Ayer lets you pick any calendar date and instantly see all the photos and videos you took on that exact day across every past year. I built it after my second son was born exactly two years and one day after my first. I wanted to compare their photos on the same day, year over year. No app let me do that. Most photo apps decide what memories you see. Ayer lets you choose. 100% offline. No cloud, no login, no tracking.