Siima vs Airalo 2026
Airalo popularized the travel eSIM app. Siima takes a different approach — browser-based checkout, an itemized price instead of a bundled one, and no account required. Here's what actually changes depending on which one you use.
Where the money actually goes
Every eSIM marketplace buys data wholesale from an underlying carrier or aggregator and adds a markup on top — that part is true of Siima as much as anyone. The difference is whether that markup is shown to you or folded silently into a single number. Airalo, like most app-based eSIM sellers, shows one price at checkout. You don't see what portion is the actual data plan versus what the platform kept.
Siima splits it out. A 1 GB, 7-day France plan checks out at $1.55 for the plan itself, a $0.10 service fee, and $0.35 in payment processing — $2.00 total, and you can see all three numbers before you pay. It won't always be the cheaper number on every country and every plan size (wholesale carrier rates move independently of either platform), but you'll know exactly what you're comparing, which is the part a bundled price doesn't give you.
| Checkout line item | Siima | Airalo |
|---|---|---|
| Plan cost | Shown separately | Bundled into total |
| Service / platform fee | Shown separately | Bundled into total |
| Payment processing | Shown separately | Bundled into total |
| Final total | Sum of the above, visible upfront | One number, no breakdown |
App vs no app
Airalo's whole product is the app — you install it, create an account, and manage every eSIM you've ever bought from inside it. That's genuinely convenient if you travel often and already have it on your phone from a previous trip. It's a worse deal the first time: you're standing in an airport with bad Wi-Fi, downloading an app store listing, waiting for it to install, then creating an account, before you've even gotten to picking a plan.
Siima skips that chain entirely. You land on a plan page in a mobile browser, pick a country and a data size, and pay. No app store, no account creation — the QR code and a one-tap install link show up by email inside a minute, and that email is the only record you need to keep. The tradeoff runs the other way too: without an account, there's no single dashboard listing every eSIM you've ever bought — each purchase lives in its own confirmation email.
Buying for someone else, or through an AI assistant
Because Siima doesn't gate checkout behind an account, sending someone an eSIM is just sending them the email — book a plan for a parent or a colleague using their email address at checkout and they get everything they need directly, no shared login. Siima also runs a public MCP server at api.siima.online/mcp, so an AI assistant like Claude or ChatGPT can search plans and generate a checkout link on its own rather than a human clicking through pages first. Airalo doesn't currently expose anything equivalent.
Where Airalo still has the edge
Airalo has been at this longer and it shows in a few places worth being honest about: a bigger library of region-spanning bundles for multi-country trips, a referral credit system for repeat travelers, and an app-based dashboard that's genuinely useful if you buy eSIMs often enough to want one place to manage them all. If you already have the app installed and a stored payment method, re-buying inside it is faster than opening a browser.