‎WhatsApp Messenger App

In January 2021, WhatsApp announced a controversial new privacy policy allowing WhatsApp to share data with its parent company, Facebook. However, the WhatsApp privacy policy does not apply in the EU, since it violates the principles of GDPR. In August 2014, WhatsApp was the most popular messaging app in the world, with more than 600 million users. By early January 2015, WhatsApp had 700 million monthly users and over 30 billion messages every day. A message that promises to allow access to their WhatsApp friends’ conversations, or their contact lists, has become the most popular hit against anyone who uses the application in Brazil.
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• Unlike messages in groups or private chats, channels are not end-to-end encrypted.

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• Since the complete roll out of this feature, users cannot check old messages before this period on the Web version anymore.

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• A message that promises to allow access to their WhatsApp friends’ conversations, or their contact lists, has become the most popular hit against anyone who uses the application in Brazil.

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• The app collected data on who the users contacted and how often, and when and how they were using the app.
• In August 2014, WhatsApp was the most popular messaging app in the world, with more than 600 million users.
• In 2016, WhatsApp was accused of copying features from a then-unreleased version of iMessage.

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Platform support

• In July 2017, WhatsApp added support for file uploads of all file types, with a limit of 100 MB.

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• The web client was not standalone, and required the user’s phone to stay on and connected to the internet.

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• As of 2025, the software requires at least Android version 5.0 or iOS version 15.1 respectively.
• The organization reported a massive drop-off in traffic for the blocked services, though the country’s government made no official statements about the block.

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• In April 2023, the app rolled out a feature that would allow account access across multiple phones, in a shift that would make it more like competitors.

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• The service was created by WhatsApp Inc. of Mountain View, California, which was acquired by Facebook in February 2014 for approximately US$19.3 billion.

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On November 14, 2016, WhatsApp added video calling for users using Android, iPhone, and Windows Phone devices. This ability (named multi-device support) began testing in July 2021 and rolled out to all users in April 2023. They link to and sync with WhatsApp actively running on a supported primary phone.

Signal – Private Messenger

Koum updated WhatsApp so that everyone in the user’s network would be notified when a user’s status changed. On June 13, 2013, WhatsApp announced that they had reached their new daily record by processing 27 billion messages. According to the Financial Times, WhatsApp “has done to SMS on mobile phones what Skype did to international calling on landlines”.

About this app

WhatsApp was initially criticized for its lack of encryption, sending information as plaintext. End-to-end encryption was only fully implemented in April 2016 after a two-year process. According to a white paper that was released along with the announcement, WhatsApp messages are encrypted with the Signal Protocol.

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• Linked devices automatically log out after 14 days of inactivity on the primary phone.

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• Sequoia Capital received an approximate 5,000% return on its initial investment.
• In September 2017, security researchers reported to The New York Times that the WhatsApp service had been completely blocked in China.
• WhatsApp has been officially supported for iPads and its iPadOS since May 27, 2025.

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• The company also announced plans to implement reactions, the ability for administrators to delete messages in groups and voice calls up to 32 participants.

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• In November 2020, UPI payments via WhatsApp were initially restricted to 20 million users, and to 100 million users in April 2022, and became generally available to everyone in August 2022.

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WhatsApp Web

On May 18, 2017, the European Commission announced that it was fining Facebook €110 million for “providing misleading information about WhatsApp takeover” in 2014. The idea, he said, is to develop a group of basic internet services that would be free of charge to use – “a 911 for the internet”. This would give them some context for why they are important, and that will lead them to pay for more services like this – or so the hope goes.

Filled with scammers, not a secure app

On October 14, 2021, WhatsApp rolled out end-to-end encryption for backups on Android and iOS. Visual effects also became available, adding visual filters to a user’s video feed. In December 2023, WhatsApp’s “View Once” feature expanded to include voice messages. In August 2022, WhatsApp launched an integration with JioMart, available only to users in India. In April 2018, WhatsApp co-founder and CEO Jan Koum announced he would be leaving the company. Once again, the block was lifted following an appeal, after less than 24 hours.
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Brazil

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It allows users to send text messages, voice messages, and video messages, make voice and video calls, and share images, documents, user locations, and other content. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. As of May 2025, the service had 3 billion monthly active users, making it the most used messenger app.
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Data Linked to You

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This was implemented only on Samsung phones, with plans to expand to Android and iOS “soon”. In July 2017, Tuuri Kasino WhatsApp added support for file uploads of all file types, with a limit of 100 MB. In November 2023, WhatsApp added a “voice chat” feature for groups with more than 32 members. In 2022, WhatsApp added the ability for users to turn off their online status.