friends far away. WhatsApp made the phone number the account and took the charge per message and per minute out of texting and calling abroad.
The needs it meets
- Staying in touchCore
- Keeping up with family, friends and colleagues; belonging to a circle.
- Getting things done
- Getting a task done with less time and effort.
Why it wins
- No username and no password, just a phone number: anyone in your contacts who has it is ready to chat, simple enough for grandparents.
- It works on slow connections, and voice notes and groups took the place of texts and long distance calls; in many countries the family, school and neighbourhood groups all live there, so not having it means missing out.
- Messages and calls are end to end encrypted, so not even WhatsApp can read them, which makes private talk feel safe.
- Businesses are there too: order confirmations, support and delivery notices arrive in the same chat list, with no app to install for each shop.
What keeps it ahead
- Network effects
- The more people use it, the more useful it is; everyone is already there.
- Easy start
- Anyone can use it at once, with a reward within seconds.
- Price
- Cheaper than elsewhere, or free.
How it makes money
AdsServes a bigger business
Users pay nothing; businesses pay per message to reach customers and buy ads on Facebook and Instagram that open a WhatsApp chat, and since 2025 the Updates tab, home of Status and Channels, carries ads too.
What a small team can take from it
When Facebook bought it in 2014, WhatsApp had around 30 engineers; it did one thing and kept cutting. Messaging is now locked up by network effects, so copy the restraint, not the product.
This week
- World: top free apps, number 5, in 9 of 10 countriesIndonesia Google Play 1 · Mexico Google Play 1 · India Google Play 2 · Germany Google Play 3 · France Google Play 3 · US Google Play 4
updated 29 October 2026
- Developer
- WhatsApp Inc.
- Category
- App · Social Networking
- Stores
- App Store, Google Play
- First in a list
- 29 October 2026
Sources
This is our analysis and judgement, drafted by an AI agent from the store pages and public sources and read by a person before it went up. Every figure has a source; where there is none, we give no figure. Found a mistake? Write to [email protected].