Ubigi Promo Code EDC10 applies a 10% discount to Ubigi travel eSIM data plans, deducted from the plan price at checkout. Most people buy a travel eSIM on the same phone that will run it, which means the code gets typed on a small screen, often in a hurry, sometimes in an airport. That changes very little about what the discount does and quite a lot about how easy it is to apply correctly. This guide is about the mobile side of the purchase: where the promo field sits in the app compared with a phone browser, the small-screen behaviours that make people miss the discount, and the order of operations that avoids a wasted purchase.
What the code does, and what it leaves alone
EDC10 is a percentage reduction entered in the promo code field at checkout. It reduces the price you pay and nothing else. The data allowance, the validity window and the list of covered destinations all come from the plan you selected, not from the code. A 10% reduction means you pay 90% of the plan price, and that price is calculated before any local taxes.
Two consequences follow. First, the saving scales with the plan: 10% off a global monthly plan returns considerably more in absolute terms than 10% off a three-day country plan. Second, there is no point hunting for a bigger discount by combining offers. Promotional codes are normally limited to one per transaction and cannot be stacked with another active offer. The code will not extend validity, add data, or turn a capped plan into an unlimited one.
App or mobile browser?
Ubigi's consumer travel plans are sold through the Ubigi eSIM store and the Ubigi mobile app. Both are legitimate routes to the same catalogue, and the promo code field exists in the checkout flow either way.
The practical difference is polish. The website purchase flow feels dated next to newer rivals, and on a narrow screen a dated layout tends to get worse rather than better: fields stack awkwardly, summary panels collapse below the fold, and the link that opens the discount box can end up in a place your thumb does not naturally go. The mobile app is the smoother route of the two. If you already have the Ubigi profile installed and the app on your phone, start there.
Reasons to use the app
The flow is designed for a phone screen rather than squeezed into one
Your existing profile is already recognised, so top-ups can be added to an existing plan rather than starting a purchase from scratch
Fewer layout surprises between selecting a plan and reaching the code field
Reasons to use a mobile browser
You have not installed the app yet and do not want to before you have decided on a plan
You prefer to read the full plan detail page, including fair use information, in a normal browser tab you can keep open
You want to compare the destination list of a regional bundle side by side with your itinerary
Where the promo field actually lives on a small screen
On desktop, a discount box usually sits beside the order summary and is visible the whole time. On a phone, that summary is almost always collapsed into a single line you have to tap to expand, and the code field is frequently inside it. That is the single most common reason people pay full price by accident: the field was never missing, it was folded away.
Things worth looking for before you assume the field is absent:
A collapsed row labelled with the order total and a small chevron or arrow — tap it to expand
A short text link rather than a box, worded as promo, coupon or discount code, which opens the input when tapped
A field that only appears after you have chosen a payment method, because some flows put it on the final step
Content below the pay button — on mobile it is easy to treat the first large button you see as the end of the page
If you have scrolled the whole checkout and still cannot find it, rotating the phone to landscape sometimes triggers a wider layout where the summary panel expands by default. Switching between the app and the store in your browser is the other fallback, since the two flows do not present the checkout identically.
Mobile-only quirks that cost people the discount
Small screens introduce input problems that never come up on a keyboard. None are specific to Ubigi, but all of them are worth knowing before you type EDC10 into a narrow box.
Autocapitalise and autocorrect. Mobile keyboards like to capitalise the first character and sometimes reinterpret short strings. Check the field shows exactly what you intended before tapping apply.
Predictive text substitution. If your keyboard offers a suggestion above the field, tapping the space bar can accept it and replace what you typed.
Trailing spaces from paste. Copying a code from a message or email often brings a space or line break with it, and some fields treat that as part of the code.
Password managers and autofill. An overlay can cover the apply button entirely; dismiss the keyboard first so you can see the whole field and the button under it.
Zoom and mis-taps. Phones often zoom into a focused input, which hides the order summary. Zoom back out and confirm the total, not just that the field accepted the text.
Session loss. Backgrounding the browser to check your travel dates in another app can drop you back to an earlier step. Re-check the code is still attached if that happens.
A mobile purchase in the right order
Check your device against Ubigi's compatibility list first, before you look at prices. Recent iPhones, recent iPads and most flagship Android handsets generally support eSIM; budget and older devices frequently do not, and a handset still locked to a carrier may refuse a third-party profile even when the hardware is capable.
Open the Ubigi eSIM store, or the Ubigi app if you already have the profile installed.
Choose your destination: a single country, a regional bundle covering Europe, Asia, the Americas, Africa, the Middle East, Oceania or the Caribbean, or a global plan.
Read the plan detail page on the phone rather than skimming it. If the plan is unlimited, the fair use policy applies and thresholds vary by plan, so the detail page is where that information lives.
Select the data allowance and validity period that match your trip.
Proceed to checkout, expand the order summary, and find the promo, coupon or discount code field.
Enter EDC10 and apply it.
Confirm the 10% reduction appears in the order total before you pay. Do not rely on a confirmation message alone; read the number.
Complete payment. Installation instructions and a QR code are emailed to you, usually within a few minutes.
The QR code problem when you buy on the phone
Buying on the same device you intend to install on creates an obvious wrinkle: the installation instructions arrive by email with a QR code, and a phone cannot easily scan a QR code displayed on its own screen. The app route sidesteps this, since the profile is handled in the app rather than by scanning. If you bought through the browser and only have the email, the alternatives are to open the email on a second screen, or to follow the manual installation instructions included with it.
Either way, do the installation while you still have reliable Wi-Fi at home. Activation requires an internet connection, which is exactly what you do not have when you land. There is also no auto-renewal, so each destination plan has to be activated manually — another argument for having the app on the phone rather than relying on emails you will have to dig out later.
What the phone cannot do once the plan is running
Ubigi travel plans are data-only. There is no local phone number, so the Ubigi line cannot receive SMS verification codes or make standard voice calls. Messaging and calling apps over data work normally. This is standard across the travel eSIM sector, but it matters most on mobile, because the phone in your hand is usually the device your bank sends a one-time passcode to. If that passcode goes to a SIM you left at home, you will find out at the worst possible moment. Sort out app-based authentication before you travel.
Support is also worth factoring in if something goes wrong mid-trip. It runs through email and a help centre rather than live chat or telephone, and reported response times are slower than the sector average. That is a reason to complete installation and a connectivity test at home rather than assuming a problem can be fixed quickly on the road.
Deciding on the provider before you worry about the code
Ubigi is the consumer travel eSIM brand of Transatel, a French mobile network operator and a subsidiary of NTT. Unlike a large share of the eSIM market, which resells wholesale capacity under its own branding, Transatel operates its own core network and holds direct carrier agreements. That shows up as network quality rather than low prices, and it is why Ubigi performs particularly well in Japan, where it runs over NTT Docomo, and across Europe. Coverage spans 200 or more destinations, and one reusable profile works across all of them, so you are not filling your phone's limited eSIM slots.
The trade-off is price. Ubigi is rarely the cheapest option for mainstream tourist destinations, and 10% will not close a larger gap against a budget rival on a short city break where you will use a couple of gigabytes. Choose the provider on coverage and price for your specific destination. Once that decision is made, EDC10 costs nothing to apply and reduces a price you were going to pay anyway — and on a global plan, the percentage is worth more in absolute terms than anywhere else in the catalogue.
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.