Quick Overview: Comparing on One Axis Only — Cross-Border Capability
Plenty of comparisons of BASE, STORES, and Shopify already exist, built around pricing and basic features. But for a business with its eye on eventually going global, what actually matters is a single question: how seriously can each platform handle cross-border e-commerce? This guide deliberately narrows the comparison to that one axis — looking at what BASE's and STORES' international shipping apps can actually do, versus Shopify's built-in multi-language, multi-currency, and duty-calculation features. Use it to decide how to approach things differently depending on whether you're starting small domestically or planning a serious overseas expansion.
BASE's Approach: Convenience Through Outsourced Services
BASE doesn't build full cross-border functionality into the platform itself — instead, it handles overseas support through partnerships with external services. The flagship option is the "International Sales Agent App," which costs ¥980/month (free for the first 90 days) and lets you hand off shipping and overseas customer inquiries entirely to a domestic agent, reportedly supporting cross-border sales to over 190 countries. Separately, a partnership with the logistics service NEOlogi supports shipping to over 150 countries.
BASE's strength in cross-border e-commerce is the convenience of being able to outsource the actual work of international shipping entirely. On the language side, though, the "English/Currency Support" App only switches fixed interface text to English and shows approximate prices across 34 currencies — it doesn't auto-translate content you've written yourself, like product descriptions. Running a genuinely multilingual shop still requires separate translation work.
STORES' Approach: Partnering With WorldShopping BIZ
STORES takes a similar outsourced approach to cross-border sales. Through a partnership with a service called "WorldShopping BIZ," it reportedly supports sales to 228 countries and regions without significantly changing your domestic shipping and operations. It's described as launchable with no setup fee, monthly fee, or shipping cost for the international service itself — the service provider handles order intake, shipping, and inquiries from overseas buyers, while you just send products to a designated domestic warehouse. On the language side, it supports switching to an English-language display.
What BASE and STORES have in common is that neither makes the core e-commerce platform itself multilingual or multi-currency — instead, both outsource international shipping and language support to a specialized external service. That lowers the barrier to entry for a business trying cross-border e-commerce for the first time, but it also means there's a ceiling on how deeply you can customize pricing display, checkout, and the finer details of the product page experience for local customers.
Shopify's Approach: Built-In Through "Shopify Markets"
Shopify takes a different path from BASE and STORES — rather than outsourcing cross-border functionality to an external service, it builds it directly into the platform itself. The centerpiece is "Shopify Markets."
According to Shopify's own materials, Markets lets you localize your store by region and let customers pay in their own currency. Third-party write-ups describe support for up to 20 languages of store display and 130+ currencies (with the number of markets you can configure varying by plan).
Just as important is automatic duty and import-tax calculation. By registering an HS code (tariff classification code) and country of origin for each product and setting up a supported shipping carrier, Shopify can automatically calculate duties and import taxes at checkout and collect them from the buyer. Checking Shopify's own help documentation, we didn't find any explicit plan-based restriction on using this feature (third-party write-ups describe it as a feature that used to be limited to higher-tier plans but is now available more broadly). That said, you'll still need the groundwork — a supported carrier and accurate HS codes.
Where BASE and STORES take the "let a partner service handle it" approach, Shopify takes the "build multi-language, multi-currency, and duty calculation into your own store, end to end" approach.
Matching the Platform to Your Phase of Expansion
Putting the comparison together, here's a practical way to decide:
- Starting small domestically, with overseas sales as a future possibility: Launching on BASE or STORES for the domestic market, then layering on an outsourced service like the International Sales Agent App or WorldShopping BIZ once overseas orders actually start coming in, is a practical staged approach. It lets you take a small first step into cross-border sales while keeping upfront costs low.
- Planning a serious, deliberate push into overseas markets: If you want to build out multilingual product pages, accurate local-currency pricing, and transparent duty/tax display as part of the experience itself, a platform with built-in functionality like Shopify Markets is likely to offer more room to grow over the long term.
Neither approach is objectively "better" — the right choice comes down to what phase your business is actually in, and whether you want to outsource overseas sales or build it as part of your own store experience.
FAQ
Q. Can BASE or STORES handle cross-border e-commerce well enough?
A. Using an outsourced service like the International Sales Agent App or WorldShopping BIZ, you can genuinely get cross-border sales up and running, with shipping and inquiry handling taken off your plate. That said, there's a ceiling on how far you can customize the shop experience itself — multilingual product pages, detailed local-currency pricing, and so on. These options are a good fit if you want an easy first step into cross-border sales.
Q. Are Shopify's multi-language and multi-currency features free to use?
A. As far as we could tell from Shopify's own help documentation, there's no explicit plan-based restriction mentioned for the automatic duty and import-tax calculation feature. That said, you'll still need groundwork like selecting a supported carrier and registering HS codes. For details like the number of markets available per plan, it's worth checking Shopify's current official information before committing.
Q. Can I start on BASE for domestic sales and migrate to Shopify later?
A. Migrating platforms is possible, but it takes real work and planning — product data, your shop's structure, and in some cases carrying over your shop URL (and the SEO value tied to it). If you're already planning a serious cross-border push down the line, it can be more efficient to choose your platform early with that migration effort in mind.
Summary and Key Takeaway
Comparing BASE, STORES, and Shopify on cross-border capability alone reveals a clear design difference: BASE and STORES lower the barrier to entry by partnering with outsourced services, while Shopify builds multi-language, multi-currency, and duty calculation directly into the platform. Neither approach is the single right answer — matching your choice to where your own overseas expansion actually stands, whether that's "I want to try cross-border sales on a small scale first" or "I want to build out a serious overseas market presence," is what leads to a platform choice you won't regret.
That said, choosing a platform with cross-border capability in mind, and building out multi-language and multi-currency support, isn't something most businesses can easily do entirely on their own. Leap offers an AI E-Commerce Agent that supports building, running, and expanding an e-commerce business overseas, entirely through conversation with AI. If you're planning a store build with cross-border expansion in mind, take a look at what Leap offers.
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References
- BASE Launches the "International Sales Agent App" - BASE U
- Easing Cross-Border E-Commerce Concerns on BASE: Leave International Shipping to "NEOlogi" - BASE U
- English/Currency Support App: Can I Sell Overseas and Set International Shipping? - Help | BASE
- STORES Lowers the Cross-Border Barrier Through Domestic Shipping - LOGI-today
- Shopify Markets - Shopify
- Charging Duties and Import Taxes - Shopify Help Center
- Shopify Pricing Plans - Shopify