Store Setup

10 Must-Have BASE Apps to Extend Your BASE Store

#BASE #BASE Apps #store setup #extensions

Sep 21, 2026

Read time: approx. 6 min

Leap Editorial Team

A team of e-commerce business experts

10 Must-Have BASE Apps to Extend Your BASE Store

Quick Overview: Are You Settling for BASE's Default Feature Set?

BASE's biggest draw is how quickly you can start selling right after opening a store — but the default feature set eventually runs into limits, whether that's needing region-specific shipping rates or the ability to issue delivery slips. That's where "BASE Apps," BASE's extension marketplace, comes in. This guide walks through the basics of BASE Apps — the difference between free and paid — the must-have Apps worth installing right after launch, the Apps that actually move the needle on sales, and the basic steps for installing and configuring them, all grounded in official sources. Use it to figure out which features your own store actually needs.

What Are BASE Apps? Free vs. Paid

BASE Apps is BASE's collection of extensions, installable from the admin dashboard and organized into 11 categories — things like setting shop rules, setting product rules, designing your shop, managing and shipping orders, attracting customers, and boosting sales. The vast majority of Apps are free; paid ones are limited in number. For example, "Hide BASE Logo" runs ¥500/month, and "Fraud Payment Guarantee" starts at ¥980/month. Some free Apps also have optional in-App purchases, where the core functionality is free but advanced features carry a charge — worth checking the pricing page for each App before installing.

Must-Have Apps Right After Launch

In the early days of running a store, it's worth prioritizing the Apps that build a solid operational foundation.

Detailed Shipping Settings: Lets you set shipping fees at the product level, broken down by domestic and international region. You can also configure free shipping above a purchase threshold — a big jump in flexibility over the default shipping setup.
Category Management: Lets you assign and update categories per product. As your catalog grows, whether products are properly categorized has a real impact on how easily shoppers browse.
Delivery Slip Download: Generates and downloads a delivery slip tied to each order's information with a single click — print it and use it directly when shipping.
Block List: Automatically blocks purchases from problematic users, directly reducing operational risk before issues arise.
Age Verification: Adds an age-check step before purchase — a must if you sell products like alcohol that legally require it. Note that BASE prohibits selling regular tobacco outright; nicotine-free e-cigarettes are the sole exception, allowed only once you've met BASE's proof requirements. And for alcohol, installing this App alone isn't sufficient — you also need to meet the legal requirements for selling alcohol, including holding the appropriate license.

Apps That Actually Drive Sales

Once the operational basics are covered, it's worth looking at the promotional Apps that help grow sales.

Coupons: Issue time-limited discount coupons — an easy way to attract new customers or nurture repeat buyers.
Reviews: Display customer reviews on product pages, building trust with first-time visitors and helping push them toward a purchase.
Email Newsletter: Send emails to customers — but only ones who opted in, either by checking "receive shop updates" at checkout or signing up through a form on your shop page, and capped at 3 sends per day. Useful for ongoing touchpoints like new product announcements or sale notices.
Delivery Date Settings: Lets customers choose a delivery date or time window, and lets you set holidays or blackout dates — worth adding once revenue picks up, to keep shipping operations from getting chaotic.
Product Search: Adds a search box to your shop, searching against product name, product description, and category name. SKU/product code isn't one of the searchable fields — if you want SKU-based search, that's a separate "Product Code" App. The bigger your catalog gets, the more this pays off.

There's also an App for switching to a custom domain, and one that displays approximate prices in 34 currencies and switches fixed shop text to English. Note that the latter only affects fixed interface text — it doesn't auto-translate content you've written yourself, like product descriptions. Both are worth considering once branding or cross-border sales come into view.

Basic Steps to Install and Configure

Installing a BASE App is straightforward: find the one you want under the "Apps" menu in your admin dashboard and click "Install." Once installed, a dedicated settings screen for that App appears in your dashboard, where you configure the specifics — shipping amounts, coupon discount rates, which products require age verification, and so on. What you need to configure and prepare varies by App — for something like Detailed Shipping Settings, where you're setting conditions by region and amount, it helps to have your own shipping rate sheet on hand beforehand. Most Apps can be disabled or uninstalled from your dashboard, though some come with conditions attached, and Apps tied to external service integrations aren't always a simple toggle-off — worth checking each App's own documentation. Also note that paid Apps auto-renew unless you disable them.

FAQ

Q. Is there a limit to how many BASE Apps I can install?

A. We couldn't confirm an explicit cap on App count from official sources. That said, more Apps means more settings to manage in your dashboard, so it's worth being selective and installing only what you actually need. A practical approach is to start with the must-have Apps covered here, then add sales-boosting Apps as you get more comfortable running the store.

Q. Do paid Apps come with any costs beyond the monthly fee?

A. It varies by App. Some charge a flat monthly rate; others are free for core functionality with optional in-App purchases for advanced features. It's worth checking each App's pricing page before installing.

Q. I'm not sure which App to install first.

A. Priority depends on what you're selling, but generally it makes sense to start with foundational Apps like Detailed Shipping Settings and Block List, then add sales-boosting Apps like Coupons and Reviews once things are running smoothly. If you sell a product that legally requires age verification, like alcohol, install the Age Verification App first.

Summary and Key Takeaway

BASE Apps let you add functionality as your store's needs evolve. Installing foundational Apps like shipping settings and a block list right after launch, then adding sales-boosting Apps like coupons and reviews once things gain traction, lets you grow your store step by step without overextending. What matters isn't installing everything at once — it's identifying what your store actually needs right now.

Picking and combining extensions like BASE Apps one by one can feel like a lot of work when you're just getting started. Leap offers an AI E-Commerce Agent that supports building and running an e-commerce site entirely through conversation with AI, handling everything from choosing the right features to implementing them. If you don't have the time to build this out yourself, take a look at what Leap offers.

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