Gematria by Jack is an iPhone application that delves into Hebrew Numerology, known as Gematria. This app allows users to explore connections through the numerical values of words and phrases. Previously a practice reserved for sages and mystics, Gematria is now made accessible to the everyday individual. By entering a number, Hebrew word, or name, users can discover all the words and phrases that equal a specific numerical value. The search results provide citations, full verses (posuk), and English translations for further understanding.

Users can click on a name to access all words and phrases that share an equal numerical value. It's important to note that the English translations provided within the app have not been officially validated. To input Hebrew characters, users need to update their settings to include the Hebrew keyboard.