Truly unlimited — your data never stops
SimbaSIM vs Yesim
Thinking about Yesim? SimbaSIM gives you truly unlimited data that never stops, plus what Yesim does not: every plan is unlimited data; add days to the same eSIM; and exact 3, 7 and 14-day plans.
4.7564 traveller reviews
Rated excellentby our travellers
- Full refund if it never connects
- eSIM delivered in 1 minute
- 24/7 support by chat
- Secure checkout with card, Apple Pay or Google Pay
Why travellers choose SimbaSIM over Yesim
Truly unlimited — your data never stops
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.
Every plan is unlimited data
No data packs to size or top up.
Yesim: Also sells fixed-data packs you have to size.
Add days to the same eSIM
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.
Exact 3, 7 and 14-day plans
The same three lengths in all 136 destinations.
Yesim: No unlimited plan for exactly 14 days in Europe.
Refund if it never connects, even after installing
Full refund if it will not install or never connects.
Yesim: Installing the eSIM counts as activation and ends refund eligibility.
Unused days refunded
Unused days refunded within 30 days of purchase.
Yesim: Data or services used are not refunded.
Cheaper on 2 of the trips we priced
Japan, 7 days: $26.90 · Turkey, 7 days: $26.90
Yesim: $29.40 · $27.72
Side by side
| Feature | SimbaSIM | Yesim |
|---|---|---|
| Every plan is unlimited data | YesNo data packs to size or top up. | NoAlso sells fixed-data packs you have to size. |
| No app or account needed | YesBought on the website; the QR code arrives by email. No app, no account. | YesQR code in the confirmation email; the app is optional. |
| Days start when you land | YesDays start when you first connect at your destination. | YesValidity begins when the eSIM connects to a network. |
| Add days to the same eSIM | YesA new plan bought with the same email goes onto the eSIM you already have. | PartlyAvailable for the US, Thailand, Turkey and Europe; not for Japan plans. |
| Exact 3, 7 and 14-day plans | YesThe same three lengths in all 136 destinations. | NoNo unlimited plan for exactly 14 days in Europe. |
| Refund if it never connects, even after installing | YesFull refund if it will not install or never connects. | NoInstalling the eSIM counts as activation and ends refund eligibility. |
| Unused days refunded | YesUnused days refunded within 30 days of purchase. | NoData or services used are not refunded. |
| 24/7 chat without their app | Yes24/7 chat on the website, no app or account. | Yes24/7 live chat. |
What to know before you buy Yesim
- Installing the eSIM ends refund eligibility, and small refunds come back as store credit.
- Japan plans cannot be topped up.
- Recent reviewers report weak connections in some countries and slow refunds.
- Refunds: 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.
The best Yesim alternative
SimbaSIM
- Unlimited data on every plan: 3, 7 or 14 days in 136 destinations
- No app, no account — your eSIM is delivered in 1 minute
- Days start when you land, and more days go onto the same eSIM
- Full refund if it never connects; unused days refunded within 30 days
More comparisons
Yesim head-to-heads
Questions about Yesim and SimbaSIM
Is SimbaSIM better than Yesim?
For most travellers, yes. SimbaSIM gives you truly unlimited data that never stops, and beats Yesim on every plan is unlimited data; add days to the same eSIM; exact 3, 7 and 14-day plans; refund if it never connects, even after installing; unused days refunded. It also costs less for Japan, 7 days, Turkey, 7 days.
What is Yesim’s refund policy?
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. 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.
Do I need an app to use Yesim?
Yesim can be used without its app. SimbaSIM goes further: no app and no account at all — you buy on the website and your eSIM is delivered by email in 1 minute.
What is the best alternative to Yesim?
SimbaSIM. Every plan is unlimited data, there is no app or account, your days start when you land, you can add days to the same eSIM, and you get a full refund if it never connects. Plans start at $12.90 for 3 days in 136 destinations.
Yesim is a trademark of its owner. SimbaSIM is not affiliated with or endorsed by Yesim. Details about Yesim were taken from its own website and terms on 3 October 2026 and may since have changed.
