[week 4] Dia: Defining the MVP
The best way to launch is to launch fast. The sooner Dia can be used, the better. From there, it will only improve. But to ship quickly, I need to define what one thing it will do first.
You may have read the long-term vision -but not everything can fit into version 1.0.
So, what will? And what won’t?
🖥️ Platform
The first decision: which platform will Dia support from day one?
Answer: Mobile and desktop as a responsive web app (built in Flutter).
- Why a responsive web app? So you can check your day on your phone as well as on your desktop.
- Why Flutter? It’s modern, fast, multiplatform (web, desktop, iOS, Android…), and the one I fell in love with.
✅ Core Feature
Dia 1.0 will deliver on its core promise:
The clarity of a calendar (weekly view)
with the flexibility of a to-do app (no fixed times).
🧱 The Three Foundations
Version 1.0 will be built around three simple ideas:
- Effectivity — Tasks must be assigned to a day.
- Simple Structure — Weekly and daily view only.
- Flexibility — Drag tasks between days.
❌ What Dia 1.0 Won’t Include
It won’t include:
- Weekly Objectives or Must / Should / Could prioritization
- Native apps (yet-Flutter makes it straightforward to expand later)
- Any extras you might expect:
no time/date picker, no calendar sync, no lists, no tags, no rollover, no notes, no settings, no durations, no stats, no repeats… Heck, it won’t even have a possibility to sign-up.
🧠 Who Is Dia 1.0 For?
Dia 1.0 is for me-so I can finally start planning with a tool that fits my brain.
It’s the most stripped-down, essential version of a planning app I’ve always needed.
I’ll beta test it solo for about a week.
After that, I’ll open up an exclusive round for 9 users at $9.
If you don’t want to miss it, sign up here.
🚀 Dia 2.0 — Your Turn
What happens next? Honestly, I don’t know. Because from that point on, I won’t be the only one shaping Dia.
Early users will help steer the roadmap. We’ll hold monthly votes on what to build next-each user gets a voice.
🌱 Dia 3.0+
There will be future closed rounds for new users-each with a slightly higher price to join the founding community. I’ll announce those here, on the blog.
📌 Dia Weekly objectives
Previous week
- ✅ Finalized design, functionality, and platform for Dia 1.0
- ✅ Talked to productivity freaks
This week
- 🟥 Finalize dev plan for the week (will cover in detail in the next blog post)
🙏🏻 Thank You
Thanks for reading! As always, I’d love to hear your thoughts.
Email me at tomas@heydia.app.
Originally published at https://heydia.app.