WhatsApp Aero is the Modded Version of Official WhatsApp which is a gem in terms of Theming & Most Useful Features.
Here are the few Most Useful Features of Aero WhatsApp

Privacy
You can hide your blue tick, 2nd tick, online information, statuses, listening to sent audio files, "recording...", "writing...".
Mightiness
With the ability to prevent messages from being deleted, even if people receive their messages back, they will not be deleted from you.
Themes
WP Aero, which hosts over 3000 themes, you can instantly download the theme you want or you can make your own themes professionally.
Logs
Find out who's been online & offline, who changed their profile picture and status.
Enhanced Media
WP Aero lets you share up to 700 MB of video and 50 MB of pictures.
Lock
WP Aero lets you take advantage of enhanced locking options to keep your chats secure until fingerprints.
Customize
WP Aero has more fonts, bubble styles, tick styles and various personalizations than any other WP mods.
Support
You can find immediate answers to your questions and offer suggestions from our Telegram group and WP Support number. The required details can be found in WP Aero > Support.
Aero Widget
Thanks to this widget that comes with WP Aero, you can access the Aero Mod page and profile without entering WP, make yourself online & offline, see your status and name.
Emojis
You can choose between stock WP Emojis, Facebook Emojis, Emoji One V3 Emojis, Android Nougat Emojis and Android Oreo Emojis.
Languages
WP Aero; It supports Turkish, Azerbaijani, Arabic, English, Espanol, Italian, Portuguese (Brazilian), German, Indonesian, Marathi, Bahasa Malaysia.
Media Hiding
With WP Aero, you can hide all incoming and outgoing videos, pictures, and GIF files from your gallery, and view them only from WP.