A contact book with context

Never forget a name.

GuessWho connects people to their organizations, departments, events, notes, and each other. When a name comes up, the whole story comes back with it.

Open a name and remember…

Met Sarah Chen at WWDC — introduced by Dave Kim. Talked about her indie weather app.

Met Priya Patel at the Austin Swift meetup. She runs the sync team — follow up in the spring.

Met Marco Rossi at Sarah’s dinner party. Recommended a great espresso spot in Rome.

Met Lena Fischer at Config — introduced by Priya. Design systems and dark mode.

A contact in GuessWho showing the person's organization, phone, email, and a private dated note.

Every name makes more sense in context.

A phone number is easy. Remembering the person behind it is harder. GuessWho turns a flat contact list into a connected view of the people and places in your life.

Organizations & departments

Add a company and department once. GuessWho automatically groups the people who work together, so their colleagues are easy to find.

People

Connect the person who introduced you, their manager, a friend, or anyone else who helps you remember where they fit.

Events

Connect contacts to the meetup, dinner, or conference where you met, then see everyone who was there together.

Dated notes

Pick up every conversation where you left off.

Add a private, dated note after each conversation. Open a contact later and you’ll see what you discussed, who connects you, and the events you shared — all on one screen.

Dated notes that read like a running memory.
Linked people — who introduced you, who they work with.
Linked events — where and when your paths crossed.

Browser extension

Save a LinkedIn profile in one click.

When you’re looking at someone’s profile in Safari, Chrome, or Brave, the GuessWho extension reads the page you’re already viewing — name, title, company, links, and photo — and hands it to the app.

Check off exactly which fields to save; leave the rest untouched.
Creates a new contact or updates one you already have.
Nothing is captured or saved without your click and your review.

GuessWho's import review sheet: existing values on the left, LinkedIn values on the right, with a checkbox on each field.

Everything a contact can carry

GuessWho sits on top of the Contacts and Calendar you already use, and adds the layers that make a name memorable.

Relationships

Link a person to other people, their company, or an event — each with a note on how you know them.

Events

See the events you shared with a contact, when and where they happened, and who else attended.

Private notes

Keep notes on any person or event. They’re yours alone, right where you’ll look for them.

Custom fields

Add fields of your own for the details that matter to you and no one else.

Groups

Gather contacts into groups — and email everyone in one at once.

Organizations

Company and department details automatically organize the people who work together.

Maps guides & places

Import an Apple Maps guide and keep the places you love, tied to the people and events around them.

Favorites

Star the people, organizations, and places you reach for most, so they’re one tap away.

Useful sorting

Sort people by name, when you last viewed them, or when you last interacted.

See it in action

The People list in GuessWho, contacts grouped alphabetically with roles and companies. — Everyone you know, at a glance.

An event in GuessWho with its date, venue, notes, and a tag. — Events with notes and tags.

Creating a new contact in GuessWho. — Add a contact in seconds.

GuessWho for Mac

The same context, with room to see it all.

Browse people, organizations, and details side by side on your Mac. Everything stays in sync through your own iCloud.

GuessWho for Mac showing the Organizations view: the sidebar, a list of companies, and a company's departments and people side by side. — Browse your network by person, company, or department.

GuessWho for Mac showing a contact and the context connected to them: their organization, dated notes, and linked people. — See notes, relationships, and shared events in one place.

Your data stays on your device.

GuessWho reads the Contacts and Calendar already on your device, and stores your notes, tags, links, and favorites as plain files that sync only through your own iCloud. There’s no account to create and no company server — nobody but you can see any of it.

Private beta