How to Build Your Own eSIM Store: A Step-by-Step Guide for 2026

Travel data is one of the easiest digital products to sell: there is nothing to ship, every traveller needs it, and the customer gets it in seconds. This guide shows how to build your own eSIM store in four steps, what it costs, and the mistakes to avoid.

What an eSIM store needs

Every eSIM shop, however it is built, has the same four parts:

You can build these yourself with an eSIM API, or take a hosted store where all four already work. The rest of this guide follows the hosted route, because it is the fastest way to start.

Step 1: Create a free partner account

The store runs on a free Fully Signal partner account. The same account also gives you the partner panel and the API, with no monthly fee. You top up a prepaid balance: each eSIM your store sells is paid from it at its wholesale price.

Step 2: Choose a package

Every package has every feature. The fee covers the store, its hosting and its updates; it does not cover the eSIMs. You can move up to a bigger package at any time and only pay the difference for the rest of the month.

Step 3: Brand it and connect Stripe

In My Store you:

• upload your logo and pick your colours,
• set your retail prices, per plan or as one margin across the catalogue,
• connect your own Stripe account, so customers pay you directly,
• add the email address your order and delivery emails come from.

Your customers never see our name: the store, its emails, the QR codes and install pages all carry your brand.

Step 4: Add your domain and open

Point your own domain (or a subdomain such as shop.yourbrand.com) at the store with one DNS record, and SSL is set up for you. On Growth and Unlimited you can take a free domain instead, which we register, point and renew while your package is active. A private preview link works from the first minute, so you can check everything before you publish.

What it costs in practice

Your costs are the package fee, the wholesale price of each eSIM you sell and Stripe's card fees. Your income is everything you charge above the wholesale price. There is no commission on your sales. More detail in how much an eSIM store costs to run.

Mistakes to avoid

• Pricing at wholesale plus a few cents. Card fees and refunds eat thin margins. See how to price eSIM plans.
• Launching with no traffic plan. A store is a shop, not an audience. Plan where your first customers will come from: your existing clients, your social channels, search (eSIM store SEO).
• Letting the balance run low. The store pays each eSIM from your balance; switch on auto top-up so it can always deliver.

FAQ

Do I need to know how to code to build an eSIM store?

No. With a hosted store you set everything from forms: logo, colours, prices, Stripe, email and domain. Coding is only needed if you build your own shop on the API.

How long does it take to build an eSIM store?

The store is ready to set up as soon as the first month is paid. Branding takes minutes; connecting Stripe and your domain's DNS record is usually the longest part.

How much does it cost to start an eSIM store?

From €50 a month for the Trial package, plus the wholesale price of each eSIM you sell, paid from a prepaid balance. The partner account itself is free.

Who receives my customers' payments?

You do, in your own Stripe account. Fully Signal takes no commission on your sales.