Updated September 30, 2026 · TariffCue Editorial Team
Chattr SIM Only vs Simpel
Chattr SIM Only vs Simpel: the differences
| Compare |  Chattr SIM Only |  Simpel |
|---|---|---|
| Host network | O2 | Odido |
| Price from | £5 | €2.50 |
| Mid-contract price rises | No price hikes | Tariffs may be indexed annually as specified in your contract |
| Markets | GB | NL |
| Reference plan prices | Not confirmed | Cheapest 12-month 30GB+: 40GB EUR12.00/mo, 40GB, 12 months; Cheapest unlimited: none listed - unlimited calls addon EUR1.50/mo; Cheapest overall: from EUR2.50/mo |
| eSIM | Not confirmed | Yes |
| Roaming countries | 43 | Not confirmed |
| Data rollover | Not confirmed | No |
| Network coverage | 99% | Not confirmed |
Same on both: Seller type (Mvno), SIM-only (Yes), 5G (Yes), EU roaming (Included), Credit check required (No).
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Key differences
- Simpel scores higher overall: 9.1 vs 8.9.
- Support channels: only Simpel offers Help centre, Community.
- Billing: only Chattr SIM Only offers Rolling.
- Billing: only Simpel offers Contract.
- Contract length: only Chattr SIM Only offers 1.
- Contract length: only Simpel offers 12, 24.
- Markets: only Chattr SIM Only offers GB.
- Markets: only Simpel offers NL.
Our verdict on each
Chattr SIM Only
Chattr SIM Only suits people in GB who want a rolling SIM that can leave any month and will not raise the bill. Roaming is already included.
Simpel
Simpel is a Dutch virtual network operator for people who want a cheap sim only plan, a 5G connection and an eSIM without a credit check, with tariffs starting at €2.50 a month. The catch is commitment: plans run on 12 and 24, and data rollover is not on the menu.
Score breakdown
| Area | Chattr SIM Only | Simpel |
|---|---|---|
| Cost | 9.1Entry price of £5 on rolling billing, and No price hikes keeps renewals at the same figure. | 9.6HigherSim only tariffs start at €2.50, below the €9.30 median here, though data rollover is not offered. |
| Offer | 8.7Roaming in 43 countries, included, 5G and 99% coverage on O2. | 8.8HigherBroad scope: 5G, an eSIM, no credit check and fibre reaching 1,000 Mbps on fttp. |
| Trust | Not confirmed | 8.7An mvno on Odido run by Simpel.nl B.V., trading since 2007, with support on email, help centre and community. |
Availability and regulation
| Country | Chattr SIM Only | Simpel |
|---|---|---|
| Headquarters | United Kingdom | Netherlands |
How they place
| Ranking | Chattr SIM Only | Simpel |
|---|---|---|
| SIM-only deals | 200 of 416 | 150 of 416 |
| Cheap cell phone plans (MVNOs) | 94 of 137 | 73 of 137 |
| Phone plans without a credit check | 15 of 26 | 8 of 26 |
What we checked
Chattr SIM Only
- chattr.co.uk: 16 facts, checked September 30, 2026
Simpel
- simpel.nl: 18 facts, checked September 30, 2026
Every fact side by side
| Fact | Chattr SIM Only | Simpel |
|---|---|---|
| Billing | Rolling | Contract |
| Contract length | 1 | 12, 24 |
| Legal entity | Kashcow Ltd | Simpel.nl B.V. |
| Headquarters | United Kingdom | Netherlands |
| Founded | Not confirmed | 2007 |
| Support channels | Email, Help centre, CommunityCovers more |
Broadband
| Fact | Chattr SIM Only | Simpel |
|---|---|---|
| Technology | Not confirmed | Fttp |
| Top download speed (Mbps) | Not confirmed | 1,000 |
| Upload speed (Mbps) | Not confirmed | 100 to 1,000 |
| Exit fee terms | Not confirmed | After minimum term rolling monthly with 1 month notice |
| Router | Not confirmed | Modem included |
| Address checker | Not confirmed | https://www.simpel.nl/internet/product/zelf-samenstellen |
Where each stands against the rest
| Fact | Chattr SIM Only | Simpel | Median |
|---|---|---|---|
| Roaming countries | 43below the median | Not confirmed | 100 |
| Network coverage | 99%at the median | Not confirmed | 99% |
Median across 176 listed providers.
