Airalo eSIM review: cheap fixed data, if you read the package details

What it is

Airalo is an eSIM store. You buy a data package in its app or on its website, install it on your phone, and the phone joins a partner network when you reach your destination. Your usual SIM can stay switched on for calls and texts. The company is AirGSM Pte Ltd of Singapore. It said in June 2026 that it had passed 30 million customers, and it sells local, regional and global packages for more than 200 destinations.

Most packages are data-only. You pick a fixed allowance or an unlimited package, valid for a set number of days. A few add a phone number with minutes and texts: some US local plans do, and so do the Discover+ global eSIMs.

Pricing

These were the prices on 12 October 2026, in US dollars:

• Japan, on SoftBank: 3 GB for 7 days $8.00, 10 GB for 7 days $17.00, unlimited for 7 days $26.50, unlimited for 30 days $69.00.
• Thailand, on True: 10 GB for 7 days $10.00, 50 GB for 30 days $27.50, unlimited for 7 days $21.00, unlimited for 30 days $49.00.
• USA, on T-Mobile: 5 GB for 7 days $12.50, unlimited for 7 days $25.00, and 10 GB with 100 minutes and 100 texts for 30 days $30.00.
• Europe, a regional eSIM for 41 countries: 10 GB for 30 days $31.00, 20 GB for 30 days $48.00, unlimited for 30 days $71.00.

The smallest package in Japan, Thailand and the USA is 1 GB for 3 days at $4.00, and Europe starts at $5.00. Fixed allowances are where Airalo is cheap. In Thailand a week of unlimited data costs more than twice the 10 GB package.

What it covers

Each package page has a "Package details" panel. For the package we opened in each of the four destinations, it said you have 365 days from purchase to start using the eSIM. The validity period begins when the eSIM first connects to a network inside its coverage area, not when you install it. So you can install at home on Wi-Fi and let the clock start when you land.

Data covers the whole period rather than each day. A 10 GB, 7-day package is 10 GB in total, and you can burn through it on day one. Top-ups are sold once the eSIM is installed, and renewals can rebuy the package automatically when 10% of your data is left. You can't stretch the validity of a package you already hold.

The Japan package includes Okinawa and Hokkaido. Thailand's lists Phuket, Koh Samui, Krabi and Phi Phi. The US package covers Hawaii and Puerto Rico, with limited availability in Alaska.

Hotspot use is allowed "as long as it is supported by your device and the network". On unlimited packages the fair use policy goes further and promises no limit on tethering or on how many devices you connect.

The fine print

"Unlimited" means 3 GB a day at full speed. Past that, Airalo slows you to 1 Mbps until the allowance resets, 24 hours after the time you activated. At that speed maps and messaging still work, video calls drop in quality and streaming slows. The policy bans reselling and server or machine-to-machine use, and Airalo can end a package without a refund if it decides you broke those rules.

Refunds depend on why you want one. Through the app's refund button, a "Wrong purchase" or "Plans changed" refund comes back only as Airmoney, Airalo's store credit. "Installation issues" and "eSIM not working" can go back to your card instead, typically within 7 to 10 business days and longer with some banks. Expired or used-up eSIMs aren't eligible. The terms also give consumers a 14-day right to withdraw, which ends the moment the eSIM activates. For a fault, ask within 30 days. If Airalo can't restore the service within 10 days, you choose a replacement or a refund of the unused part.

An eSIM you haven't installed can be passed on. Send someone the QR code, and it works on any compatible phone as long as nobody has installed it.

Your phone must support eSIM and be network-unlocked. Airalo can't install on a carrier-locked device, and a carrier may block eSIM on a recently unlocked phone for a while. Several packages route traffic through another country, so your IP address can appear to be outside your destination, and apps that check location by IP may place you in the wrong country. The US package uses a US address.

Data-only also means no local number. WhatsApp, Signal and Telegram calls run over data. Keep your home SIM switched on if your bank sends one-time codes by text, and check what your carrier charges for roaming.

Who it suits

Airalo suits short and mid-length trips where you know roughly what you use: a week in Japan on 10 GB, or a fortnight crossing Europe on 20 GB. The regional eSIMs cover multi-country routes, and because your home SIM stays on, bank codes still reach your usual number.

It is weaker for heavy users on long stays in cheap mobile markets. True and AIS both sell Thai tourist SIMs at 499 baht for 8 days of unlimited data, about $15 at the 12 October mid-market rate, with a Thai number and calls. Their 30-day version is 1,199 baht, about $36, against Airalo's $49 for 30 unlimited days.

Alternatives

Holafly sells unlimited-only trip eSIMs. On 12 October a week cost $27.50 in Japan, Thailand, the USA and Europe. Thirty days cost $73.90, or $76.50 for Europe. Hotspot sharing is capped at 1 GB a day. For long stays it also sells monthly plans from $49.90 for 25 GB.

Mobile operators' own travel offers often cost less. In Europe, Orange Travel's eSIM sold 20 GB with unlimited calls and texts for 14 days at $29.99, while Airalo's nearest Europe package, 20 GB for 15 days, was $47.00. The Thai tourist SIMs above are cheaper again, though they are registered to your passport under the regulator's rules. Your home carrier is the expensive fallback. AT&T's International Day Pass costs $12 a day on land, capped at 10 daily charges per line each bill.

How we rated it

We scored five criteria from Airalo's package pages, fair use policy, help centre and terms, plus rival providers' prices on the same day, and averaged them. We did not install or test an Airalo eSIM.

Flexibility scores 4.5 for the year-long activation window. Value, coverage and clarity get 4 each, and refunds and support get 3.5.