Sim Local Discount Code ESIMDISCOUNT10 is a checkout string that reduces your order total by 10% at Sim Local, the Dublin-based travel SIM and eSIM retailer. Because it is a flat percentage rather than a fixed cash amount, the arithmetic is the same on every basket: your total should fall to 90% of the listed price. That makes redemption unusually easy to verify, provided you know where the field lives and what a successful application looks like on screen.
Before you start: buy where a checkout exists
The single most common reason this code does nothing is that there is nowhere to type it. Sim Local is not an app-only brand. It sells travel SIMs and eSIMs through airport stores, staffed kiosks and vending machines as well as online, with airport locations named on its own site including Dublin, London Heathrow, London Gatwick, Brussels, Athens, Madrid and Copenhagen, plus US airport partnerships and an exclusive UK airport distribution partnership with WHSmith Travel held since 2017.
A vending machine has no discount field. Neither does a counter transaction. ESIMDISCOUNT10 is an online mechanism, so the redemption has to happen on the website or in the app. If you first met the brand in a terminal and want the 10%, the practical move is to buy before you travel rather than at the gate. That has a second benefit: an eSIM activates within minutes through the app or emailed instructions, with no physical SIM swap, so buying in advance does not mean waiting around for delivery.
It is also worth knowing what you are buying from. Sim Local was founded in 2011 by Irish entrepreneur Killian Whelan, is headquartered in Dublin with an office in London, and retails plans from operators including EE, Orange, Lycamobile, Three, AU (Japan), True, Digicel and Mobifone. Its main site is simlocal.com, with an eSIM sub-site at esim.simlocal.com run by the same company, and it publishes apps for iOS and Android. You are buying network access through a retailer rather than directly from one carrier.
Step by step: where the code goes
Checkout layouts differ between stores and shift with redesigns, so treat the following as the shape of the process rather than a description of specific buttons.
Pick your destination and plan on the website or in the app, and add it to your basket. Choose the size and coverage that actually fit the trip at this stage — before any discount is involved.
Move through to the checkout rather than trying to apply anything from the basket preview. The discount field is usually part of the payment flow.
Look for a field labelled discount code, promo code, voucher or coupon. It sits near the order summary in most layouts, and is sometimes tucked behind a small expandable link rather than shown as an open box.
Type ESIMDISCOUNT10 exactly as written: capital letters, no spaces, no trailing space pasted in from a copy. Then press the apply or submit control next to the field.
Wait for the summary to refresh, then read it. You are looking for a named reduction line and a lower total, not just a message saying the code was accepted.
Only complete payment once you have seen the total drop. You cannot backdate a code yourself after paying, and chasing it afterwards means relying on support.
If you cannot see any field on the first checkout screen, do not conclude it is absent. On many stores the discount box only appears after an email address has been entered or a payment method selected. Work all the way through to the final review step, the one that shows the total you are about to be charged, before deciding the option does not exist.
What a successful redemption looks like
A flat percentage code produces a very predictable confirmation, which is the main thing to like about it. Three signals together mean the code has landed:
A line in the order summary showing the reduction, usually labelled with the code itself or with the word discount.
A new total that is nine-tenths of the pre-discount figure. If the listed price was $93.50 for the 100GB, 116-country, 31-day global plan, the total should read $84.15 — a saving of $9.35.
The same reduced total carried forward onto the payment screen and, afterwards, onto the confirmation email or in-app receipt.
Doing the mental check is quick. Drop the last digit of the price to get roughly 10%, then subtract. On the global plans listed on the research date, the pattern ran like this: 50GB across 117 countries for 31 days at $70.25 became $63.23, a saving of just over $7; 30GB across 71 countries for 30 days at $47.00 became $42.30; 20GB across 72 countries for 31 days at $35.00 became $31.50; 12GB across 71 countries for 30 days at $20.00 became $18.00; and 3GB across 109 countries for 31 days at $10.50 became $9.45. Those are the global plans as listed on that date and the only prices quoted here, but the ratio holds whatever your basket contains.
If the code will not apply
Work through the cheap explanations first, because most failed redemptions are mechanical rather than a sign the code is wrong for you.
Re-enter it by hand instead of pasting. Copying from a page often carries an invisible leading or trailing space that some fields reject.
Check the characters. ESIMDISCOUNT10 ends in the numerals one and zero, not the letters I and O.
Confirm you are in the checkout and not a basket summary, and that you have reached the final review step where the field sometimes first appears.
Try the other surface. Sim Local runs a website and apps for iOS and Android, so if one flow is giving you trouble the other is worth attempting.
Empty the basket and rebuild it with a single item. A code that applies to some products and not others will often behave clearly when only one plan is in the order.
Take a screenshot of the error and contact support before paying rather than after. Paying at full price and hoping for a retrospective adjustment puts you in a weaker position.
What the terms do not tell you
Several conditions that would normally decide whether a code works are simply not published for ESIMDISCOUNT10. It is not stated whether the code covers every plan — local and regional as well as global — or physical SIMs bought online, whether it functions in the app as well as on the website, or whether any minimum spend, expiry date, first-order restriction or per-customer limit applies.
That sounds unsatisfying, but it points to a clean practical rule: let the checkout be the arbiter. Enter the code, read the summary, and accept what it tells you. The order total is the only authority that matters at the moment of purchase, and it either drops to nine-tenths or it does not.
Choose the plan first, then redeem
A percentage code rewards nothing except spending more, so the order of operations matters. Ten per cent off a plan twice the size you need is still a worse result than paying full price for the right one.
There is a specific trap in the plan list worth checking before you commit. Country counts do not rise with data allowance. The 3GB plan listed 109 countries while the 30GB and 12GB plans listed 71 and the 20GB listed 72, and the 50GB plan listed 117 against the 100GB plan's 116. A bigger bundle is not automatically a wider one. If your trip crosses borders, read the destination list attached to the specific plan. The company advertises more than 150 countries and regions overall, and its about page refers to plans from over 100 countries; both are its own figures.
While you are on the plan page, note whether the plan includes calls and SMS or is data-only — calls and texts are described as available in popular destinations. The company also advertises up to 10GB of full-speed data daily without throttling, which is its own claim and not a claim of unlimited data, and network generation is 4G, 5G or 3G depending on the plan and the local network.
After you have paid
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.