Tahor: Mikvah Questions is a lifestyle app designed to assist individuals in sending pictures of their Mikvah and Niddah questions to a Rav discreetly. Users can capture images of their cloth using the app's Rabbinically-Approved technology and send them to a Rabbi of their choice. The app promises a quick response from a family purity expert, making the process efficient and convenient for users seeking guidance in matters of ritual purity.

The technology behind Tahor app involves an algorithm utilizing color calibration and white balance technology developed by computer scientists from MIT and the Technion. This algorithm ensures accurate representation of stain colors to the responding Rabbi, enabling them to make determinations remotely in 90% of cases. In the remaining 10%, the Rabbi may request to see the actual cloth in person for a more accurate assessment.