Pros and cons
Chattr SIM Only
Pros
- £5 is the entry price on the SIM only plan, and No price hikes means the renewal bill does not climb
- included roaming across 43 countries comes as standard rather than as an add-on
- Rolling billing on a term of 1-month means the line can end without an exit charge
Cons
- Support runs on email only, so a question with no quick email answer waits for a reply
- Service covers GB alone, so the SIM does not work for a trip outside the UK unless roaming applies
- Chattr SIM Only is an mvno on the O2 network, so coverage follows the host rather than a network of its own
Simpel
Pros
- A credit check is not required, so an application does not rest on a credit file.
- An eSIM and 5G are both offered, so a recent handset works without waiting for a card in the post.
- EU roaming is included in the sim only line, and only 36.1% of the listings include it.
Cons
- Data rollover is not offered, so unused data from a quiet month is lost rather than carried into the next one.
- Plans run 12 and 24 with billing on contract, and leaving early is governed by After minimum term rolling monthly with 1 month notice, while only 78% of the listings are month to month.
- Support runs on email, help centre and community, with no phone line listed, while 81.5% of the brands offer one.
Who each suits
Chattr SIM Only
Who it suits
- Anyone in GB already holding a handset and happy to bring their own SIM
- Travellers who want included across 43 countries without a roaming add-on
- People who need a credit check free line and prefer rolling billing over a locked contract
Who should look elsewhere
- GETESA, Lonestar Cell MTN and yesss! sell as networks rather than an mvno, so buyers wanting the host's own support and shop presence should look there first
- Phone buyers wanting a handset bundled with the line, as this offer is SIM only
- People wanting phone or chat support, since help runs on email alone
Simpel
Who it suits
- People in NL who bring their own handset and want sim only service on 5G with no credit check.
- Households that want both lines in one place, since fibre runs to 1,000 Mbps and hardware is Modem included.
- Travellers who would rather not buy a roaming pack, since EU roaming is included.
Who should look elsewhere
- People set on a network operator rather than a virtual one: Simpel is an mvno, while GETESA (network) and yesss! (network) sit on the other side of the market.
- Anyone unwilling to sit a full term: plans run 12 and 24 with notice set by After minimum term rolling monthly with 1 month notice, so if your plans may change, read the terms at Lonestar Cell MTN (network) as well.
Country by country
| Country | Chattr SIM Only | Simpel |
|---|---|---|
| United Kingdom | Yes | No |
Questions about each
Chattr SIM Only
What does the cheapest Chattr SIM Only plan cost?+
The SIM only line starts at £5. That is the entry price for the plan rather than a promotional first bill, and No price hikes applies, so the same figure carries over to renewal. Larger data allowances are available on the same rolling billing.
Does the price go up when I renew?+
No. The stated position is No price hikes, so the monthly figure a customer starts on is the figure carried forward. Renewal pricing is therefore predictable, which is unusual among rolling SIM only deals where providers often adjust charges over time.
Simpel
How much does a Simpel sim only plan cost to start?+
Sim only plans start at €2.50 a month, below the €9.30 median across the brands tracked here. The lowest priced bundle with a larger data allowance runs on a year contract, and unlimited calls come as a small monthly add-on rather than a plan of their own. Read the tariff terms, since the entry price is separate from what you pay later.
How long is the contract and can I leave early?+
Plans run 12 and 24 with billing on contract, and the notice terms are After minimum term rolling monthly with 1 month notice. Only 78% of the listings are month to month, so a shorter rhythm does exist elsewhere in the market. Read that notice wording before you sign, because rolling monthly is not the same as having no term.