Copy Add More Colors to Calendar?
Google Chrome Extension that expands google calendar's customization capabilities. Allows users to add custom hex colors to calendar events on personal and business calendars. Doing 0 marketing curren
Build me a Productivity web app like Add More Colors to Calendar. Add More Colors to Calendar does: Google Chrome Extension that expands google calendar's customization capabilities. Allows users to add custom hex colors to calendar events on personal and business calendars. Doing 0 marketing curren It reportedly makes about $204/mo, so the core idea clearly has demand — I want a lean version I can run and charge for. Start from the open-source project mettle/sendportal (https://github.com/mettle/sendportal) — reuse what fits, strip its branding, and build the specifics below on top of it. Requirements: - Import subscribers, manage lists/segments. - Drag-and-drop email builder, send/schedule campaigns. - Open/click tracking and a simple automation (welcome series). Also: - Clean, modern, responsive UI with a thoughtful landing page. - Email/password auth and a simple paid tier (Stripe test mode) so it's ready to charge. - A README covering setup, environment variables, and how to deploy. Ship a working MVP I can run locally first, then help me deploy it.
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Questions
Can I really build something like Add More Colors to Calendar?
Yes. Add More Colors to Calendar is a productivity product doing ~$204/mo — the core loop is well understood. With the prompt on this page and the open-source repo mettle/sendportal as a base, a coding agent like Claude Code or BuildCheap can get you a working MVP in a weekend.
How much does Add More Colors to Calendar make?
Around $204/mo based on public revenue data. That's the whole point of CopyMRR — you're copying something with proven demand, not guessing.
What repo does this start from?
mettle/sendportal (2,136★). "Clone & ship" imports it straight into BuildCheap so you start from a running app, then adapt it.
Is this affiliated with Add More Colors to Calendar?
No. CopyMRR indexes public revenue data and points you at open-source building blocks. Build your own thing — don't copy their brand or content.
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