Updated September 30, 2026 · TariffCue Editorial Team
co:sim vs Roamable
Where co:sim and Roamable differ
| Compare |  co:sim | Roamable ReviewVisitVisit |
|---|---|---|
| Seller type | Mvno | Reseller |
| Host network | local carrier networks | Multiple local networks per country via upstream provider eSIMAccess |
| Price from | $0.99 | €4.95 |
| 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) | Europe(30+ areas) 1GB 7Days: 5.95 EUR, 1 GB, 7-day validity, no contract |
| Roaming countries | 200 to 240 | from 150 |
| Unlimited plan price | $13.99 | Not confirmed |
Same on both: 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 8.6.
- Support channels: only co:sim offers Chat, Phone.
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.
Roamable
Roamable is a prepaid reseller selling eSIM data for travellers who want coverage in from 150 countries destinations without a contract. It suits people who buy data before a trip rather than anyone settling in a single market, and it scores 8.6 overall on the site.
Score breakdown
| Area | co:sim | Roamable |
|---|---|---|
| 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. | 8.4Entry price is €4.95, above the €2.51 median, and the site ranks it 12 of 15 on price from. |
| Offer | 9.2HigherWide reach with everyday extras: 200 to 240 countries covered, eSIM delivery, hotspot sharing and sim only plans, all prepaid. | 8.9Billing is prepaid with eSIM, hotspot sharing and no contract, so the offer is simple to start and to stop. |
Where each is licensed and available
| Country | co:sim | Roamable |
|---|---|---|
| Headquarters | United States | Not confirmed |
How they place
| Ranking | co:sim | Roamable |
|---|---|---|
| Phone plans with eSIM | 12 of 389 | 2 of 389 |
What we checked
co:sim
- cosim.io: 14 facts, checked September 30, 2026
Roamable
- roamable.co: 12 facts, checked September 30, 2026
Every fact side by side
| Fact | co:sim | Roamable |
|---|---|---|
| Billing | Prepaid | Prepaid |
| Legal entity | Comsand Inc. | Roamable Networks Inc. |
| Headquarters | United States | Not confirmed |
| Support channels | Email, Chat, Phone, Help centreCovers more | Email, Help centre |
Where each stands against the rest
| Fact | co:sim | Roamable | Median |
|---|---|---|---|
| Unlimited plan price | $13.99lowest quarter | Not confirmed | $25 |
| Roaming countries | 200 to 240highest quarter | from 150above the median | 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.
Roamable
Pros
- Coverage reaches from 150 countries destinations on a single eSIM, and hotspot sharing is included.
- Billing is prepaid, and the listed Europe package runs with no contract, so there is nothing to serve out.
- Plans are sim only and eSIM only, so activation happens on the handset and no physical card is involved.
Cons
- Support runs on email and help centre, so help arrives by email or through the help centre rather than in a live chat.
- Entry price of €4.95 sits above the sim-only-deals median of €2.51, and the site places it 12 of 15 on price from.
- KnowRoaming lists an entry price of $1.75, below Roamable's €4.95.
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.
Roamable
Who it suits
- Travellers crossing several countries on a single eSIM profile, rather than buyers who want a single local network: co:sim runs as an MVNO and ESIMZON names its partner networks directly.
- People who buy roaming before they buy a phone plan, and who are content with email and help centre as the help route.
- Short breaks where a single gigabyte of data and a short validity window are enough, since the listed Europe package runs on no contract.
Who should look elsewhere
- Anyone chasing the lowest entry price, because KnowRoaming lists $1.75 against Roamable's €4.95.
- People who need a specific named network at home or abroad: ESIMZON lists partner carriers including AT&T, Orange, Rogers, TIM, T-Mobile and Verizon, where Roamable works through an upstream partner.
- Buyers who want a network's own service: co:sim is an MVNO, while Roamable is a reseller whose help runs on email and help centre.
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
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.
Roamable
What does a Roamable plan cost at the start?+
Roamable's entry pricing starts at €4.95, and the site places that figure 12 of 15 brands on price from. The listed Europe package works out to a single gigabyte of data with a short validity window, sold without a contract. So the cost weighed at entry is a small one-off top-up rather than a monthly commitment.
Is there a contract or a renewal term?+
Billing is prepaid, and the listed Europe package is sold with no contract, so there is no minimum term to serve out. Renewal pricing, which decides so many mobile bills, plays no part here: you buy a fixed data allowance with a validity window, and when it runs down you buy a fresh package rather than committing to another term.