Affilyn vs Siren

Affilyn helps Shopify merchants run affiliate programs by onboarding partners, tracking referral sales, managing commissions and payouts, and reviewing program performance. Merchants install it through Shopify and access it from Shopify admin. Features include affiliate link tracking, attribution settings, partner analytics, balance and commission timing visibility, and fraud review signals. Partner workflows cover applications and invitations, profiles, tier rules, custom commissions, payout queue review, storefronts, campaigns, gifting and contracts. The free plan has no recurring app charge and supports five active partners and one VIP storefront, with unlimited product syncing and affiliate links. Paid plans are billed every 30 days through Shopify: Starter costs $29 a month, Growth $79 a month, Professional $199 a month, and Enterprise $499 a month. Their partner caps range from 25 to 2,500, with tier-specific storefront, storage and analytics limits. Affilyn is only for merchants and programs connected to Shopify stores.

Siren manages partner and incentive programs for affiliates, referrals, royalties, loyalty, revenue sharing, and sales commissions. It tracks clicks, leads, sales, renewals, and other events, then attributes outcomes and calculates commissions or rewards. Its feature page describes five attribution models: first-touch, last-touch, top-score, shared engagement pool, and performance-weighted pool. A partner portal supports partner access, while Siren tracks approvals and payouts and exports payout batches for the payment method a customer uses. WordPress integrations include WooCommerce, Easy Digital Downloads, LifterLMS, LearnDash, Gravity Forms, Ninja Forms, and North Commerce. Managed Cloud integrations include Shopify, Stripe, HubSpot, Salesforce, NetSuite, plus API and webhook connections. Siren is available as a self-hosted WordPress plugin and in hosted Cloud or Full-Service editions. For WordPress, affiliate, commission, and payout records remain in the customer's WordPress database and can be exported. The Lite plan is free. Paid WordPress plans start at $229 a year for Essentials; Plus is $299 a year and Pro is $499 a year. The plugin requires self-hosted WordPress 6+ and PHP 8.1 or newer, and does not directly integrate with MemberPress.