Truly unlimited — your data never stops
Deciding between Yesim and Holafly? 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: add days to the same eSIM; 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.
Holafly: Top-ups are no longer offered; a longer trip needs a new eSIM.
The same three lengths in all 136 destinations.
Yesim: No unlimited plan for exactly 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.
Holafly: Case by case after activation, and only if reported during the trip.
Unused days refunded within 30 days of purchase.
Yesim: Data or services used are not refunded.
Holafly: Activated eSIMs are handled case by case.
From each brand’s own website, help pages and terms, checked 3 October 2026.
| Feature | SimbaSIM | Yesim | Holafly |
|---|---|---|---|
| Every plan is unlimited data | Yes | NoAlso sells fixed-data packs you have to size. | Yes |
| 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. | NoTop-ups are no longer offered; a longer trip needs a new eSIM. |
| Exact 3, 7 and 14-day plans | Yes | NoNo unlimited plan for exactly 14 days in Europe. | Yes |
| Refund if it never connects, even after installing | Yes | NoInstalling the eSIM counts as activation and ends refund eligibility. | PartlyCase by case after activation, and only if reported during the trip. |
| Unused days refunded | Yes | NoData or services used are not refunded. | NoActivated eSIMs are handled case by case. |
| 24/7 chat without their app | Yes | Yes | Yes |
| Boxes ticked | 8 of 8 | 3 of 8 | 5 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 want unlimited data at one simple price and can buy the exact number of days up front.
Full refund within 6 months if the eSIM was never activated. After activation, case by case; connection problems must be reported before or during the trip, and a $3.50 fee can apply.
Holafly is ahead of Yesim on every plan is unlimited data; and exact 3, 7 and 14-day plans. Yesim suits travellers whose trip is an odd number of days and who want to pay for exactly that. Holafly suits travellers who want unlimited data at one simple price and can buy the exact number of days up front. 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. Holafly 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. Holafly: Full refund within 6 months if the eSIM was never activated. After activation, case by case; connection problems must be reported before or during the trip, and a $3.50 fee can apply. 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 Holafly does: add days to the same eSIM; 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 Holafly are trademarks of their owners. SimbaSIM is not affiliated with or endorsed by either. Details about Yesim and Holafly were taken from their own websites and terms on 3 October 2026 and may since have changed.
