Truly unlimited — your data never stops
Deciding between Yesim and Airalo? Here is how they compare, point by point — and why SimbaSIM is the better pick than either: truly unlimited data that never stops, plus what neither of them gives you: exact 3, 7 and 14-day plans; and refund if it never connects, even after installing.
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Every plan is unlimited data for its whole length, in all 136 destinations. No data packs to size, no top-ups to remember, no overage charges.
A new plan bought with the same email goes onto the eSIM you already have.
Yesim: Available for the US, Thailand, Turkey and Europe; not for Japan plans.
The same three lengths in all 136 destinations.
Yesim: No unlimited plan for exactly 14 days in Europe.
Airalo: No unlimited plan for exactly 14 days in Japan, 14 days in Europe.
Full refund if it will not install or never connects.
Yesim: Installing the eSIM counts as activation and ends refund eligibility.
Airalo: Replacement or refund only for failures caused by Airalo that it cannot fix within 10 days.
Unused days refunded within 30 days of purchase.
Yesim: Data or services used are not refunded.
Airalo: No refund once the eSIM is activated or used.
From each brand’s own website, help pages and terms, checked 3 October 2026.
| Feature | SimbaSIM | Yesim | Airalo |
|---|---|---|---|
| Every plan is unlimited data | Yes | NoAlso sells fixed-data packs you have to size. | NoAlso sells fixed-data packs you have to size. |
| No app or account needed | Yes | Yes | Yes |
| Days start when you land | Yes | Yes | Yes |
| Add days to the same eSIM | Yes | PartlyAvailable for the US, Thailand, Turkey and Europe; not for Japan plans. | Yes |
| Exact 3, 7 and 14-day plans | Yes | NoNo unlimited plan for exactly 14 days in Europe. | NoNo unlimited plan for exactly 14 days in Japan, 14 days in Europe. |
| Refund if it never connects, even after installing | Yes | NoInstalling the eSIM counts as activation and ends refund eligibility. | PartlyReplacement or refund only for failures caused by Airalo that it cannot fix within 10 days. |
| Unused days refunded | Yes | NoData or services used are not refunded. | NoNo refund once the eSIM is activated or used. |
| 24/7 chat without their app | Yes | Yes | Yes |
| Boxes ticked | 8 of 8 | 3 of 8 | 4 of 8 |
Best for travellers whose trip is an odd number of days and who want to pay for exactly that.
Full refund within 30 days only if the plan was never activated — and installing the eSIM counts as activation. Refunds under €10 are paid as Ycoins credit.
Best for travellers who know roughly how much data they need and want the cheapest small pack, from the biggest catalogue.
14 days to withdraw, ending once the eSIM is activated. Replacement or refund if an activated eSIM fails through Airalo’s error and cannot be fixed within 10 days; refunds may be paid as Airmoney credit.
Airalo is ahead of Yesim on add days to the same eSIM. Yesim suits travellers whose trip is an odd number of days and who want to pay for exactly that. Airalo suits travellers who know roughly how much data they need and want the cheapest small pack, from the biggest catalogue. If you want every box ticked — truly unlimited data, no app, a refund if it never connects — SimbaSIM is the better pick than either.
Yesim can be used without its app. Airalo can be used without its app. SimbaSIM needs no app and no account: you buy on the website and your eSIM is delivered by email in 1 minute.
Yesim: Full refund within 30 days only if the plan was never activated — and installing the eSIM counts as activation. Refunds under €10 are paid as Ycoins credit. Airalo: 14 days to withdraw, ending once the eSIM is activated. Replacement or refund if an activated eSIM fails through Airalo’s error and cannot be fixed within 10 days; refunds may be paid as Airmoney credit. SimbaSIM refunds in full if the eSIM will not install or never connects — even after you have installed it — and refunds unused days within 30 days of purchase.
SimbaSIM. Every plan is truly unlimited data, and it gives you what neither Yesim nor Airalo does: every plan is unlimited data; exact 3, 7 and 14-day plans; refund if it never connects, even after installing; and unused days refunded. Plans start at $12.90 for 3 days in 136 destinations.
Yesim and Airalo are trademarks of their owners. SimbaSIM is not affiliated with or endorsed by either. Details about Yesim and Airalo were taken from their own websites and terms on 3 October 2026 and may since have changed.
