Chapple is the chairman of a marketing agency, he published his first book, "The Sober Survival Guide" in 2019. In 2020, the Sheldon Press imprint of Hodder & Stoughton published his second book, "How to Quit Alcohol in 50 Days: Stop Drinking and Find Freedom". In 2021 Chapple announced his third book, "How to Heal Your Inner Child", to be published by Sheldon Press.