Start with the starting price, then check what it buys
Entry prices across the listings in our comparison span €0 to €43.85 a month, so the gap between the cheapest and the dearest starting offer is wide. That figure only tells you where a provider begins, not what a month at that price actually contains, which is why it should be your opening filter rather than your decision.
Billing style tells you how much freedom you are buying. Lonestar Cell MTN bills on contract and prepaid terms, yesss! offers contract, rolling and prepaid billing, and Astound sells on rolling terms. A rolling or prepaid setup suits anyone who wants to swap or pause without paperwork, while a longer contract can win on price per month.
Plans sold as unlimited sit in their own price group, which runs €1.32 to €100. Not every brand here appears in that group: yesss! lists no unlimited mobile plan, and its largest listed plan is the XL one, while Lonestar Cell MTN lists no unlimited option and no very large annual bundle. If unlimited is your goal, filter these two out early rather than reading every plan.
Confirm the eSIM and the checks that come with it
An eSIM is a deal-breaker for many phones, so settle it before you compare anything else. Astound supports an eSIM, Lonestar Cell MTN offers an eSIM, and yesss! supports an eSIM, so each one clears that test. Lonestar Cell MTN and yesss! also sell sim only, which removes the handset question if the phone you already own has an eSIM.
Watch for extra conditions attached to the sign-up. Astound does require a credit check, so have your details to hand before you order, and expect a short wait if the check needs a manual review.
Coverage evidence matters just as much as the eSIM badge. Astound publishes an address checker so you can test your own street before committing, and it points to the FCC mobile performance labels for its service. Use both, then read the Astound review for the parts a checker cannot tell you. The wider phone plans with eSIM ranking is a good place to see which providers pass the same checks.
Read the data allowance and what happens to leftovers
The European brands here sell data in very different shapes. Lonestar Cell MTN sells it in small blocks: a social bundle whose price varies, a modest bundle valid for a day, and a monthly bundle with a large allowance, with prices as low as $0.20. yesss! uses the opposite approach, pairing a large allowance on its SIMple M yearly plan with a small monthly figure, and it also offers SIMpure, a pay-per-use option with no commitment at prices as low as €0.
Ask what happens to data you do not use. Astound does not roll data over, so an unused allowance expires at the end of the cycle rather than carrying forward, which matters more than it sounds if your usage is seasonal.
Sort by what you need beyond plain data. Astound allows hotspot sharing on its mobile plans, which is useful if your phone doubles as the home connection for a tablet or laptop. One caution on speed figures: the highest download number published for Astound, 5,000, refers to its gigabit fixed-line tiers rather than its mobile service, so do not read it as a mobile speed.
Roaming is what separates these brands
This is the clearest difference between them. yesss! handles roaming in Europe on a fair-use basis, which is the most open of these arrangements and the easiest to explain to someone who travels a few times a year. Astound and Lonestar Cell MTN both treat European roaming as a paid extra, so a trip abroad adds a cost you need to budget for.
Reach is the other side of the roaming question. Lonestar Cell MTN lists 170 countries for roaming, which is the broad figure to lean on if your travel is long haul rather than European. Compare that against where the plan is actually meant to be used: Lonestar Cell MTN is based in LR and lists LR as its market, Astound is based in US and serves US, and yesss! is registered in AT and runs on the A1 network. The Lonestar Cell MTN review and the yesss! review set out the detail on both.
Contract length and the cost of leaving early
Contract length is where a low monthly figure stops being low. yesss! sells on terms of 1 and 12 months, so a plan that looks cheap per month is a much larger sum if you keep it for the full term. Lonestar Cell MTN lists a contract term of 1 months, which keeps the commitment short.
Work out the total across the term, not just the monthly number, and then check what leaving early costs. Astound's exit terms read No cancellation penalty; change or cancel anytime, so there is no financial penalty for walking away, though a fixed-term plan still commits you for its whole period.
If a long commitment does not suit you, weight the rolling and prepaid options more heavily in the rankings. Providers outside Europe show the same trade-off in their own regions, and the reviews for Smart Axiata, cellcard and Bouygues Telecom are worth reading for a different set of contract habits.
Household extras, support and who you are buying from
If more than one line is involved, discounts change the maths. Astound offers a multi-line discount, so adding another line can bring the effective per-line cost below the headline figure, and its rolling billing means you can resize the group without renegotiating a contract.
Then check the support route. yesss! offers support through email, chat and phone, and Lonestar Cell MTN offers email, chat and phone. A brand with live chat as well as phone support will save you time when a plan needs changing mid-month, which is a bigger deal than it sounds with an eSIM-based line.
Finally, note who the seller is. Lonestar Cell MTN and yesss! are both recorded as network sellers, meaning you deal with the network operator rather than a reseller, and the operator behind yesss! is A1 Telekom Austria AG. Reviews such as the Alfa review are useful for the same reason: they show whether support answers from the network or from a call centre.