FastSpring vs Sellix
FastSpring
fastspring.comSellix
sellix.ggSide by side
| Figure | FastSpring | Sellix |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 3 | 1 |
| Spec score · Digital Product Selling Platforms | 8.7 (#5) | 7.4 (#24) |
| Checkout | FastSpring offers hosted web checkouts that handle localization, taxes, and payments without embedded scripts or code on the seller’s website. | Sellix says it is crypto-only, with buyers choosing supported crypto assets and checkout converting displayed fiat prices; card payments are not currently available. |
| Headquarters | The company is headquartered in Santa Barbara, California. | London, United Kingdom |
| Integrations | Listed integrations include Google Tag Manager, Zapier, Nalpeiron, LicenseSpot, Soraco QLM, SoftwareKey, Drip, AdRoll, Bing Ads and multiple licensing services. | Sellix documents a BlockPN checkout and settlement integration, Discord role and invite delivery through dynamic webhooks, and custom integrations through its REST API and webhooks. |
| Support | FastSpring directs sellers to its Support & Documentation resources and provides developer documentation and a support case portal. | Sellix says it does not provide a support inbox or chat queue and directs users to public documentation, a status page, and an abuse or legal report form. |
| What it does | FastSpring is a merchant-of-record platform for SaaS, software, games and other digital products that handles checkout, payments, taxes, subscriptions and compliance. | Sellix describes itself as a multi-tenant commerce platform for selling digital and physical goods with crypto checkout, public shops, hosted checkout, and a management dashboard. |
Plans
FastSpring
- Free test modeFree
- Custom quotePriced on request
- Custom revenue-sharePriced on request
In their own words
FastSpring
FastSpring has no write-up on Specifiction yet; its figures are above.
Sellix
Sellix is a commerce platform for digital and physical goods, offering public shops, hosted checkout, and a management dashboard. Checkout is crypto-only: buyers select supported assets while displayed fiat prices are converted during payment, and cards are unavailable. Products can include license keys, file downloads, accounts, Discord roles and invites, physical goods, subscriptions, and custom payloads. Confirmed payments can trigger keys, signed download URLs, webhook payloads, or physical-order status. The REST API and signed webhooks support custom integrations, with BlockPN settlement and Discord delivery documented. API keys use granular permissions, expire within at most 90 days, and can be revoked. Webhooks use HMAC-SHA256 and retry up to six times. The plan costs nothing with no subscription, take-rate, or expiry. Sellix supports unlimited shops, products, orders, and customers, plus custom domains, teams, roles, and 2FA.