🆚 Viber vs. Zalo

Viber is a free, cross-platform instant messaging and calling application owned by Rakuten.

It supports text, voice, and video messaging, one-on-one and group calls, end-to-end encryption by default, group chats with up to 250 participants, communities with unlimited members, disappearing messages, custom stickers and GIFs, and low-cost calls to phone numbers through Viber Out.

Zalo is a Vietnamese mobile instant messenger and social media service.

It provides text messaging with images, voice and video calls, status posts, and file sharing, friend discovery by phone number or QR code, reminders and group chats, and integrates mobile payments via ZaloPay and business tools like Official Accounts and Mini Apps.

Popularity

Determined by the number of sites using each technology.

• 🥇 Most popular in Serbia in the Instant Messaging category.
• 🥇 Most popular in Bosnia and Herzegovina in the Instant Messaging category.
• 🥈 Second most popular in Ukraine in the Instant Messaging category.
• 🥈 Second most popular in Belarus in the Instant Messaging category.
• 🥈 Second most popular in Bulgaria in the Instant Messaging category.

• 🥇 Most popular in Vietnam in the Instant Messaging category.
• 🥇 Most popular in the U.S. Virgin Islands in the Instant Messaging category.
• ⭐ 6th most popular in Singapore in the Instant Messaging category.

Top sites

Top-ranked sites that use these technologies.

Compare alternatives

Technologies with similar characteristics.

• Viber vs. WhatsApp
• Viber vs. Telegram
• Viber vs. Line
• Viber vs. Discord
• Viber vs. WeChat

• Zalo vs. WhatsApp
• Zalo vs. Telegram
• Zalo vs. Messenger
• Zalo vs. Line
• Zalo vs. Discord

• Viber technology profile
• Rakuten company profile

• Zalo technology profile