Sim Local Voucher ESIMDISCOUNT10 is a 10% discount code for Sim Local, the Irish travel-eSIM retailer at simlocal.com. It is a flat rate rather than an "up to" ceiling, which means the arithmetic is simple: whatever the plan costs on the product page, you pay 90% of it once the code is accepted. This article covers what the provider actually sells, what a "voucher" means in Sim Local's own vocabulary, how to enter the code, what the refund rules are if the plan turns out to be wrong for you, and an honest read on who should bother.
Voucher, coupon or discount code — what the word means here
Shoppers search for the same thing under three names. "Voucher" tends to suggest a stored-value credit; "coupon" suggests a paper cut-out; "discount code" suggests a string typed into a box. At Sim Local the distinction collapses. All three describe one mechanism: a code entered at checkout that reduces the price of the order. Sim Local's own affiliate page refers to "unique referral links and coupons", so "coupon" is the store's word for it, and the field you type into is the discount or coupon field at checkout.
What ESIMDISCOUNT10 is not is a gift card or a balance. Nothing is loaded to your account, nothing is redeemed in instalments, and there is no credit left over if the discount exceeds some threshold. It reduces a single order total by a tenth at the moment you check out. If you leave the field blank, the order goes through at full price and the code is not applied retroactively.
One further distinction is worth drawing, because it causes confusion. Sim Local separately runs a refer-a-friend scheme, in which the referrer receives US$5 per friend and the referred friend gets 10% off a first purchase with a minimum order of £/€/$20, applied automatically at checkout and usable once. That is a different mechanism from a typed voucher, and the two should not be mentally added together or assumed to combine. The number on the checkout screen is the only reliable answer about what you are paying.
Who Sim Local is
Sim Local — legal name Sim Local (Ireland) Ltd — sells travel eSIMs online, through its own iOS and Android apps, and through physical stores in airports. The company says it has served 4 million customers worldwide. Coverage is advertised as 200+ destinations and 150+ countries on local networks, with 5G where available. Those figures are the company's own.
The catalogue on the homepage splits into a handful of plan families:
Single-destination eSIMs for one country or region
Multi-destination eSIMs for trips that cross borders
Unlimited eSIM Plans
eSIM Plans with Calls and Texts, for travellers who need a number rather than just data
Plans aimed at students
Delivery is digital. The store describes "one-click downloads in the Sim Local app" and says activation takes "a couple of minutes". Support runs on several channels: 24/7 messaging on WhatsApp, email to customerqueries@simlocal.com, a Zendesk help centre, and face-to-face help at the airport stores. The store says tickets are typically answered within 24 hours. Sim Local also advertises a price match on UK eSIM plans.
What 10% works out to in practice
Because the discount is flat, you can do the sums before you commit. The homepage lists starting prices for a destination's cheapest plan — larger data allowances cost more, so treat each of these as a floor rather than a typical basket.
UK 20GB from $13.50 — a 10% reduction leaves $12.15
US 3GB from $7.25 — leaves about $6.53
Japan from $13.00 — leaves $11.70
Thailand 3GB from $5.75 — leaves about $5.18
France 1GB from $4.00 — leaves $3.60
Germany 1GB from $4.00 — leaves $3.60
Canada 1GB from $5.00 — leaves $4.50
The honest observation here is that a tenth off a small starting plan is small in absolute terms. Where the code earns its keep is on bigger orders: a long trip, a large data allowance, a multi-destination plan, or several eSIMs bought at once for a family or a group. The percentage is constant, so the saving scales with the basket.
How to apply the code
Pick your destination or destinations first, and be honest about how much data you actually use — maps, messaging and the occasional email need far less than video streaming.
Choose the plan family that matches your needs: data-only, unlimited, or a plan with calls and texts if you need a number.
Check your device supports eSIM and is not carrier-locked before you pay. This is generic advice for any eSIM purchase and it prevents most of the problems people run into.
Go to checkout and find the discount or coupon field. On most stores it sits near the order summary, sometimes behind a small "have a code?" link.
Enter ESIMDISCOUNT10 exactly as written, with no spaces before or after, and apply it.
Confirm the order total has dropped by a tenth before you pay. If it has not, the code has not attached, and paying anyway will not fix it later.
Complete payment and follow the activation instructions when you arrive, or shortly before, depending on how the plan's validity window works.
If the code does not take, the usual culprits are a stray space from copy-and-paste, autocorrect capitalising or altering characters on a phone keyboard, or a cached checkout session. Retyping the code by hand on a fresh browser tab resolves a surprising share of cases. It is not published whether the voucher works inside the app as well as on the website, so if one route refuses it, trying the other costs nothing.
The refund policy is the part worth reading
Sim Local's refund terms are more generous than most travel-eSIM stores, and they hinge on one boundary: activation. The store states that if you have not activated your eSIM, you can request a full refund within 14 days of purchase, which it calls "No Quibble Refunds". Once the eSIM is activated, it is considered used and no longer eligible for a refund. Activation also waives cancellation rights under consumer law, and the policy page references the EU Consumer Rights Directive on this point.
There is one carve-out. If the eSIM could not be activated because of a technical issue on Sim Local's side or the network's, the store says it will refund even outside the 14 days. Refund requests go by email to customerqueries@simlocal.com with the order number and the purchase email address, and refunds take 5–10 business days depending on your bank.
The practical lesson: buy early if you want the safety net, but do not activate until you are reasonably sure the plan is the one you want. Buying in advance and leaving it dormant keeps the 14-day window meaningful. Activating on the sofa at home "just to check it works" spends that protection.
Who this suits
The voucher suits travellers who were already going to buy a Sim Local eSIM and want a predictable tenth off. It suits larger orders more than minimal ones, for the arithmetic reasons above. It suits people who value the airport-store fallback — if something goes wrong at the gate, there is a counter with a human at it, which is unusual in this category. And it suits anyone who appreciates a refund policy written in plain terms with a single clear cut-off.
It suits you less if you are still comparing providers on coverage or network quality. Sim Local does not publish which local networks it uses in any given country, so a 10% saving cannot be weighed against the specifics of what you are connecting to. In that situation, decide on the plan first and treat the discount as a bonus on the decision, not as the reason for it.
Things the code does not tell you
Being straight about the gaps is more useful than filling them with guesses. It is not published whether the voucher applies to every plan family — unlimited, calls-and-texts, student and multi-destination plans may or may not all be eligible. No minimum spend, expiry date, per-customer limit or first-order-only condition is published for this code; the £/€/$20 minimum belongs to the refer-a-friend scheme, not necessarily to this one. Sim Local does say that its own discount codes are single-use and applied at checkout, which is a reasonable expectation to carry into the process without treating it as a stated rule for this voucher.
Verdict
ESIMDISCOUNT10 is a straightforward flat 10% off at a retailer with a broad catalogue, digital delivery in minutes, round-the-clock messaging support and a refund policy that is clearer than most. The saving is modest on the cheapest starting plans and more meaningful on long trips, big allowances and group orders. Enter it in the discount or coupon field, check the total moves before you pay, and hold off on activating until you are sure. That is the whole of it.
Promotional terms, eligibility and values are set by the provider and can change at any time. Always confirm the current terms on the official site before signing up or completing a purchase.

