Subly

Subscription tracking app

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December 28, 2025 I built Subly after losing $200 to forgotten subscriptions 💸

Hey Indie Hackers! 👋

I'm excited (and a bit nervous) to share my first product launch with this community: Subly - a subscription tracker that helps you stop losing money to renewals you forgot about.

The Problem That Hit My Wallet

Like many of you, I'm juggling multiple subscriptions - SaaS tools, streaming services, gym memberships, you name it. Last year, I realized I'd lost over $200 to subscriptions I meant to cancel but completely forgot about. That frustrating moment became my motivation to build Subly.

What Subly Does

Subly is designed for busy professionals who don't have time to manually track every subscription. Here's what it offers:

  • Smart reminders before subscriptions renew (so you can cancel what you don't need)

  • Spending analytics to see where your money is actually going

  • Multi-currency support for international subscriptions

  • Categories to organize your subscriptions

  • Email notifications so you never miss a renewal

The Tech Stack

For the developers here, I kept it lean and cost-effective:

  • Frontend: React + TypeScript + Vite

  • Backend: Firebase (Auth, Firestore, Functions, Hosting)

  • Payments: Lemon Squeezy

  • Email: Resend + Firebase Extension

  • Monitoring: Sentry

  • DNS: Namecheap

Current monthly cost for ~1,000 users: $0-30 (plus payment processing fees). Pretty sustainable!

Where I'm At

Just launched and actively looking for early users. I'm a solo founder and this is a learn-as-I-go journey. I'd love feedback on literally everything - the UX, pricing strategy, features, onboarding flow, you name it.

Special Offer for IH Community

I'm offering 50% off for early adopters who want to give Subly a try and help shape the product.

👉 Check it out: https://www.getsubly.app

Would love to hear your thoughts! Have you lost money to forgotten subscriptions? What features would make a subscription tracker actually useful for you?

Thanks for reading, and appreciate any feedback! 🙏

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About

I built Subly after realizing how much money disappears through forgotten subscriptions. The goal is simple: make subscriptions visible, manageable, and easy to cancel.