Yesim review
Updated September 28, 2026 · NomadCue Editorial Team · Facts checked September 26, 2026
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Our verdict
Yesim is an eSIM marketplace for travellers who want daily unlimited passes alongside a per GB global balance. Coverage of 170 countries, hotspot sharing and a Pay & Fly rate of €0.92 per GB suit short trips that cross several regions.
Key facts
- Best for
- Short trips that mix a few unlimited days with a global pay as you go balance.
- Price from
- €0.92↗
- Countries covered
- 170↗
- Unlimited data
- Yes↗
- Hotspot sharing
- Yes↗
- Reference plan prices
- US from €1.50 / day; UK from €1.90 / day; Europe (Germany, France, Spain) from €1.90 / day; Japan from €1.83 / day; Thailand from €1.40 / day; Turkey from €1.90 / day; Mexico from €2.63 / day; global Pay & Fly from €0.92 / GB↗
- 5G
- Yes↗
- Fair use policy
- A plan day is 24 hours of unlimited internet from the moment of connection; the next day is deducted only when you reconnect after the previous 24 hours expire. Pay & Fly is charged per MB used and the balance never expires.↗
- Networks
- T-Mobile, Vodafone, AT&T, Orange, Verizon, Telefonica, Airtel, Tele2, O2↗
- Top-ups
- Yes↗
- Seller type
- Marketplace↗
- Legal entity
- Genesis Group AG↗
- Headquarters
- Switzerland↗
- Founded
- 2019↗
- Support channels
- Email, Help-centre, Community↗
- Region
- Regional, Global
- Features
- Unlimited data, 5G, Hotspot, Instant activation
- Pricing model
- Marketplace
- Audience
- Short trips, Long trips
- Official website
- yesim.app
Facts checked September 26, 2026, 5 sources
Apps and profiles
- Get the app
- App StoreGoogle Play
- Elsewhere
- WikidataLinkedInXreddit.com
Pros and cons
Pros
- A global balance from €0.92 per GB next to unlimited day passes, so you can pay for a week of data or a single heavy day.
- Coverage of 170 countries with hotspot sharing and instant activation on major host networks.
- Top-ups are available and the per GB balance never expires, which suits longer routes (short trip and long trip).
Cons
- The unlimited plan is metered in plan days: the next day is deducted only when you reconnect, so a long streaming session spends a day quickly.
- Support runs on email, help centre and community only, with no phone line listed.
- Coverage of 170 countries sits below Zwitchy's 200, which matters on trips that cross several regions at once.
Who it suits
- Travellers on short trips who want unlimited data for a set day instead of counting gigabytes.
- Longer routes where a toppable balance that never expires beats buying a fresh plan at each border.
- People who need hotspot sharing for a laptop or tablet while moving between countries.
Who should look elsewhere
- Anyone whose route needs the longest country list: Zwitchy covers 200.
- Travellers who only need a single destination: SimToIsrael lists prices from $25.
- Anyone who wants live phone support, since support runs on email, help centre and community.
What data costs
Global Pay & Fly is sold by the gigabyte and starts at €0.92. Unlimited day passes are listed per destination, with the US, UK, Germany, France, Spain, Japan, Thailand, Turkey and Mexico each carrying its own rate, so a short break in a single country can run on unlimited days while a multi-country route leans on the global balance.
Who runs it
Yesim is run by Genesis Group AG, registered in Switzerland and founded in 2019. Support comes through email, help centre and community, so a question about a plan, a top-up or a connection in a given country is handled by email or answered in the help centre, with community threads for advice from other travellers.
How Yesim compares
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Yesim vs Holafly9.3 vs 8.6
Frequently asked questions
How much does Yesim cost?+
Global Pay & Fly starts at €0.92 per GB, charged by the megabyte. Unlimited day passes are listed per destination, with the US, UK, Germany, France, Spain, Japan, Thailand, Turkey and Mexico each at its own rate, so you can mix a fixed run of unlimited days with pay as you go data.
Is the data really unlimited?+
Unlimited data is available on the day pass plans, and the fair use policy sets the limit. A plan day runs from the moment you connect, and the next day is deducted only when you reconnect after the previous one has expired, so a heavy streaming session uses up a full day quickly.
How many countries does Yesim cover?+
Coverage runs to 170 countries, with both regional and global options (regional and global). A regional pass concentrates on a single market, while the global Pay & Fly balance covers the wider list and is charged only for the data you use.
Which networks will my phone use?+
Yesim lists host networks including T Mobile, Vodafone and AT&T, so the network you land on depends on the country and the plan you pick rather than a single Yesim network. That is worth checking if your phone or a work device is restricted to certain carriers.
Can I share the connection and get set up fast?+
Hotspot sharing is supported, so a laptop or tablet can ride on the same connection, and activation is instant once the eSIM is installed. Those features sit alongside unlimited data in the feature list (unlimited data, 5g and hotspot), the usual pairing for travellers working or streaming away from wifi.
Can I top up, and does unused data expire?+
Top-ups are available, so the global balance can be added to mid-trip instead of being replaced. Pay & Fly is charged per MB used, the balance never expires, and data starts at €0.92 per GB, which makes it forgiving on a route you are still planning.
Who runs Yesim?+
Yesim is a marketplace run by Genesis Group AG, registered in Switzerland and founded in 2019. Plans are listed from the host networks rather than sold by a single carrier, so it is worth checking which network backs a given country before you pay for a pass.
How do I get help while I am travelling?+
Support runs through email, help centre and community, so you can email the team, search the help centre or read advice from other travellers in the community. No phone line is listed, so for anything urgent while you are abroad, email is the direct route.
Sources
- yesim.app checked September 26, 2026
Backs: Reference plan prices, Region
“United States from €1.50 / day”
- yesim.app/about-us checked September 26, 2026
Backs: Founded, Support channels
“Making history since 2019 - 2019 Global Launch”
- yesim.app/pay-and-fly-esim checked September 26, 2026
Backs: Countries covered, 5G, Hotspot sharing, Networks, Price from, Top-ups
“Works in over 170 countries”
- yesim.app/terms-of-service checked September 26, 2026
Backs: Headquarters, Legal entity, Pricing model, Seller type
“legal address: Bahnhofstrasse 4, 6340 Baar, Switzerland”
- yesim.app/unlim-day-pass checked September 26, 2026
Backs: Audience, Fair use policy, Features, Unlimited data
“Unlimited data in 146 countries. Buy a plan-day pack and use days one by one. Valid for 365 days from purchase”
Compiled from 5 source pages, checked September 26, 2026. We did not open an account.
Not confirmed yet: Price per GB from.