The app you're referring to is a third-party app that allows users to manage multiple WhatsApp accounts on a single device, as well as provide additional features such as quotes, speech-to-text, and kaomoji. This app is not affiliated with WhatsApp Inc. and is intended for personal use only.
According to the app's description, it offers the following features:
- Dual account: Log in to dual accounts on one device at the same time, or log in to the same account on multiple devices.
- Quotes: Six different scenarios of quotes are provided, which can be saved as wallpapers or shared with friends.
- Speech to text: Improves efficiency and provides text copying.
- Fonts: Various text effects are provided, which can be used to create cool font effects.
- Kaomoji: Cute kaomoji can be used to make chat more interesting and vivid.
- Password lock: Protects privacy with digital passwords to ensure that messages are not being peeked at.
The app also has a disclaimer stating that it is an unofficial tool for WhatsApp Messenger and is developed by an independent developer, not affiliated with WhatsApp Inc.
As for the second part of your question, it appears to be a list of languages supported by WhatsApp, which is a separate app from the one described above.
