Post Affiliate Pro vs Grin
Side-by-side from the Top 11 rankings of The 11 Best Affiliate Marketing Software Platforms (2026) and The 11 Best Influencer Marketing Platforms (2026). Last verified June 14, 2026.
The short answer
Grin ranks higher on Top 11 (#1 vs #9) for E-commerce brands and SaaS companies launching affiliate programs / Brand marketers and agencies finding, managing, and paying influencer campaigns. Best for e-commerce brands due to its deep sales tracking and product seeding integrations.
At a glance
| Post Affiliate Pro | Grin | |
|---|---|---|
| Top 11 rank | #9 / The 11 Best Affiliate Marketing Software Platforms (2026) | #1 / The 11 Best Influencer Marketing Platforms (2026) |
| Score (out of 9.4) | 7.6 | 9.4 |
| Best for | Customizable self-hosted software | DTC & e-commerce brands |
| Pricing | $$ ($129/mo or $1,199 license) | $$$$ ($25k to $100k+/yr) |
| HQ | Bratislava, Slovakia | Sacramento, USA |
| Founded | 2004 | 2014 |
Post Affiliate Pro
A feature-packed, customizable platform available as SaaS or self-hosted license.
www.postaffiliatepro.comSee full entry in The 11 Best Affiliate Marketing Software Platforms (2026)
Grin
Best for e-commerce brands due to its deep sales tracking and product seeding integrations.
grin.coSee full entry in The 11 Best Influencer Marketing Platforms (2026)
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.