According to the International Continence Society (ICS), overactive bladder (OAB), usually accompanied by increased urination during the day or nocturia, is defined as a serious symptom of urinary incontinence that occurs without urinary tract infection or other diagnosable disease. The prevalence of OAB ranges from 12-22% in Europe and 16-17% in the USA. According to a comprehensive study conducted in Turkey in 2014, the prevalence of urgent urinary incontinence, which is mostly seen in individuals diagnosed with OAB, was reported as 29.3%. Although the prevalence of OAB is similar in men and women, various symptoms of OAB can be seen more in women due to anatomical and physiological differences in the lower urinary tract. OAB affects an individual's daily life, including work, social interactions, sleep patterns, and sexual functions. In studies, it has been reported that women diagnosed with OAB tend to increase in sleep disorders, affect normal social activities, decrease sexuality and quality of life, and impair self-esteem. In a study by Juliato et al. (2017), it was reported that arousal, lubrication, orgasm and pain levels increased in women with high urinary symptom severity (according to the ICIQ-OAB score). In the study of Chuang et al. (2019), it was determined that increased urinary symptom severity in women decreased sexual satisfaction and quality of life levels. It is of great importance to choose an effective and treatment method for women diagnosed with OAB. There are 3 types of treatment methods to alleviate OAB symptoms: Pharmacological (second-line treatment), non-pharmacological (first and third-line treatments), and surgical intervention. The American Urological Association (AUA) and Urogynecology Society, Female Pelvic Medicine and Pelvic Reconstruction (SUFU) guidelines recommend that OAB be treated step by step, starting with the least invasive treatment. Due to the concern about the side effects of the given drug and the complications of invasive procedures, non-pharmacological interventions are an important part of the treatment of OAB. Antimuscarinics such as solifenacin are used after unsuccessful conservative and behavioral treatments. However, due to the high cost and the presence of side effects (such as dry mouth, headache, constipation and visual irregularity), women's compliance with these drugs decreases and consequently limits their use. However, minimally invasive procedures have risks and complications. In addition, the healing process is supported by non-pharmacological methods after minimally invasive treatment. According to the results of the studies, it was reported that 31-40% of women were supported by non-pharmacological treatment method after minimally invasive intervention. Among the non-pharmacological treatment methods for OAB, bladder training is thought to be the most effective. It has been reported that the training, follow-up and continuity of women to reduce their symptoms can increase their quality of life and sexual satisfaction levels. It is thought that due to the cost of the treatments, the problems of compliance with the treatment process, the decrease in sustainability and the limited accessibility of healthcare professionals, bladder training can be used to increase the compliance and sustainability of women to the treatment process by using different methods. It is thought that it can be used to follow and maintain the training given with the user interface with mobile applications. Therefore, it is important in terms of patient satisfaction and sustainability as well as reducing the cost of treatment. The mobile application the investigators will develop will be an educational tool in the digital environment that allows nurses to communicate with patients, follow the treatment process and enable women to be active in process management. It is aimed to ensure continuity by optimizing the individualized care and well-being of women in line with the results, and accordingly, to minimize the complications that may occur as a result of other treatment methods. Therefore, the effect of the mobile application-based training and notifications the investigators will develop on the quality of life and sexual satisfaction levels in women will be evaluated.