Poprad-Tatry Airport
Reviews guide · Updated 4 October 2026

Yesim review: eSIM and virtual number for Slovakia trips

Quick answerYesimTravellers who also want a number
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Type
eSIM and virtual numbers
Founded
2019
HQ
Baar, Switzerland
Refund window
30 days if unused

Yesim is worth a look for a Slovakia trip if you want an eSIM and the option of a virtual phone number in one app. It sells prepaid eSIM data plans, virtual numbers and a VPN, according to public sources. Taply has not used the service; this review is based on Yesim's own pages and public reviews.

Below: what Yesim is, how setup works, refund terms as stated, common feedback, and when to pick another option.

Top picks at a glance

1
YesimReviewed here
Check prices
2
AiraloWidest choice
View
3
SailySimple app
View
4
DrimsimPay as you go
View
5
Local prepaid SIM (Orange, Telekom, O2, 4ka)Best for long stays

Key takeaways

  • Yesim is run from Switzerland and was founded in 2019, per Wikipedia.
  • It sells data plans plus virtual numbers and a VPN.
  • Refunds are described for unused plans within 30 days.
  • Small refunds may come back as in-app credit, so read the terms.

Yesim and alternatives for a Slovakia trip, ranked

  1. Our top pick
    1

    Yesim

    Reviewed here

    Best for: Travellers who also want a number

    Yesim offers country and regional eSIM plans in its app, plus virtual phone numbers. Coverage for Slovakia depends on the plan, so check it before buying. Plans, prices and data allowances change often, so check the live offer before buying.

    • Virtual number option
    • Country and regional plans
    • One app for several services
    • More features to learn
    • App credit (Ycoins) is not refundable
    Get a Yesim eSIM
  2. 2

    Airalo

    Widest choice

    Best for: Flexible data plans

    Airalo is a large eSIM marketplace with country, regional and global plans.

    • Large choice
    • Top-ups
    • Mostly data-only
    Get an Airalo eSIM
  3. 3

    Saily

    Simple app

    Best for: Short trips

    Saily is the eSIM service launched by Nord Security, with a streamlined app.

    • Simple app
    • Fewer plan types
    Get a Saily eSIM
  4. 4

    Drimsim

    Pay as you go

    Best for: Light data use

    Drimsim is a prepaid pay-as-you-go SIM and eSIM charged per megabyte.

    • Balance does not expire, per its site
    • Per-MB charges can add up
    Get a Drimsim SIM
  5. 5

    Local prepaid SIM (Orange, Telekom, O2, 4ka)

    Best for long stays

    Best for: Long stays

    Slovak operators sell prepaid SIM cards in shops. For stays of several weeks, a local SIM can give a local number and good value. Check the shop for current prices and ID requirements.

    • Local number
    • Good value for long stays
    • Need to find a shop
    • Slower than installing before arrival

What Yesim is

Yesim is operated by Genesis Group AG in Baar, Switzerland, and was founded in 2019 by Dmitri Verbovski and Max Pankratov, according to Wikipedia. It aggregates access to many carriers and roaming brokers and delivers eSIM profiles through iOS and Android apps. For Slovakia, the plan page tells you the partner network.

See eSIM for Slovakia for general guidance on coverage and setup.

How buying and setup work

  1. Check that your phone supports eSIM and is carrier-unlocked.
  2. Choose a Slovakia or Europe plan and pay.
  3. Install the eSIM on Wi-Fi before you travel, using the app or QR code.
  4. On arrival, turn on the eSIM line and allow data roaming for it.

Yesim also sells virtual numbers that can receive calls and texts in selected countries. Check the number's country, price and renewal terms before you buy, since they are separate from the data plan.

Pricing and refunds

Yesim sells data bundles with a validity period and top-ups. Prices vary by country and plan, so compare the current offer. On refunds, its terms describe a request window of 30 days for unused, unactivated plans and top-ups. Used data cannot be refunded, Ycoins (its in-app credit) are non-refundable except for app malfunctions, and approved refunds of 10 euros or less are issued as Ycoins, according to third-party summaries of Yesim's policy. Confirm the current wording on Yesim's site before buying.

What users commonly say

At the time of writing, public reviews tend to mention the app's number feature and broad country list as positives. Common complaints on review sites cover plans that are pricier than competitors in some countries and variable speeds. Check the current Trustpilot page for a fresh view.

Who Yesim suits for Slovakia

Yesim fits travellers who want data plus a virtual number, for example to receive verification codes from a home number. For simple data, Airalo or Saily may be easier to compare. For longer stays, a Slovak prepaid SIM is often cheaper per gigabyte. See best eSIM for Europe for a wider comparison.

Slovakia pages where Yesim appears

Yesim is included in eSIM Slovakia, eSIM for US travelers in Slovakia and best eSIM for Europe.

Frequently asked questions

Where is Yesim based?

Public sources list Baar, Switzerland, with the service operated by Genesis Group AG.

Does Yesim work in Slovakia?

Yesim sells regional and country plans. Check that Slovakia is covered in the plan you pick.

Can I get a refund from Yesim?

Yesim describes refunds for unused plans within 30 days. Used data and in-app credit are generally not refundable.

Does Yesim offer a phone number?

Yesim sells virtual numbers alongside data plans. Check availability and terms in the app.

Is Yesim better than Airalo?

It depends on whether you need a number. For data only, compare live prices on both.

Photo: Poprad-Tatry Airport · 94andrej94 · CC BY-SA 3.0

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