Livaton

Agreed, nobody can calculate an individual's exact future life duration. Interesting second point - my thought is that life expectancy is actually correlated with how generally healthy our lifestyle is (positive habits for life expectancy: exercising, unprocessed diet, etc. negative: smoking, obesity, pollution exposure, etc). Definitely data privacy is crucial with any apps collecting personal data - I like your point of trying to build something that runs fully locally. (in case you want to test the initial version: www.livaton.com - the landing page calculator runs the calculation in frontend)

Thanks for your feedback. Agreed, data protection is a big topic for apps. Thinking this may be relevant for those who pay for health/fitness subscriptions, to get a different perspective on the outcome of their activities. Agreed though, life expectancy data is based on large studies/populations, so can't be 100% accurate at each individual's level - more just an estimate as you say.