Available now

TheirDay

Remember the people you meet before the context disappears.

Save birthdays, notes, where you met, and how to reach them by phone, email, or social profile. Add contacts by QR code or manually, with contact and birthday data kept local on your device.

Download TheirDay on the App StoreGet TheirDay on Google Play
TheirDay
2 birthdays this week!
Today & Tomorrow
This Week
This Month
4 contacts

Built for the days when you meet too many people.

Use it after conferences, festivals, meetups, and dinners to save who you met before the context disappears.

Web SummitSXSWRISETechCrunch DisruptVivaTechSlushSouth SummitStartup Grind GlobalSaaStr AnnualWeb Summit RioMundo RD StationRio Innovation WeekStartup Summit WeekFuturecomG4 Valley

Events are mentioned only as context examples. TheirDay is not affiliated with, sponsored by, or endorsed by these events.

Contact memory

A birthday agenda for people you actually meet.

TheirDay keeps the tiny details that make a new contact useful later: birthday, context, notes, phone, email, and social profiles.

Capture the context

Save where you met, what they do, and why the person matters before the event memory fades.

Birthday radar

Sort contacts by today, this week, and this month so the next meaningful message is obvious.

QR add in seconds

Scan a QR code to add a person instantly, then keep the birthday, context, email, and social links in one local contact.

Local-first reminders

Contact and birthday data stays on your device, with no account cloud sync, no public profiles, no ads, and no cross-app tracking.

Workflow

From a handshake to a useful reminder in under a minute.

The app is intentionally compact: scan a QR code or add a person manually, capture the birthday, attach context, and let the agenda surface the right moment.
  1. Scan the QR code or add the contact manually while the conversation is fresh.
  2. Store birthday, event context, email, and social profiles.
  3. Open the agenda when upcoming birthdays matter.
Marina Costa
Back
EditDelete
MC
Marina CostaMay 6th
!Birthday tomorrow!
Actions
Email

contact@narak.app

Note

Investor · Sequoia SP · Y Combinator alum

Added on May 3, 2026
TheirDay - New Contact
BackSave
Preview
AR
Ana RibeiroWeb Summit · AI founder
IGin
Tomorrow

QR exchange

Show your code. Scan theirs. Save the person instantly.

Open the QR screen during a conversation, scan once, and TheirDay builds the contact locally with the details you need for the next follow-up.
My TheirDay QR
AR
Ana RibeiroReady to share

The scan adds the contact on your device. TheirDay does not need account cloud sync for this flow.

Scan contact QR
Contact saved locally

CSV export

Move your contact memory into any spreadsheet or workflow.

When your list grows, export your contacts as CSV to organize names, birthdays, notes, and context wherever you work next.
  • Made for conferences, dinners, communities, and business travel.
  • Exports names, birthdays, phones, notes, context, and social profiles.
  • Creates the CSV locally when you choose to export.
theirday-contacts.csv
Export CSV248 contacts ready
NameBirthdayPhoneEmailContext
Marina CostaMay 6+55 11...marina@...Investor · Sequoia SP
João LimaMay 9+351 91...joao@...Founder · Lisbon Demo Day
Ana RibeiroMay 12+1 212...ana@...AI founder · Web Summit
The export is user-initiated and keeps the local-first model clear: you decide where the file goes next.

Made for high-volume meeting days.

Web Summit and conference floors
Founder, investor, and creator events
Business travel and private dinners
Communities where relationships compound

Download

Download TheirDay now.

Open the app, add the people you meet, save birthdays and context, and keep the next meaningful message easy to find.
Download TheirDay on the App StoreGet TheirDay on Google Play