AeroSims review

Updated September 28, 2026 · NomadCue Editorial Team · Facts checked September 26, 2026

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Our verdict

AeroSims is a small Swiss marketplace selling pay-as-you-go and unlimited travel eSIMs, built for travellers who want broad country choice and quick activation. Plans start at $3.90 and the entry unlimited plan adds up. It suits short trips with a light data habit.

Key facts

Best for
Broad country choice at a low entry price with instant activation
Price from
$3.90↗
Price per GB from
$0.89↗
Countries covered
175 to 195↗
Unlimited data
Yes↗
Hotspot sharing
Yes↗
Reference plan prices
Germany 10 GB/30 days $8.90; Japan 10 GB/30 days $9.90; United States 10 GB/30 days $12.90; Turkey unlimited from $3.24/day ($77.15/30 days); Greece unlimited from $2.92/day; Thailand unlimited from $3.42/day↗
5G
Yes↗
Fair use policy
5 GB per day at full speed, then reduced speed (512 kbps) for the rest of that day, full speed returns the next day; hotspot traffic counts toward the same allowance↗
Networks
AT&T, NTT Docomo, SoftBank, Au by KDDI, Vodafone, O2, Vodafone Türkiye↗
Top-ups
Yes↗
Seller type
Marketplace↗
10 GB in Europe
$8.90↗
10 GB in the US
$12.90↗
10 GB in Japan
$9.90↗
Legal entity
AeroSims, sole proprietorship (Einzelunternehmen), owner Muhamed Minic↗
Headquarters
Switzerland↗
Support channels
Email, Chat, Help-centre↗
Region
Regional, Global
Features
Unlimited data, 5G, Hotspot, Instant activation
Pricing model
Marketplace
Audience
Short trips, Long trips
Official website
aerosims.com

Facts checked September 26, 2026, 6 sources

Apps and profiles

Elsewhere
instagram.com

Pros and cons

Pros

  • Plans start at $3.90, well under the site median of €5
  • Unlimited data plans, subject to a fair use policy of a daily full speed allowance before reduced speed
  • Coverage of 175 to 195 countries across regional and global plans
  • Hotspot sharing and 5G, with instant activation on unlimited data, 5g and hotspot

Cons

  • Unlimited plans come with a fair use policy: a daily full speed allowance, then reduced speed for the rest of that day, with hotspot traffic counting toward the same allowance
  • Support runs on email, chat and help centre only, with no phone line
  • AeroSims is a marketplace run as a sole proprietorship, so a single seller carries the whole catalogue

Ready to try AeroSims?

Scored 9.4 / 10 by NomadCue.

Who it suits

  • Travellers on short trips buying a country or regional eSIM before departure
  • People who want unlimited data for browsing and maps without tracking each gigabyte
  • Shoppers who prioritise entry price over the size of the operator behind the plan

Who should look elsewhere

  • Heavy data users who stream or tether at full speed all day and need the fair use cap lifted
  • Anyone who wants phone support, since help runs on email, chat and help centre
  • Long stay travellers who prefer a carrier run network with local customer service

How it compares on our data

AeroSims sits near the top of the field on price per GB: it ranks at 26 of 115 brands on that measure, while its lowest price ranks at 95 of 313 on starting price. The gap between those two positions is the trade-off to weigh. Cheap entry prices are common across the eSIM category. Low price per GB across a wide catalogue is not.

Where it works

Coverage spans 175 to 195 countries on a mix of regional and global plans. Listed networks include AT&T, NTT Docomo and SoftBank. 5G is available, which matters for travellers who need speed for maps and video on arrival. The catalogue leans on marketplace supply, so the host network can differ between country plans.

How AeroSims compares

Frequently asked questions

How much does an AeroSims eSIM cost?+

Plans start at $3.90, against a site median starting price of €5. Reference plans include $8.90 for a Germany allowance, $9.90 for Japan and $12.90 for the United States. The lowest price per GB is $0.89.

Does AeroSims sell unlimited data plans?+

Yes, unlimited data is offered, and the cheapest per GB sits at $0.89. Unlimited plans are sold by the day, with a fair use policy that allows a set amount at full speed each day, then reduced speed until the next day. Hotspot traffic draws from the same allowance.

Which countries can I use an AeroSims eSIM in?+

Coverage runs to 175 to 195 countries across regional and global plans. Reference products exist for Germany, Japan, the United States, Turkey, Greece and Thailand. Buying is done per country or per region before travel, and regional and global plans sit alongside them.

Which networks do AeroSims eSIMs run on?+

Listed partners include AT&T, NTT Docomo and SoftBank. Because AeroSims sells as a marketplace rather than through a single host network, the underlying partner can vary by destination. That is worth checking against your own operator for a specific country before you buy.

Can I use my AeroSims eSIM for hotspot sharing?+

Hotspot sharing is supported, and the same applies to the unlimited plans. On an unlimited plan, tethering draws from the same daily fair use allowance as normal browsing, so speeds can be reduced for the rest of that day once the allowance is used.

How long is an AeroSims eSIM valid?+

Validity is set by the plan you buy. Reference data plans such as $8.90 come as an allowance over a fixed period, while unlimited plans are sold by the day, so you can size a plan to the trip. The catalogue covers both short trips and longer stays.

Can I top up an AeroSims eSIM while travelling?+

Top-ups are available, so a plan can be extended when usage runs ahead of the allowance. 5G is listed too, which helps on newer handsets where the host network supports it. On unlimited plans the fair use policy still applies, with a daily allowance at full speed before reduced speed.

How do I get help from AeroSims?+

Support runs on email, chat and help centre, so you get a help centre plus email and chat. A phone line is not among those channels, which matters most if you need help while already abroad. Setting the plan up before departure keeps activation questions out of the trip.

Sources

  • aerosims.com/pages/esim-faq checked September 26, 2026

    Backs: Audience, Countries covered, Hotspot sharing, Region, Top-ups

    “Packages are usually the cheaper option for short trips.”

  • aerosims.com/policies/legal-notice checked September 26, 2026

    Backs: Headquarters, Legal entity, Pricing model, Seller type

    “Registered address: Industriestrasse 51, 8304 Wallisellen, Switzerland”

  • aerosims.com/products/germany-data-esim checked September 26, 2026

    Backs: Networks, 10 GB in Europe, Price from

    “Your eSIM connects to Vodafone and O2 for fast 4G/5G across Berlin, Munich, Frankfurt and the Autobahn network.”

  • aerosims.com/products/japan-data-esim checked September 26, 2026

    Backs: 5G, 10 GB in Japan, Price per GB from, Reference plan prices

    “Your eSIM connects to NTT Docomo, SoftBank and au for fast 4G/5G across Tokyo, Osaka, Kyoto”

  • aerosims.com/products/turkey-esim-unlimited checked September 26, 2026

    Backs: Fair use policy, Features, Support channels, Unlimited data

    “in Türkiye that is 5 GB per day. Beyond it you stay online at a reduced speed (512 kbps) for the rest of that day, and full speed returns automatically the next day. Hotspot traffic counts towards...”

  • aerosims.com/products/united-states-data-esim checked September 26, 2026

    Backs: 10 GB in the US

    “10 GB 30 $12.90”

Compiled from 6 source pages, checked September 26, 2026. We did not open an account.

AeroSims

Broad country choice at a low entry price with instant activation

9.4/10See alternatives