Updated September 30, 2026 · TariffCue Editorial Team
Blau.de vs Youfone
What sets them apart
| Compare |  Blau.de |  Youfone |
|---|---|---|
| Host network | Telefonica (O2 network) | KPN |
| Price from | €6.99 | €1Lower |
| Reference plan prices | Blau Allnet M: 8.99 EUR/month, 40 GB, 24 months Blau Allnet S Flex: 6.99 EUR/month, 15 GB, rolling (1 month notice) No unlimited plan listed; highest listed is Blau Allnet XL Promo: 14.99 EUR/month, 80 GB, 24 months | Magic Deal 40GB: EUR 1 per month, 40GB, 24 months | Magic Deal 30GB: EUR 1 per month, 30GB, 24 months | Magic Deal 10GB: EUR 2 per month, 10GB, 24 months |
| EU roaming | Fair use | Included |
| Wi-Fi calling | Not confirmed | Yes |
| Roaming countries | from 100 | Not confirmed |
| Multi-line discount | Yes | Not confirmed |
| Markets | DE | Not confirmed |
Same on both: Seller type (Mvno), SIM-only (Yes), 5G (Yes), eSIM (Yes), Credit check required (No).
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
- Youfone scores higher overall: 9.2 vs 9.0.
- Price from is lower at Youfone: €1 vs €6.99.
- Founded is lower at Blau.de: 2005 vs 2008.
- Billing: only Blau.de offers Prepaid.
- Contract length: only Youfone offers 12.
Our verdict on each
Blau.de
Blau suits anyone who wants a cheap German mobile line on a handset they already own, with sim only plans starting at €6.99 a month and no credit check. The trade-off is term length: only Blau Allnet S Flex rolls, and no plan in the range is unlimited.
Youfone
Youfone suits Dutch readers who want a cheap sim only line with a large data bundle and no credit check at all. Magic Deal plans start at €1 a month, well under the site wide median of €9.30, and the service runs on KPN.
Score breakdown
| Area | Blau.de | Youfone |
|---|---|---|
| Cost | 9.0Cost 9 leans on the rolling Blau Allnet S Flex at €6.99, with sim only across the range and no handset bundle. | 9.9HigherMagic Deal plans start at €1 a month, well under the site wide median of €9.30. |
| Offer | 9.0Higher9 reflects esim and 5G, roaming across from 100 countries, a multi line discount, and no credit check required. | 8.9eSIM, 5G and wifi calling are all present, EU roaming is included, and terms run 1, 12 and 24 months. |
| Trust | 8.9Higher8.9 rests on Telefónica Germany GmbH & Co. OHG trading since 2005, with support on phone, chat and help centre. | 8.7Trading since 2008 on KPN, no credit check needed, billing across contract and rolling. |
How they place
| Ranking | Blau.de | Youfone |
|---|---|---|
| SIM-only deals | 165 of 416 | 127 of 416 |
| Cheap cell phone plans (MVNOs) | 77 of 137 | 63 of 137 |
| Phone plans with eSIM | 174 of 389 | 137 of 389 |
| Phone plans without a credit check | 9 of 26 | 7 of 26 |
A third option
yesss! has price from at €0, against €6.99 for Blau.de and €1 for Youfone.
yesss! reviewEvery fact side by side
| Fact | Blau.de | Youfone |
|---|---|---|
| Billing | Contract, Rolling, PrepaidCovers more | Contract, Rolling |
| Contract length | 1, 24 | 1, 12, 24Covers more |
| Legal entity | Telefónica Germany GmbH & Co. OHG | Not confirmed |
| Headquarters | Germany | Not confirmed |
| Founded | 2005Lower | 2008 |
| Support channels | Phone, Chat, Help centre, Email | Not confirmed |
Where each stands against the rest
| Fact | Blau.de | Youfone | Median |
|---|---|---|---|
| Price from | €6.99above the median | €1lowest quarter | €5 |
| Roaming countries | from 100at the median | Not confirmed | 100 |
Median across 176 listed providers.
