Updated September 30, 2026 · TariffCue Editorial Team
co:sim vs eSIMony
What sets them apart
| Compare |  co:sim |  eSIMony |
|---|---|---|
| Host network | local carrier networks | local host networks incl. AT&T, T-Mobile, Verizon, Vodafone, Orange, Telefonica, Digicel |
| Price from | $0.99 | €3.90 |
| Reference plan prices | Global (117 areas) unlimited daily data: $13.99, unlimited daily data, no contract, 1-365 days; Global (117 areas) 20GB 30 days: $135.99, 20GB total data, no contract; cheapest plan overall: single-destination Data Only eSIM from $0.99, data varies, no contract (no 12-month or 30GB+ plans listed) | eSIM Europe 2 GB / 15 days: EUR 6.90, 2 GB, prepaid one-time no contract | eSIM Europe 10 GB / 30 days: EUR 16.90, 10 GB, prepaid one-time no contract | eSIM Europe 50 GB / 30 days: EUR 52.90, 50 GB, prepaid one-time no contract (largest data; no 12-month or unlimited price published) |
| Roaming countries | 200 to 240 | 300Higher |
| Unlimited plan price | $13.99 | Not confirmed |
| EU roaming | Not confirmed | Included |
| Markets | Not confirmed | AE, AT, AU, BE, BG, CA, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HK, HU, IE, IL, IT, JP, LT, LU, LV, MT, MY, NL, NO, NZ, PL, PT, RO, SE, SG, SI, SK, US |
Same on both: Seller type (Mvno), SIM-only (Yes), 5G (Yes), eSIM (Yes), Hotspot sharing (Yes).
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.
Key differences
- co:sim scores higher overall: 9.4 vs 9.0.
- Roaming countries is higher at eSIMony: 300 vs 200 to 240.
- Support channels: only co:sim offers Chat.
Our verdict on each
co:sim
co:sim suits travellers who want a prepaid eSIM with wide reach and a low starting price, and plans open at $0.99. It is a data-only setup, so the eSIM, hotspot sharing and sim only options suit people who manage their own data rather than expect a handset with the plan.
eSIMony
eSIMony suits travellers and short-term data buyers who prefer a single prepaid eSIM to a monthly contract, with eSIM Europe entry at €3.90 against a listing median of €3.07. It scores 9 overall, and EU roaming across the eSIM Europe plans is included.
Score breakdown
| Area | co:sim | eSIMony |
|---|---|---|
| Cost | 9.5HigherEntry pricing leads the set: $0.99 to open a plan and $13.99 for unlimited daily data, with no contract on either. | 8.7Entry sits at €3.90 against the listing median of €3.07, and prepaid billing makes the paid figure the whole cost. |
| Offer | 9.2Wide reach with everyday extras: 200 to 240 countries covered, eSIM delivery, hotspot sharing and sim only plans, all prepaid. | 9.2Every eSIM Europe bundle pairs data with hotspot sharing, eSIM delivery and 5G, plus roaming across 300 countries. |
What we checked
co:sim
- cosim.io: 14 facts, checked September 30, 2026
eSIMony
- esimony.com: 15 facts, checked September 30, 2026
How they place
| Ranking | co:sim | eSIMony |
|---|---|---|
| Phone plans with eSIM | 12 of 389 | 7 of 389 |
Every fact side by side
| Fact | co:sim | eSIMony |
|---|---|---|
| Billing | Prepaid | Prepaid |
| Legal entity | Comsand Inc. | HD Solutions GmbH |
| Headquarters | United States | Germany |
| Support channels | Email, Chat, Phone, Help centreCovers more | Email, Phone, Help centre |
Where each stands against the rest
| Fact | co:sim | eSIMony | Median |
|---|---|---|---|
| Unlimited plan price | $13.99lowest quarter | Not confirmed | $25 |
| Roaming countries | 200 to 240highest quarter | 300highest quarter | 100 |
Median across 176 listed providers.
Pros and cons
co:sim
Pros
- Entry at $0.99 puts co:sim at the front of the price ranking: 1 of 15.
- Reach of 200 to 240 countries with hotspot sharing, so one data plan can carry a phone and a laptop across a long route.
- Sim only eSIMs on prepaid billing, so nothing is locked into a contract before the trip: prepaid.
Cons
- Billing is prepaid only, so a long trip has to be bought and paid for up front rather than spread over a contract.
