Airalo and Holafly are the two names most people meet first when they start shopping for a travel eSIM, and the most common question about them is which is better. That question has no clean answer, because the two companies are not selling the same product. One is a marketplace built on paying for a fixed amount of data; the other is built on not counting data at all. Almost every real difference between them follows from that.

This is a comparison of the two of them. We sell travel eSIMs ourselves, which you should factor in, so this piece deliberately does not argue that you should buy ours instead. It is about which of these two fits which kind of trip.

In this guide:

The core difference: buckets versus flat rate

Airalo works like a marketplace. You pick a destination, pick a bucket of data, one gigabyte, three, ten, pick a validity window, and pay once. When the data runs out, you top up. Prices start low because the smallest buckets are genuinely small, and the model rewards travellers who know roughly how much data they use.

Holafly works the other way. Its headline product is an unlimited-style plan sold per day, so instead of estimating your usage you buy the number of days you will be away. There is no bucket to run down and no top-up to remember. That is the entire proposition, and the price reflects it.

Neither model is better. They are answers to different anxieties: one to “I don’t want to overpay”, the other to “I don’t want to think about it”.

One caveat worth stating plainly, because it applies to Holafly and to every other unlimited plan in this category including our own: unlimited is governed by a fair usage policy. In practice that means full speed up to a daily threshold and reduced speed after it. Anyone describing an unlimited travel plan as having no ceiling is describing marketing rather than a network.

Pricing, and when each one wins

Prices move, so treat these as a snapshot rather than a table to rely on. Checked on 4 September 2026, Airalo’s Japan page advertised plans from $4.00 USD, which buys a small fixed bucket rather than a week of heavy use.

The useful comparison is not the headline price but your daily burn:

  • Under about 1GB a day, maps, messaging, occasional browsing, photos uploaded on hotel wifi. A fixed bucket is comfortably cheaper, and Airalo’s model suits you.
  • Around 1 to 2GB a day, the two converge. Work out the total for your actual trip length rather than guessing.
  • Above about 2GB a day, video calls, streaming, tethering a laptop, uploading video. A flat daily rate stops you topping up repeatedly, and Holafly’s model starts to make sense.

Most travellers overestimate their usage abroad, because a lot of heavy activity happens on hotel or café wifi. If you are unsure, our data calculator works it out from how you actually use your phone, and the answer is usually smaller than people expect.

Coverage and catalog

Both advertise roughly 200 destinations, and on the question of whether it will work where you are going they are broadly comparable. Check your specific country on both sites; headline destination counts are marketing numbers and include places you will never visit.

Where they differ is how the catalog is presented. Holafly publishes a great deal more of it: individual pages for several hundred cities, for US states and Canadian provinces, even for cruise routes. Airalo’s catalog is organised by country and region, with no city-level pages. If you search for “eSIM Melbourne” or “eSIM Arizona”, Holafly has a page for it and Airalo does not.

That is a difference in merchandising rather than in coverage. A city page and its parent country page usually sell the same underlying plan.

Apps, delivery and setup

Airalo is app-first by design. Buying, installing, topping up and checking remaining data all run through the app, which is published in more than 50 languages. If you like having one place to manage everything, that is a genuine advantage. If you resent installing an app to buy a week of data, it is a genuine cost.

Holafly sells more of its volume through the web, though it also has an app. Both deliver an eSIM profile you install on your phone, and both behave the same way once installed: the profile sits alongside your normal SIM in dual SIM mode, your home number stays reachable for calls and texts, and the travel plan carries the data.

Whichever you choose, install the profile before you fly, over wifi, and leave the line switched off until you land. Installation needs a working connection, which is exactly what you will not have in the arrivals hall.

What their reviews actually say

This is the sharpest difference between them, and the one most comparisons skip.

Checked on Trustpilot on 4 September 2026:

  • Holafly, 4.7 out of 5 from 109,946 reviews, 84% five-star, 6% one-star.
  • Airalo, 4.1 out of 5 from 41,739 reviews, 60% five-star, 17% one-star.

Airalo’s app-store ratings tell a happier story, 4.7 on iOS and 4.6 on Android, and its homepage leads with those rather than with its Trustpilot score. That is a reasonable commercial decision and also a revealing one.

Two caveats before weighing this too heavily. Review platforms capture support experiences far more than network quality, so a one-star review is usually about a refund or an activation that went wrong rather than about coverage. And volume matters: both samples are large enough to mean something, which is not true of most brands in this category.

Read the one-star reviews on both, not the averages. They tell you what happens on the worst day of your trip, which is the day the choice actually matters.

Which one to pick

Choose Airalo if you have a rough idea of your data usage, you want the lowest price for a short trip, you are happy managing it in an app, and topping up mid-trip does not bother you.

Choose Holafly if you would rather not think about data at all, you are a heavy user or sharing one phone between people, you are going somewhere Airalo has no specific page for, or the support record matters more to you than the headline price.

Choose neither if your trip is very short and your carrier already includes the destination, or if you are going somewhere with genuinely poor mobile coverage where no eSIM will help. We have written about when a travel eSIM is the wrong purchase, including our own.

A note on comparing like with like

The hardest part of comparing these two is that the units do not match. A bucket plan is priced per gigabyte and a flat plan is priced per day, so any table putting them side by side has already made an assumption about how much data you use. That assumption is doing most of the work in the answer.

The way out is to convert both into the same number: total cost for your actual trip. Take the number of days, take an honest estimate of daily data, and price both options for exactly that. It takes two minutes and it beats any generic recommendation, including this one. Our note on total versus daily data plans walks through the arithmetic if you want the longer version.

Two things distort the comparison if you skip that step. First, validity windows: a bucket that expires after seven days is not comparable to one that lasts thirty, even at the same price, and the shorter window is usually the cheaper headline. Second, top-ups: a plan you have to extend twice mid-trip costs more than its sticker price and more of your attention, which on a holiday has its own value.

If you want to see how a specific destination prices up before deciding, our Japan eSIM page lists live plans and durations for one of the most commonly compared markets, and the same page shape exists for every country we cover.

Prices, plans and review scores in this article were checked on 4 September 2026 and are not monitored continuously. Check both providers’ own sites before buying, and see our editorial standards for how we research and correct this kind of comparison.