Desafío del Amor 40 Días resta is an Android app developed by REDhtv that provides a challenge for couples and marriages facing crises or looking to improve their relationship. The app contains hundreds of Bible verses adapted for couples and marriages, advice, marital guidance, and more. The app offers a series of recommendations that users must follow for 40 days to work on their relationships. Even if you are not married and want to improve your relationship with your partner, this app is for you. The challenge provides a clear way out of the darkness to give your relationship a new beginning. The daily challenges are designed to revive love and enjoy the company of each other. The app offers a path to recover your marriage, and if you are committed to completing this 40-day challenge, it could change your life and marriage for the better.