Proloca app icon

Proloca

Solo

Log your trades, plans, risk and emotions, then look back for patterns.

My first subscriber arrived while I was asleep

I submitted the subscription version and went to bed. When I woke up, someone in Japan had subscribed. It was the first subscription I had ever sold.

Later, a user in Germany told me the premium price was too high for what they needed. I asked what they would pay. I added a cheaper tier after that conversation, and weekly subscriptions improved substantially.

I build and run Proloca myself. Conversations like that one help me decide what to change next.

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How Proloca got here

  1. August 2026 · 4.1

    A user told me Pro cost too much for simpler journaling. I asked what they would pay, then added a cheaper Journal tier while keeping the deeper analysis in Pro.

  2. July 2026 · 4.0.2

    I renamed Stats to Insights and added trade review. A number is more useful when you can trace it back to the trades, notes, screenshots and decisions behind it.

  3. July 2026 · 4.0

    I added accounts, capital, goals and risk limits so people could keep track of the money and plans behind their trades.

  4. March 2026 · 3.5

    I added iCloud sync so people could keep their journals across devices. I didn’t want changing phones to mean leaving all those notes behind.

  5. Version 2.0

    I made Proloca free to download and introduced subscriptions. Someone in Japan became my first subscriber before I’d done any personal marketing.

  6. The first release

    Proloca started as a paid app. People paid once to download it. There were no subscriptions.

Building and looking after the app

I use SwiftData to store the journal and CloudKit to sync it across someone’s devices. Adapty handles subscription offers, including the cheaper option I added after that customer conversation.

I built the trade review around the details that are easy to forget: what you planned, how much you risked and how you felt when you placed the trade. Seeing those alongside the result gives you more to learn from than a profit or loss figure on its own.

I use Crashlytics to investigate crashes after release. A journal is something people come back to over time, so looking after the app is part of the work too.