Here are top affiliate/partner platforms that online stores commonly choose (short summary, best-for, integrations & starting price). Sources below — current as of September 4, 2025.

1. Impact (impact.com) — Best for enterprise-level partnership programs and multi-channel tracking.

   • Why: full partner/affiliate/influencer management, contract & payment automation, cross-device attribution and fraud controls.
   • Integrations: Shopify, BigCommerce, major ad and analytics tools.
   • Pricing: tiered (starter to enterprise); Starter plans use a base + revenue-share model (Shopify listing shows starter & higher tiers). (apps.shopify.com)

2. Refersion — Best for Shopify / DTC brands (easy setup + marketplace).

   • Why: Shopify-native app, product-level/coupon tracking, affiliate marketplace and branded affiliate portals.
   • Integrations: Shopify, Klaviyo, PayPal, Trolley, etc.
   • Pricing: plans for small → scale (examples: Professional ≈ $99/mo, Business ≈ $249/mo; enterprise available). (refersion.com, support.refersion.com)

3. Tapfiliate — Best for SMBs that need multi-platform support and flexible commissions.

   • Why: cloud-based, many pre-built integrations, recurring commissions and automation features.
   • Integrations: Shopify, WooCommerce, Stripe, Zapier and 30+ others.
   • Pricing: starts around $89/mo (Pro & Enterprise tiers available). (tapfiliate.com)

4. Post Affiliate Pro — Best when you need highly customizable commission rules and lots of integrations.

   • Why: deep commission types (multi-tier, lifetime, per-product), many integrations and reporting.
   • Pricing: mid-tier plans and higher (Pro/Ultimate/Network tiers from ~€119–€549+/mo depending on plan). (postaffiliatepro.com)

5. LeadDyno — Best budget/easy option for small stores and first-time programs.

   • Why: simple setup, white‑label affiliate dashboards, mobile-friendly, affordable starter plan.
   • Integrations: Shopify, Stripe, PayPal, email tools.
   • Pricing: plans start around $49/mo and scale up. (leaddyno.com)

6. AffiliateWP — Best for WordPress / WooCommerce stores.

   • Why: native WordPress plugin (full control on your site), unlimited affiliates, lots of WP integrations and developer APIs.
   • Pricing: annual licenses (one-time-yearly model) — plans for 1→10 sites. (affiliatewp.com)

7. Everflow — Best for performance, media & enterprise partner tracking (agencies, big brands).

   • Why: enterprise-grade tracking, placement-level analytics, fraud detection, integrated payments; built for high volume.
   • Pricing: enterprise-style starting points (Core / Custom — often $750+/mo depending on needs). (everflow.io, influencermarketinghub.com)

8. PartnerStack — Best for B2B / SaaS partner ecosystems and reseller programs.

   • Why: built for partner/reseller programs, automated onboarding/payments and partner marketplace focus (strong for SaaS).
   • Pricing: custom (contact vendor); focused on scaling partner ecosystems. (partnerstack.com, g2.com)

9. FirstPromoter — Best for SaaS and subscription businesses (recurring commissions & Stripe-focused).

   • Why: built for subscription tracking (recurring commissions, refunds/chargebacks handled), quick Stripe integration and automated payouts.
   • Pricing: entry plans around $49–$149+/mo (based on affiliate-driven revenue limits). (new.firstpromoter.com, fprom.co)

10. Affiliatly / Affilatly — Best low-cost Shopify / small-store option.

• Why: very affordable, straightforward tracking by link / coupon / SKU, long free trial options for Shopify stores.
• Pricing: plans from ~$16/mo up to ~$129/mo for unlimited affiliates. (apps.shopify.com, affiliatly.com)

Quick guidance to choose the right one

• Platform: If you run WooCommerce/WordPress -> AffiliateWP. Shopify-first -> Refersion, UpPromote, or Affiliatly (Shopify app ecosystem). (affiliatewp.com, refersion.com, apps.shopify.com)
• Budget / scale: Small stores & low budget -> Affiliatly or LeadDyno. Mid-size DTC -> Refersion or Tapfiliate. Large/enterprise -> Impact, Everflow, PartnerStack. (affiliatly.com, leaddyno.com, refersion.com, tapfiliate.com, everflow.io, apps.shopify.com)
• Features to prioritize: product/SKU-level commissions, coupon/code tracking, server-to-server (S2S) postback for reliability, automated payouts, fraud detection, and a partner marketplace (if you want help recruiting affiliates). (Feature availability shown on vendor pages cited above.) (tapfiliate.com, refersion.com, everflow.io)

If you want, I can:

• Recommend 2–3 specific platforms for your store if you tell me the platform (Shopify/WooCommerce/BigCommerce), monthly revenue, and whether you need multi-store or international support; or
• Prepare a short comparison (features + estimated monthly cost) for 3 finalists you pick.

Which option would you like next?