Holter Log: Turn your Holter study into a clear digital diary

Hi Product Hunt 👋 I’m George, the developer of Holter Log. I built it to solve a simple problem with Holter monitoring: people are often given a paper diary to record symptoms and activities, but those diaries can be awkward to use, easy to forget, and sometimes run out of space. Holter Log gives you a digital diary on iPhone and Apple Watch so you can record symptoms and activities with the actual date and time while you’re wearing the monitor. Everything stays organized in one chronological timeline, and when the study is finished you can review and export the diary so you have a clear record to bring back with the monitor or share with your healthcare provider. The current version includes: • iPhone + Apple Watch entry • Timestamped symptoms and activities • Study countdown and day tracking • Chronological diary timeline • PDF/export support • 49 in-app languages • Automatic or manual language selection • Improved Apple Watch reliability Holter Log is a record-keeping tool, not a diagnostic tool and not a replacement for medical advice. What I’d really like to learn from Product Hunt is whether I’ve made the logging process simple enough. If you’ve ever worn a Holter monitor, what was the most annoying part of keeping the diary? I’m happy to answer questions and I’d really appreciate feedback from anyone who tries it. — George