aloSIM is one of the quieter names in travel eSIMs. No sponsorships, no airport billboards, just a simple app and a long country list. That is a decent way to run a company, and the product works.
It is also, plan for plan, around three times our price for the same data on the same networks. This article works through where that gap sits and where aloSIM still makes sense.
Every price in this article was read off each provider’s own website on 25 August 2026, in US dollars, from a US connection. Providers change prices often, so check the live page before you buy. Where the other provider is the better choice, this article says so.
Japan, read from both providers’ own sites on 25 August 2026, in US dollars. Only sizes both companies sell are shown.
Is MegaEsim cheaper than aloSIM?
Yes, on every plan size both companies sell. A 5GB plan for 30 days in Japan is $3.78 with us and $11.00 with aloSIM. The smaller plans show the same pattern.
aloSIM also sells a 2GB 15 day plan at $6.50. We do not offer 2GB in Japan, so it is left out of the table rather than compared against something different.
Does the gap hold outside Japan?
It does, and in some countries it widens considerably. Here is the same 5GB 30 day plan across six destinations, both providers checked on the same day.
| Destination | MegaEsim | aloSIM | Difference |
|---|---|---|---|
| Japan | $3.78 | $11.00 | $7.22 |
| Turkey | $3.22 | $10.00 | $6.78 |
| Thailand | $3.78 | $8.00 | $4.22 |
| Albania | $5.52 | $14.00 | $8.48 |
| Georgia | $5.35 | $18.00 | $12.65 |
| Morocco | $7.03 | $28.00 | $20.97 |
Morocco is the widest gap in this set at $28.00 against $7.03, and Thailand the narrowest at $8.00 against $3.78. Wholesale data genuinely costs different amounts in different markets, which is why neither of us charges the same everywhere. We publish the underlying picture in the eSIM Price Index.
What does aloSIM do better than MegaEsim?
Their app is clean and the buying flow is simple, which matters if you are not confident with phone settings. They have a long country list. And they have been around long enough to have a real support history.
They also run frequent promotions, so the gap on any given day can be narrower than the list prices suggest. If you catch a sale, check the maths again rather than assuming this article is still current.
If you already have an aloSIM account with credit in it, using that up first is obviously sensible. Nothing here is an argument for wasting money you have already spent.
What does the difference add up to over a year?
One plan is a rounding error. A habit is not. Six trips a year with a 5GB plan each time costs $66.00 on aloSIM and $22.68 with us, a difference of $43.32 for identical data on identical networks.
For a family it multiplies again, because everyone needs their own eSIM. Four people on one trip is four plans, not one.
None of that is an argument for buying the cheapest thing on the internet. It is an argument for checking, once, whether the provider you default to is charging you three times what the same connection costs elsewhere.
Is aloSIM unlimited, or is it per gigabyte?
Per gigabyte, like us. You buy a fixed amount of data with a fixed validity, and when it runs out you top up or buy again. There is no unlimited tier to weigh up, which actually makes the comparison simpler than it is against Holafly.
That also means neither provider throttles you. Your speed is whatever the local network gives you until the data is gone.
If you genuinely want unlimited, neither of us is the right answer and you should look at a provider built around it. We compared that model in Holafly vs MegaEsim.
Who should buy which?
| If this is you | Pick | Why |
|---|---|---|
| You want the lowest price for the same data | MegaEsim | Three times cheaper on the plans both sell |
| You already have aloSIM credit | aloSIM | Use what you have paid for first |
| You want a simple app and buying flow | Either | Both are straightforward, this is preference |
| You want unlimited data | Neither | Both sell fixed data, look at Holafly instead |
| You need a phone number for bank texts | Neither | Keep your home SIM active alongside |
That table is deliberately not five rows of us winning. aloSIM is a competent product and there are sensible reasons to stay with it.
Is the coverage and speed the same?
In the destinations we both sell, usually yes. Both aloSIM and MegaEsim buy wholesale roaming access from the same local operators, so in Japan that means Softbank and its partners either way.
Neither provider throttles a standard per gigabyte plan. Your speed comes from the mast you are standing under and the phone in your hand, not from the logo on the plan.
Before buying from anyone, check which local network the plan uses. Every one of our country pages names the operators, for example the Japan eSIM page. If a provider will not tell you, that is worth noticing.
Which is easier to install?
Near identical, because eSIM installation is a GSMA standard rather than anything either company invented. You buy, you get a QR code, you scan it in phone settings, and you switch on data roaming when you land.
The thing that matters more than the provider is timing. Install at home on wifi before you fly. The plan does not start counting until it first connects abroad, so there is no penalty for installing early and a real risk in leaving it until you land. Our setup guide covers iPhone and Android.
Do either give you a phone number?
Neither does as standard. Both aloSIM and MegaEsim sell data. Calls and texts work through WhatsApp, iMessage or any internet calling app, but a bank text sent to your home number will not arrive, and you cannot dial emergency services on the plan.
