The follow-up is the whole point, and it is the part everyone drops

The half-life on this is hours, not days. Before you get on the bus, go through the people you actually spoke to and write one line each: who they are, one specific thing from the conversation, and what you said you would do. The specific thing is the part that makes a follow-up email land — “you mentioned your team is rebuilding the onboarding flow” is a different message from “it was great to meet you.”

Do not rely on the card. A card tells you a name and a company, which is exactly the information you could have looked up anyway. What you cannot reconstruct later is what was said.

The follow-up nobody sends is not the first one — it is the second. Most people manage a thank-you within a couple of days and then go silent forever, which reads as someone who wanted something once. A note two weeks later about the thing they mentioned, and a check-in a few months on, is the entire difference between a contact and a relationship.

That cadence is trivial to describe and nearly impossible to maintain by memory across a dozen people at once. It is the specific job a reminder is good at.

Capture works offline, so you can write the eleven lines standing in the hallway with no signal and let them sync later. Siyi.app picks the dates and promises out of what you wrote and puts each person back in front of you when the follow-up is actually due — two days, two weeks, or next quarter — rather than leaving you to remember which stage each of eleven people is at.

If your follow-ups are mostly professional and you are managing a large LinkedIn network, the comparison with Dex is worth reading — it is built for exactly that, and Siyi is not.