tools·Completed·2026

Express Digital Invitations

Removing the friction of PDF invitations.

The Idea

A simple system for sending personalized web invitations via links shared through WhatsApp. Guests confirm attendance from any device and all the information is automatically centralized.

The Why

It all started when my mother received a family invitation as a PDF. It was too heavy, slow to open, and didn't adapt properly to the phone screen. After observing the problem I understood that design wasn't the real issue. The problem was the PDF.

Logbook

9 entries

15 jul 202614:12

Idea

Hypothesis

Starting to think that family invitations don't need to become apps. Maybe they just need to stop being PDFs.

15 jul 202615:26

Product

Decision

Each guest gets a unique URL. Administration should use a tool any family member can understand. Google Sheets is enough.

15 jul 202616:10

Interface

Doubt

How does the link look when my mother pastes it into WhatsApp? The preview matters more than I thought. If it looks broken or empty, people won't trust the link. Need to handle Open Graph before the first real test.

15 jul 202617:58

Implementation

Progress

The first version works. Invitations generate correctly. Confirmations reach the Sheet.

15 jul 202618:43

Learning

Lesson

The system works. The experience still feels cold. It looks like a form. Not an invitation.

15 jul 202619:17

Idea

Insight

Each response should have a different reaction. If attending: "See you soon 🎉" If not attending: "We'll miss you, but thanks for letting us know."

15 jul 202620:04

Interface

Progress

Added personalized final screens based on the response. Small change. Big emotional difference.

15 jul 202621:33

Testing

Validation

First real test with a family member. Opened the link from WhatsApp, read the invitation, confirmed attendance. No confusion. No friction. That was exactly what I needed to see.

15 jul 202622:51

Milestone

First real invitation sent. The event was my mother's birthday. All confirmations arrived within an hour.

Current status

Completed