If you're looking for an app to record messages for loved ones, ContinYou is a good option. The app is geared for people with terminal illnesses, military service or hazardous work who want to leave a more personal message for those who'll come after. You can record or upload messages for specific dates, and the app stores them securely. It also can turn your content into interactive AI-generated characters for follow-up communications.
Another option is HereAfter, an interactive memory-sharing app that lets you record and share stories and memories with family members. You can record interviews, add photos and set up a conversational interface so family members can ask questions and hear your responses. The app offers several subscription tiers and a 14-day free trial, so it's relatively affordable and easy to try.