Sonnical Work Planner

I’m a medical doctor and indie developer. I’ve always loved technology, and between long shifts and emergencies, coding became my way to disconnect — or maybe to stay sane.

What started as a tool to organize chaotic medical shifts has evolved into a fully customizable platform that any team — in any industry — can use. From restaurants to agencies, from hospitals to construction sites, the same scheduling chaos exists everywhere.

As an anesthesiologist, my schedule used to be chaos: 24-hour shifts, constant changes, freelancers coming and going, no way to know who was working where. I built Sonnical to fix that chaos — first for myself, then for others.

The pain

Hospitals (and many other industries) deal with impossible scheduling: rotating teams, last-minute replacements, part-time and freelance workers, and different rules for each contract.

No spreadsheet or shared calendar could handle it. I kept thinking — there must be a smarter way to organize people’s time.

The spark

I started building a small app just for myself — no AI, no fancy features, just order.

A few buttons to assign shifts more clearly. It worked, and suddenly colleagues wanted to use it too.

The evolution

What began as a weekend project turned into something much bigger.

Now Sonnical includes AI-assisted scheduling, clock-in/out, vacation requests, managing different positions, and even internal shift exchange between colleagues, etc etc etc…

But it wasn’t a straight path. I paused the project several times — it simply became too big for a single person.

During that time, I also became a father, and there were months when coding after midnight felt impossible.

Initially, Sonnical was only for iOS, but I quickly realized that made no sense: in any company, teams use iOS, Android, and web together.

It was the same with the industry focus — at first, I thought it would be just for medical teams, but I learned that the same chaos exists everywhere: restaurants, construction, retail, agencies.

So I rebuilt it from the ground up with complete customization, so any team, in any industry, could use it.

A few months ago, I decided to pick it up again — carefully, patiently, and with more experience.

After countless nights and weekends, I finally finished it and ported everything to web and Android.

Lessons learned

Technical: I learned React Native, Swift, and backend architecture on my own. Each step felt like a mini degree.

User behavior: Doctors aren’t early adopters, and freelancers manage availability very differently.

Personal: Building a startup solo is like doing another medical residency — except this time, you’re both the doctor and the patient.

I’ve built smaller apps before, but Sonnical is by far my biggest project — one I never imagined I could finish.

What’s next

I’m now opening private beta testing.

If you manage shifts, teams, mixed schedules, or freelance staff — in any industry — I’d love your feedback and perspective.

📩 You can request an invitation code at logiclinelabs@gmail.com.