Why the first five minutes matter
Most subscription trackers get abandoned because people try to build a complete history before they get any value out of the tool. They spend 45 minutes backfilling old charges, get tired, close the tab, and never come back.
SubHorizon is designed to be useful after a single short session. The first five minutes should give you a clean view of what renews next, what it costs, and who owns the decision. Everything else — history, analytics, insights — builds on top of that foundation.
The goal is not exhaustive bookkeeping. It is getting to a state where the next renewal does not surprise you.
Step 1 — Start with what hits your card right now
Open your email, find the last few subscription receipts, and add those tools first. For most vibe coders, the core stack looks something like this:
- Cursor Pro — $20/month for AI-powered code editing with inline completions and codebase chat
- Claude Pro — $20/month for long-context AI assistance, Artifacts, and Claude Code terminal workflows
- ChatGPT Plus — $20/month for GPT-4o, DALL-E image generation, and Custom GPTs
- GitHub Copilot — $10/month for code completions in VS Code, JetBrains, or Neovim
- Replit Core — $25/month for browser-based AI development with instant deployments
You do not need to add every tool you have ever tried. Start with the ones that are actively billing. You can always add more later.
Step 2 — Capture the details that matter
For each subscription, SubHorizon asks for a few key fields. Not all are required, but the more you fill in now, the more useful your renewal reviews will be later.
- Service name — The tool itself (Cursor, Claude, ChatGPT, etc.)
- Billing cadence — Monthly or annual. Annual plans are the ones most likely to surprise you.
- Renewal date — When the next charge hits. Even an approximate date is better than nothing.
- Monthly cost — What you actually pay. Include taxes if you know them.
- Owner or user — Who on your team uses this tool? For solo builders, this is you. For small teams, naming the owner makes review conversations much easier.
- Notes — A one-line reason why this tool exists in your stack. "Primary code editor" or "Using for image generation on client project" — anything that helps future-you understand why you are paying for it.
The notes field is the most underrated part of the setup. When a renewal comes up three months from now and nobody remembers why you subscribed, that one-line note turns a confusing charge into a clear decision.
Step 3 — Set your first renewal reminders
SubHorizon supports 30, 60, and 90-day renewal alerts. For monthly subscriptions, a 7-day reminder is usually enough. For annual plans, set a 30-day reminder so you have time to evaluate before the charge hits.
The timing matters because annual renewals are where the biggest savings hide. A $20/month tool that auto-renews annually is a $240 charge you might not notice until it appears on your statement. A 30-day heads-up turns that into a deliberate decision instead of an accidental expense.
- Monthly plans — Set a 7-day reminder. Enough time to decide if you still need it.
- Annual plans — Set a 30-day reminder. Enough time to evaluate, downgrade, or cancel.
- Trial conversions — Set a reminder for 3 days before the trial ends. These are the charges people forget about most often.
Step 4 — Add shared ownership details
If you work with a team, even a small one, subscription ownership gets messy fast. One person signs up for a tool, another person starts using it, and nobody is sure who should make the renewal decision.
For each subscription, note whether it is a personal tool, a team tool, or a shared account. If someone else is the primary user, tag them as the owner. This way, when renewal reviews come around, the right person is in the loop.
For solo builders, this step is simpler — everything is yours. But it is still worth noting which tools are for which projects, especially if you freelance or consult across multiple clients.
What a clean workspace looks like after 10 minutes
After one short session, your SubHorizon workspace should show you:
- A list of 3-7 active AI subscriptions with costs and renewal dates
- Total monthly spend visible in one number (typically $70-120 for active vibe coders)
- Upcoming renewals sorted by date so you know what is coming next
- Reminders set for each subscription so nothing slips past you
- Notes on each tool explaining why it exists in your stack
That is enough to start making better decisions. You do not need to import historical charges, set up budget goals, or configure analytics. Those features are there when you want them, but the core value — knowing what you pay for, when it renews, and why it exists — is available from the first session.
The next time a renewal email arrives, instead of ignoring it or panic-canceling, you will have the context to make a calm, informed decision. That is what SubHorizon is for.