Fourthwall vs Solidus
Fourthwall
fourthwall.com
Solidus
solidus.ioSide by side
| Figure | Fourthwall | Solidus |
|---|---|---|
| Price from | $15/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 3 |
| Spec score · Ecommerce platforms | 9.2 (#12) | 8.7 (#45) |
| Digital products | Fourthwall hosts and securely delivers digital files, charging Free users a 5% fee and giving Pro users up to 100 GB storage without that fee. | Yes |
| Free plan | Yes | Yes |
| Integrations | Official integrations include YouTube Shopping, TikTok Shop, Twitch Gifting, Instagram/Facebook Shopping, StreamElements, Streamlabs, Klaviyo, beehiiv, Laylo, ShipStation, Mailchimp, Zapier, Kit and Spotify. | Official integrations include Stripe, PayPal, Braintree, Klarna, Affirm, AfterPay, Avalara, TaxCloud, EasyPost, ShipStation, Klaviyo, Segment, Contentful and Meta. |
| Security | Fourthwall’s Trust Center lists a SOC 2 Type I engagement letter plus encryption, vulnerability monitoring, background checks and tested disaster-recovery controls. | Solidus versions receive security patches for 18 months after release, and the security policy directs vulnerability reports through its HackerOne disclosure program. |
| Self-hosting | The documentation describes hosted APIs and checkout services and provides no self-hosting option. | The DIY Edition lets operators run the complete platform on their own infrastructure, while Solidus Cloud manages hosting. |
| System requirements | The FAQ states there are no upfront costs, contracts or stated technical requirements to start using the service. | The installation guide requires Ruby, Rails, a relational database such as PostgreSQL or MySQL, and libvips or ImageMagick for image processing. |
| What it does | Fourthwall is a hosted creator-commerce platform for branded storefronts, merchandise, digital products, memberships and donations. | Solidus is a Ruby on Rails e-commerce platform for highly customized online stores. |
Plans
Solidus
- DIY EditionFree
- Enterprise CloudPriced on request
- Starter CloudPriced on request
In their own words
Fourthwall
Fourthwall provides tools for designing and selling catalog products, running a customizable shop, offering memberships and using social selling integrations. Its Free plan includes those functions, and listed storefront connections include YouTube Product Shelf (Merch Shelf), TikTok Shop, Twitch Product Gifting, Facebook Shopping and Instagram Shopping. Fulfillment coverage is global, with white-label shipping and custom branding available. The service also lists design and mockup tools and API access. The Pro plan costs $15 a month and includes 100 GB of digital product storage. The listed platform is API. That platform detail may matter to sellers considering how the service connects with their store or workflow. Customer personalization is not included in the listed offering. The plan details distinguish the free shop and selling functions from Pro's stated digital product storage allowance, while both plans sit within a service that also lists social connections and global fulfillment.
Solidus
Solidus is an eCommerce platform for brands that need control over storefronts, business logic, and administration. Its open architecture and API let businesses tailor all three, including for distinctive digital experiences or complex enterprise integrations. Catalog tools include dynamic variants, segmented pricing, product drops, bundles, rich taxonomies, and personalization quizzes. Inventory and fulfillment features cover backordering, split shipments, global fulfillment, WMS or 3PL connections, exchanges, and self-serve returns. Tax support includes per-product rules, VAT, GST, sales tax, automated filing, refunds, and customer exemptions. Businesses can configure promotions and checkout, from time-based offers to one-click or multistep flows. A native subscription engine connects payment methods, promotions, checkout, and fulfillment. Solidus runs via API, on the web, or self-hosted, and supports multichannel sales. The DIY Edition is free; businesses supply their own infrastructure. No transaction fee is listed, and abandoned cart recovery is not available.