According to GulfNews, the unnamed 32-year-old will also have to pay a 20,000 Saudi Riyal (£3,604) fine for tarnishing the reputation of the man.
The case was filed at the criminal court in Al Qatif in Eastern Saudi Arabia by the man following an argument.
The woman, whose nationality was not mentioned pleaded guilty to ruining the reputation of the Saudi man through the mobile chat app following an argument between them.
Under Article Three of the Saudi Anti-Cyber Crime Law, a person who commits who defames or inflicts damage upon others through the use of various information technology devices "shall be subject to imprisonment for a period not exceeding one year and a fine not exceeding SR 500,000 or to either punishment."