Fast Send is a free iPhone app developed by ebrahim aldakhil in the Social & Communication category, specifically under the subcategory of social networking.

Often, we find ourselves wanting to communicate through WhatsApp with a contact that is not saved in our address book. In such cases, we are required to save the number as a contact, even if we do not wish to do so. This inconvenience is not favored by many users.

However, with Fast Send, you can find the perfect solution. This app allows you to communicate with any number without the need to save it in your contacts. Simply open the app, enter the number, and tap on "Start WhatsApp Chat". WhatsApp will then open with the same number, quickly and easily.

But that's not all. Fast Send also allows you to keep a record of the numbers you have previously communicated with in the "Operations Log" section. This way, you can easily reconnect with them at any time without having to request the number again.