Apollo is a general-purpose B2B sales platform combining a contact database with email sequencing and CRM integrations. Whistle is a contact and hiring-signal database built only for selling into US college athletic departments. Here's an honest side-by-side.
| Whistle | Apollo | |
|---|---|---|
| Coverage scope | US college athletics only: 1,098 of 1,168 NCAA athletic departments extracted so far, 113,850 tracked staff positions. Browse the directory | Lists access to 240M contacts and 30M companies across all industries. Apollo coverage scope source ↗ |
| Data source | Official athletic department staff directories, extracted automatically (including AI parsing). Where a school doesn't publish an email, it may be inferred from the school's address pattern and is recorded as inferred. How we collect data | Not stated on their public pages |
| Freshness | Directories are re-extracted on a rolling schedule. Newest refresh 2026-10-27, oldest 2026-08-31 (live from our database). Live freshness table | Not stated on their public pages |
| Hire / departure signals | 5,180 new-hire, departure and title-change signals detected so far. Alerts on Pro (3), Pro+ (10), Enterprise (unlimited). Alerts by plan | Not stated on their public pages |
| Entry price | Base $10/month (200 rows), Pro $50/month (2,000 rows), Pro+ $100/month (5,000 rows, includes emails and phones); Enterprise on request. Monthly billing, cancel anytime. Whistle pricing | Free plan available. Paid plans are billed per seat (all seats on an account share one plan), with a lower monthly rate on annual billing than on monthly billing; see Apollo's pricing page for current figures. Custom/Enterprise via sales. Apollo entry price source ↗ |
| API / MCP | REST API on every plan, MCP server on every plan. Emails and phones on Pro+, Enterprise. API reference | API access is named in the description of its Enterprise plan. Apollo api / mcp source ↗ |
Apollo information comes from its own public pages, checked October 12, 2026. Prices and features change; follow each source link for the current version. Whistle figures are live from our database and pricing page. Spot something out of date? Email support@gowhistle.io.
Apollo is a general-purpose B2B sales platform combining a contact database with email sequencing and CRM integrations. Whistle focuses only on US college athletic departments: staff extracted from official athletic department directories (1,098 departments so far), with alerts when staff are hired, leave or change titles.
Whistle: Base $10/month (200 rows), Pro $50/month (2,000 rows), Pro+ $100/month (5,000 rows, includes emails and phones); Enterprise on request. Monthly billing, cancel anytime. Apollo, per its public pricing page as of October 12, 2026: Free plan available. Paid plans are billed per seat (all seats on an account share one plan), with a lower monthly rate on annual billing than on monthly billing; see Apollo's pricing page for current figures. Custom/Enterprise via sales.
From the staff directories that athletic departments publish on their official websites, extracted automatically and refreshed on a rolling schedule. Staff can remove their information at any time at gowhistle.io/remove-my-info.
Apollo is likely the better fit if college athletics is one market among many for you, or you want prospecting and email sequencing in a single tool.