Why I'm charging $49 once instead of a subscription for my desktop app

I spent 10+ years building offline Windows software for factories and
retail. Boring, reliable, local software.

Now I'm building my own product: LockMargin, a local-first Financial OS
for freelancers. Time tracking, invoices and expenses in one encrypted
SQLite file on your machine.

The first question every indie founder gets is "what's your MRR plan?"

I don't have one. LockMargin is $49 once. No subscription, no account
required.

Three reasons, in order of honesty:

1. I'm the target user.
   I paid $19/month for years to store my own invoices on someone else's
   server. Charging rent for the same thing would make me the landlord I
   complain about.

2. The pricing is part of the product design.
   The whole idea is "own your business, don't rent it." Putting that
   behind a permanent subscription creates a contradiction I couldn't
   ignore.

3. It's a hypothesis I want to test.
   I suspect a $49 one-time purchase feels easier to justify than another
   recurring bill when work is slow. That's a hypothesis, not a proven
   insight. I have zero customers so far, so I'm not pretending otherwise.

What I'm giving up, with math:

• No compounding MRR. If I sell 100 copies, that's $4,900. Then $0
  until the next 100.
• No sunsetting leverage. People will pay for v2 because it's better,
  not because they're trapped.
• I will know exactly how broke I am every morning. No recurring
  revenue to hide behind.

The only upsell: 50% off major versions for existing users.

The upside is simple: the customer pays once and owns that version. I
have to keep earning trust instead of relying on subscription inertia.

Status: Windows Early Access opens September 2026. Zero customers.
Building in public.

For those who've shipped one-time desktop tools:

• Would you choose one-time pricing again if you started today?
• At what revenue level did predictability become a real problem?
• How did you keep shipping updates without "they'll cancel if I don't"
  pressure?

Happy to share what I learn the hard way.

https://lockmargin.com/manifesto.html?utm_source=indiehackers&utm_medium=social