Marketing tool comparisons
Short answer: there are 4 head-to-head comparisons. Each shows the headline price of both tools side by side, checked against the vendor. A comparison adds Kerry's verdict once he has reviewed both tools.
Prices last checked November 5, 2026. See how we check prices and label pages.
All comparisons
| Comparison | Question it answers | First tool price | Second tool price | Verdict from Kerry |
|---|---|---|---|---|
| Ahrefs vs Semrush | Should a small agency pay for Ahrefs or Semrush? | Ahrefs: Free plan. Paid plans from $29 per month for Starter | Semrush: Free plan. Paid plans from $139 per month | Not yet. Facts only. |
| ChatGPT and Codex vs Claude and Claude Code | Is Claude or ChatGPT the better paid assistant for marketing work? | ChatGPT and Codex: Free plan. Go $8 per month. Plus $20 per month | Claude and Claude Code: Free plan. Pro $20 per month | Not yet. Facts only. |
| n8n vs Zapier | Should you automate with n8n or Zapier? | n8n: Free to self-host, cloud from 20 euros per month billed annually | Zapier: Free, paid plans start from $19.99 per month (billing period not confirmed) | Not yet. Facts only. |
| Google Analytics 4 (GA4) vs PostHog | Do you need GA4 or PostHog to measure your site? | Google Analytics 4 (GA4): Free for the standard version. | PostHog: Free monthly tier. Pay as you go above it. | Not yet. Facts only. |
Want a ranked shortlist for a job? See the guides. Want every tool in one table? See all tools.