Keep your home SIM in the phone with its data roaming switched off. You keep your number for texts and emergencies, and the eSIM carries the internet.
What happens when you cross a border?
A single country plan stops at that country's edge, which looks identical to a fault. Buy a Japan eSIM, take the ferry to South Korea, and you have no data until you buy something else.
Both providers solve it with regional plans covering a group of countries on one profile. If your trip touches more than two countries, a regional plan is almost always cheaper than buying each separately.
The trap is assuming a regional plan covers every country in the region. They rarely do. Ours are printed in full on the Europe and Asia pages, including the countries that are not included.
How were these prices checked?
Worth stating, because comparison articles have a reputation for quoting whichever number flatters the author.
Every aloSIM figure was read from their own live website on 25 August 2026, from a United States connection with the currency showing US dollars. That detail matters. On a United Kingdom connection several providers in this category display pounds, and quoting that number as dollars understates their price by roughly a third.
The MegaEsim figures come from the same database our checkout reads. None of these are launch offers or recommended retail prices.
Prices move. If you are reading this months later, treat the shape of the comparison as the durable part and check the live numbers yourself.
How much data do you actually need?
This decides more than the price comparison does, and most people guess badly.
Maps, messaging, a few searches, some scrolling and the occasional video comes to roughly 300MB to 700MB a day for most travellers. On that basis a week is about 3GB to 5GB and two weeks about 6GB to 10GB.
Streaming video daily or tethering a laptop changes it completely and pushes you towards a larger plan or an unlimited one. Your phone already knows the answer: settings will show last month’s usage at home, and travel use is usually lower because you are outside walking rather than on the sofa.
Our guide on how much data you need breaks it down by activity with real numbers rather than guesses.
What do people get wrong when they switch provider?
Three mistakes, over and over.
Deleting the old eSIM too early. There is no need to remove the old profile before installing a new one. Modern phones hold several. Keep the old one until the new one is connected, then tidy up.
Installing at the destination. Install before you fly, while you have reliable internet. The profile download needs a connection, and the moment you need it most is the moment you are least likely to have one.
Leaving the home SIM’s data roaming on. This is the expensive one. The eSIM handles your data, but if your normal carrier’s roaming stays enabled the phone can quietly fall back to it and bill you at full rate. Switch roaming off on the home line and on for the eSIM line. Our roaming switch guide has the exact steps.
What happens when something goes wrong?
We are small enough that an email reaches a person who can look at your actual eSIM, and we answer within 24 hours. There is no queue to escalate through and nobody needs permission to fix something.
Being small is not automatically better. A larger provider covers more hours and more languages, and on a bad day at an airport that matters.
Most problems are not the provider at all. Nine times out of ten it is data roaming switched off or the phone using the wrong line for data, which is fixable in under a minute once you know where to look.
What should you check before buying any travel eSIM?
Which network you will be on. A plan is only as good as the local operator behind it.
Whether the displayed price is the checkout price. Put the plan in the basket and look at the total before entering card details.
When validity starts. On most plans the clock starts when the plan first connects, not when you buy. Some providers start it at purchase, which quietly costs you days.
What happens when the data runs out. Some plans stop dead, some slow down, some let you top up without reinstalling.
The refund terms for an eSIM you never install. Ours can be refunded for six months if the QR code was never scanned. Check what the other provider offers.
- ✓197 countries, plans from $1.29
- ✓Hotspot included on your normal allowance
- ✓The price on the page is the price charged
- ✓Unused eSIM refundable for 6 months
Frequently asked questions
Is aloSIM cheaper than MegaEsim?
No. On every plan size both companies sell in Japan, MegaEsim is lower. A 5GB 30 day plan is $3.78 with us against $11.00 with aloSIM, checked on 25 August 2026.
Do aloSIM and MegaEsim use the same networks?
In most destinations yes, because both buy wholesale roaming from the same local operators. Our country pages name the specific networks so you can check before buying.
Is MegaEsim a real company?
Yes. We trade as Soha Trading LLC-FZ, registered in Dubai, United Arab Emirates, and the full address is on our terms page. Payments go through Stripe.
Can I keep my normal phone number?
Yes. A travel eSIM is data only and sits alongside your existing SIM. Keep your home line active for calls and texts, switch its data roaming off so your carrier cannot bill you, and let the eSIM carry the internet.
Is the price I see the price I pay?
On our site the figure on the page is read from the same database as the checkout, so it does not change at payment. Always confirm this with any provider before you buy, because teaser pricing is common in this category.
What if the eSIM does not work when I land?
Nine times out of ten it is data roaming switched off, or the phone using the wrong line for data. Our eSIM troubleshooting guide works through the fixes in order, whichever provider you bought from.
aloSIM is a trademark of its owner. MegaEsim is not affiliated with, endorsed by, or sponsored by aloSIM. Prices were read from each provider's own website on the date stated above and are shown in US dollars.
