Affonso vs Siren
Affonso
affonso.ioSiren
sirenaffiliates.comSide by side
| Figure | Affonso | Siren |
|---|---|---|
| Price from | €1.25/mo | $19.08/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 6 | 8 |
| Spec score · Affiliate Marketing Software | 8.6 (#13) | 8.7 (#9) |
| API access | Yes | Yes |
| Automated payouts | Yes | Yes |
| Company | Affonso says it is bootstrapped and founder-led and serves more than 500 software companies. | Siren’s privacy policy identifies the site operator as Novatorius, LLC. |
| Free plan | No | Yes |
| Integrations | Named payment integrations include Stripe, Paddle Billing, Polar.sh, Creem.io, and Dodo Payments, and the site also describes API support for other providers. | WordPress integrations include WooCommerce, Easy Digital Downloads, LifterLMS, LearnDash, Gravity Forms, Ninja Forms, and North Commerce. |
| Partner portal | Yes | Yes |
| Support | Affonso offers human support by email and live chat, with responses guaranteed within 24 hours and often arriving within two business hours. | Paid WordPress plans include updates and support while the license is active, with priority response for Plus and Pro subscribers. |
| Tracking | Affonso supports referral links, coupon tracking, sub-ID tracking, deeplinks, QR codes, and unlimited tracked clicks across listed plans. | It tracks clicks, leads, sales, renewals, and other events, then attributes results and calculates commissions and rewards. |
| Who it serves | The company describes its users as SaaS founders, growth and partnership teams, and SaaS distribution partners. | The maker identifies WordPress stores, course platforms, creator marketplaces, subscription products, and sales teams as suitable use cases. |
Plans
Affonso
- Launch€15 a month
- Growth€29 a month
- Elite€79 a month
- Enterprise€149 a month
- Launch€15 a year
- EnterprisePriced on request
Siren
- Siren LiteFree
- Siren Essentials$229 a year
- Siren Plus$299 a year
- Siren Pro$499 a year
- Cloud Essentials$996 a year
- Cloud Plus$1,248 a year
- Cloud Pro$3,744 a year
- Full-ServicePriced on request
In their own words
Siren
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.