**9. Conclusion**

In this article, we gave an overview of the various open-source software tools that are available for modeling photovoltaic (PV) cells used in wearable applications. In total, we reviewed eighteen different software programmes. According to the findings of our investigation, the various simulation technologies delivered a variety of outcomes. This was owing to the fact that they used different approaches to the problem of solving the semiconductor equations. In spite of this, we came to the conclusion that PC1D and SCAPS-1D is the best accurate non-commercial tool for use in wearable applications. It has a straightforward operation technique, a friendly dialog box, extremely quick simulations at no additional expense and support for multi-junction solar cells. This study also includes a list of helpful references and internet connections for the photovoltaic community. These references and sites might be of use when choosing the best simulators for acceptable solar cells. This chapter may be useful for early career researchers, professional programmers and seasoned researchers in the field of solar cell simulation in the process of constructing a variety of various innovative solar cell simulators.