Pros and cons
Blau.de
Pros
- Entry is low for a contract mobile plan: Blau Allnet S Flex starts at €6.99 a month, under the €9.30 entry price across the site.
- No credit check is required, so a signup does not hinge on a credit file.
- An esim is available, so a compatible phone can be provisioned digitally on the host network.
Cons
- Use inside the EU is on fair use terms rather than a stated allowance, so a month of heavy use in Europe can cost extra.
- Blau serves DE, so the deal does not stretch to a second market.
- Terms run 1 and 24 months, and the roomier plans, Blau Allnet M and Blau Allnet XL Promo, sit at the long end, while only Blau Allnet S Flex rolls.
Youfone
Pros
- Magic Deal plans start at €1 a month, well under the site wide entry price median of €9.30.
- A credit check is not required, while 58.7% of the listings on the site do run one.
- Roaming in the EU is included, while the wider market sits mostly on fair use (32.5%) or paid (31.4%) terms.
Cons
- The Magic Deal bundles behind the €1 headline price are sold on the longest of its 1, 12 and 24 month terms, so the cheapest price carries the longest commitment.
- Billing covers contract and rolling only, so there is no prepaid top up option in the range.
- On entry price Youfone ranks 19 of 258 brands, so cheaper entry points exist further down the list.
Who each suits
Blau.de
Who it suits
- Households that already own a handset and want an extra line, since every Blau plan is sim only and a multi line discount applies.
- Anyone who wants to sign up without a credit check, since none is required, and who can pick contract, rolling or prepaid billing from contract, rolling and prepaid.
- Light-to-moderate data users who travel now and then: roaming reaches from 100 countries, with EU use on fair use terms.
Who should look elsewhere
- Shoppers who want to buy straight from the host network: Blau is a seller of type mvno, while GETESA, Lonestar Cell MTN and yesss! each sell as a network.
- Anyone who needs unlimited data, since no Blau plan is unlimited; yesss! sets its own tariff as a network seller.
- Users outside DE, where the range is sold in a single market, so a network from their own home market such as GETESA or Lonestar Cell MTN is the fairer starting point.
Youfone
Who it suits
- Readers in the Netherlands who want a sim only line with a large data bundle at €1 a month.
- Readers with a thin credit file or no credit history, since a credit check is not required.
- Travellers who cross EU borders, since roaming is included.
Who should look elsewhere
- Prepaid shoppers who top up as they go, since Youfone's billing covers contract and rolling and the priced bundles are all fixed term.
- Buyers who would rather buy from the operator itself, since GETESA is a network with its own infrastructure.
- Readers outside the Netherlands, since the service runs on KPN while Lonestar Cell MTN is a network for a different market.
Country by country
| Country | Blau.de | Youfone |
|---|---|---|
| Germany | Yes | No |
Questions about each
Blau.de
How much is the cheapest Blau plan?+
Blau Allnet S Flex is the entry plan at €6.99 a month, billed rolling with a month's notice rather than a fixed term. The next tier, Blau Allnet M, carries a longer commitment, and the largest listed, Blau Allnet XL Promo, sits at the long end of the term range. Among the brands ranked on entry price, Blau holds position 132 of 258.
Does Blau run a credit check?+
No credit check is required, which is why these tariffs sit alongside the no credit check plans in this group. Billing spans contract, rolling and prepaid, so the same walk-through applies whether a customer picks a fixed term or a prepaid option, and an esim is available to get the line running without a paper card.
Youfone
How much does a Youfone sim only plan cost at the start?+
Prices start at €1 a month on the Magic Deal plans, which pair a large data bundle with a multi year term. That sits below the site wide entry price median of €9.30, and Youfone ranks 19 of 258 brands on entry price, so it is cheap without sitting at the top of the cheap list.
How long is the contract and can I leave early?+
Youfone sells over contract terms of 1, 12 and 24 months, and billing runs on contract and rolling terms. The Magic Deal bundles that carry the lowest monthly cost are each priced for a multi year term, so the cheapest headline price is tied to a longer commitment rather than a rolling one.