Tracking outreach to your own contact list shares this register's CRM build spec. Apollo's actual differentiator is a huge, continuously-verified database of other companies' contact details — a licensed-data problem, not a build problem.
VIBE SCORE 94/100
The parts this build actually needs, each rated on its own — the average is the Vibe Score above.
| Landing page | 99 |
| CRUD database | 95 |
| Email notifications | 91 |
| User login | 92 |
Two real costs, not just "free": the AI agent's own usage, and hosting once it's running. Both are estimated from this app's own effort rating and component list — see the assumptions on the method page.
| AI agent — with a subscription (Claude Pro/Max, Cursor, etc.) | $0 marginal |
| AI agent — pay-per-use API, no subscription | $43–$86 one-time |
| Hosting, once it's running | $0/mo (free tier) |
| Domain name, if you want your own | ~$12/yr |
Apollo costs $49/mo. Even paying per-token with no subscription, and accounting for hosting, this build pays for itself in about 2 months.
Don't feel like building it? These are already made, open-source, and free.
Borderline. Tracking outreach to your own contact list shares this register's CRM build spec. Apollo's actual differentiator is a huge, continuously-verified database of other companies' contact details — a licensed-data problem, not a build problem.
Apollo costs $49/mo (about $588/yr) as of 2026-08. That's what a working rebuild would save you.
Their core sales pitch is a searchable database of hundreds of millions of contacts at other companies — that's licensed and continuously-verified third-party data, not something a build acquires Email deliverability at scale is the same ongoing reputation problem every sender on this register shares Intent-data signals (which companies are actively researching your product category) require data partnerships, not code
Yes — Twenty are open-source options worth trying before you build your own. Details are in the standard parts section on this page.