- Unlimited daily data costs $13.99 against an entry price of $0.99, so wide-area cover for a long route sits well above the figure a plan list opens with.
- Of the email, chat and phone on offer, phone is the least common: 18.8% of the listings here include it, against 93.8% for the help centre.
eSIMony
Pros
- The eSIM Europe bundles are prepaid and one-time with no contract, so the paid figure is the whole cost rather than an opening rate that later renews higher.
- Roaming spans 300 countries with EU roaming included, so one purchase can cover a trip crossing several European markets.
- Data allowances come with hotspot sharing, eSIM delivery and 5G, which is more than a bare data-only line and lets a laptop share the same bundle.
Cons
- Billing is prepaid one-time, so the paid figure is the whole cost and there is no rolling monthly price to budget against, while the largest eSIM Europe bundle costs noticeably more than the €3.90 entry point on a data-heavy trip.
- Support runs on email, phone and help centre, with live chat not among the listed channels, so quick questions mid-trip rely on email, the help centre or a phone call.
- As an MVNO on local host networks that include AT&T, T-Mobile, Verizon, Vodafone, Orange, Telefonica and Digicel, the carrying carrier can change between countries on the same trip.
Who each suits
co:sim
Who it suits
- Travellers crossing several countries who want a prepaid eSIM and hotspot sharing.
- People who plan their own data and pay as they go, since billing is prepaid with no contract attached.
- Anyone with an eSIM-ready handset who wants a sim only plan.
Who should look elsewhere
- Travellers after a named local partner in a single country, such as a Japan trip, where BambooSIM runs on Local partner networks, e.g. KDDI (au) and SoftBank in Japan.
- Shoppers who prefer a reseller setup, since ESIMZON is reseller and KnowRoaming is reseller.
- Buyers who want a monthly contract to renew: billing is prepaid, and the listed plans carry no contract.
eSIMony
Who it suits
- Travellers crossing several European markets who want one prepaid eSIM with EU roaming included rather than a purchase per country.
- Readers who prefer an MVNO to a reseller, since reseller and reseller both sit on the pass-through layer eSIMony does not.
- Short stays where a fixed monthly bill makes no sense, given the eSIM Europe bundles are prepaid one-time with no contract.
Who should look elsewhere
- Anyone who wants live chat during a trip, since support runs on email, phone and help centre.
- Readers shopping for a reseller pass-through plan, since reseller and reseller are resellers and eSIMony is an MVNO.
- Travellers who need one named carrier in every country, since eSIMony names several local host network partners and local carrier networks is described in equally open terms.
Current offers
co:sim
Current offer
Bonus
Free 1 GB eSIM for new customers: 1GB free eSIM valid 7 days at $0
New customers only, one per person; applied automatically at checkout, no code; sign-in with email and a valid payment card required for verification, nothing charged; 42 territories (one EU-33 roaming card plus 9 single-destination cards)
Source, checked September 30, 2026
Country by country
| Country | co:sim | eSIMony |
|---|---|---|
| Australia | No | Yes |
| Austria | No | Yes |
| Belgium | No | Yes |
| Bulgaria | No | Yes |
| Canada | No | Yes |
| Cyprus | No | Yes |
| Czechia | No | Yes |
| Denmark | No | Yes |
8 of 39 countries where either is available.
Questions about each
co:sim
How much does a co:sim plan start at?+
The entry price is $0.99, and it belongs to a single-destination data-only eSIM rather than a wide-area plan. That makes it the figure that appears first in a plan list, but it is not the cost of staying online across a whole trip. Budget from the unlimited price for multi-country use.
How much is unlimited data on co:sim?+
Unlimited daily data costs $13.99. That plan covers a wide area list and runs without a contract, and it is the line most readers set against other sellers' unlimited plans. The gap between this figure and the entry price is the trade-off: unlimited removes the need to choose a data amount and moves the budget up.
eSIMony
What does an eSIMony plan cost to start?+
The eSIM Europe range starts at €3.90, a little above the listing median of €3.07 and inside the upper band of the field at €4.65. The bundles are sold as prepaid one-time with no contract, so the checkout figure is the full cost rather than a first-period figure.
Does the price change when I come back for another trip?+
There is no introductory rate here that later renews higher. Each eSIM Europe bundle is a prepaid one-time purchase with no contract, so the same figure applies every time a bundle is bought rather than a cheaper opening period followed by a larger renewal figure. Entry sits at €3.90.