There is no definitive answer to this question as there are a variety of tuner apps available, each with its own set of features and capabilities that may be better or worse suited for different users. This article has listed some of the best free tuner VST plugins available on the market, so you can choose the one that best suits your needs. You need to check them out from the list. However, if we had to choose a few from the tuners listed above, our top picks would be Chromatia Tuner, Spiral, and MathAudio Chromatic Tuner due to their accuracy, versatility, and user-friendly interface. These apps offer a variety of features that can help you tune your instrument accurately and quickly. So, whether you're a beginner or an experienced musician, there is sure to be a tuner app that meets your needs.