Comparison
Siyi.app vs Dex
Both are personal CRMs. They are aimed at different people, and the difference is not a feature list — it is who the product thinks you are.
The short version
Dex is built for professionals managing a network: it syncs LinkedIn, watches for job changes across your contacts, pulls in email and calendar, and layers an AI assistant over the result. If your relationships live in a CRM-shaped part of your life — clients, recruiters, a few hundred industry contacts — that is the shape of tool you want.
Siyi.app is built for the people physically around you right now. Classmates, the club, someone from a party, the friend from freshman year you keep meaning to text. Nobody in that group has a job title worth syncing, and none of it lives in your inbox.
Where the two actually diverge
The unit of capture. Dex is organized around importing a network you already have and enriching it. Siyi.app is organized around the ninety seconds after you meet someone new, when the only record that will ever exist is the one you make. You write a sentence; it becomes the person.
What triggers a reminder. A professional CRM nudges you on cadence and on job changes. Siyi.app nudges on the things that matter in a life that is not a sales pipeline: a birthday, a favor you promised and have not done, a friend who has quietly gone six months without a conversation.
Price. Siyi.app is free, with no contact cap and no trial clock. Dex is a paid product — see their pricing page for current plans. For a student that gap is usually the end of the conversation.
When Dex is the better answer
If your contacts are professional, numerous, and already sitting in LinkedIn and Gmail, Dex’s integrations do work that Siyi.app does not attempt. We do not sync LinkedIn, we do not read your inbox, and we are not going to tell you when someone changes employer. If those are the features you are shopping for, buy the tool built around them.
When Siyi is
You are in college or just out of it. You are meeting people constantly and in person. You want something free that takes one sentence and does not ask you to maintain it. And you want the people you write about to never find out — there is no feed, no profile, and no notification to anyone.
The college case spells out what that looks like day to day.
Start with one person.
Siyi.app is free, and the whole first step is writing one sentence about someone you met this week.
Try Siyi