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SIM only deals with no mid-contract price rise

Every SIM only plan we compare whose contract schedules no mid-contract price rise, sorted by monthly cost. The price you sign at is the price you pay.

Deals refresh continuously from the live feed · page reviewed 30 August 2026

Check your signal before you switch

Coverage depends on the network this SIM runs on. Ofcom's official checker shows 4G and 5G coverage at your address for every network.

Mobile deal data is fetched live from our data platform each time you search or filter, so listings reflect the latest information networks have supplied. Prices and offers can change and may occasionally differ on the network's own website; the network's checkout price is the one that applies. Coverage and speeds vary by network and location, so check Ofcom's mobile coverage checker before you switch. We compare deals from a significant share of the UK market, but no comparison site covers every deal from every network. See how we compare for the networks we include and how results are ranked.

About SIM plans with no price rises

Every deal on this page keeps its monthly price for the whole minimum term. Many SIM contracts include a scheduled price rise, usually each April. We check the contract terms of every deal in our feed and only show the plans without one, so the price you sign up at is the price you stay on. Rise-free plans start from £2.90 a month, and most run on the big four's masts.

Quick facts

  • Every deal shown schedules no mid-contract price rise in its contract terms
  • Rise-free plans start from £2.90 a month
  • Most rise-free networks run on the big four's masts, so you keep the coverage
  • A fixed term deal here locks its price for the whole minimum term

What counts as a no price rise deal

Networks publish their price rises in the contract terms: the amount, and the date it takes effect. Our feed carries that schedule for every deal, and we already show it on every deal card across Switchity. This page goes one step further and lists only the deals with nothing scheduled.

Two caveats keep this honest. First, rise-free describes the deals on sale today; a network can add a rise to the deals it sells next year. Second, Sky Mobile is a special case. Its contracts schedule no fixed rise, but the terms say the price could change with notice, so we do not count it as truly rise-free.

Why the April letter is worth avoiding

Most plans from the big networks schedule a rise every April. Since Ofcom's January 2025 rules the amount must be stated in pounds and pence before you sign, which is clearer, but there is a catch. Because you agreed to the rise at the point of sale, it does not trigger a penalty-free exit. The clean way out is to never agree to one, and that is what this page is for. The rises are not trivial either: a flat amount added to a small bill is a big percentage, so the cheapest plans are hit hardest. Our guide to SIM only mid-contract price rises has the rules, the per network amounts and your exit rights in full.

You keep the coverage

Skipping the rise does not mean settling for a weaker signal. Most rise-free networks are smaller brands running on the same masts as the networks that raise prices. iD Mobile and SMARTY use Three's network, giffgaff runs on O2, VOXI and Talkmobile use Vodafone, and spusu uses EE. Coverage on the high street brand and its rise-free lodger is the same; the difference is the April letter. Use the coverage checker above to confirm the host network is strong at your postcode before you commit, then filter this page by network to shortlist deals on that host.

Fixed term or rolling: two kinds of certainty

Every rolling plan qualifies for this page, because a plan with no minimum term has nothing to schedule a rise inside. But rolling certainty is the weaker kind: the network can change the ongoing price with notice, and your protection is leaving before the change starts. A fixed term deal with no scheduled rise is the stronger promise, since the price is locked for the whole term and the network cannot move it. So decide what you are buying. If you want the exit, a 30 day SIM gives you that and the flat price along the way. If you want a bill that cannot move for a year or two, pick a 12 or 24 month deal from this page.

The small print worth checking

Three things keep the promise honest. First, the lock ends with the minimum term: once a contract rolls on, any network can change the price with 30 days' notice, so set a reminder for the end date. Second, a rising deal with a deep introductory discount can occasionally cost less over the term than a rise-free rival, so compare what you would pay across the full term, not just the first month. Third, allowances and perks vary between terms and networks like everything else in the market; the absence of a rise is one column in the decision, not the whole answer.

Pros

  • The price you sign at holds for the whole minimum term on fixed term deals
  • No April letter, no notice windows and no exit-rights homework
  • Most rise-free networks use the big four's masts, so coverage does not suffer
  • Rolling and fixed term options both qualify, so you keep the choice of commitment

Cons

  • The big networks' own-brand plans mostly schedule rises, so their bundles and perks are thinner here
  • A rising deal with a deep launch discount can occasionally cost less over the full term

Our verdict

If you want a mobile bill that stays put, a fixed term deal from this page is the strongest promise on the market; the rise-free field is now big enough that certainty rarely costs extra.

Get your no price rise SIM deal in 3 steps

Choose your deal

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Keep your current number by texting 'PAC' to 65075. It's free and takes minutes.

Complete your order

Finish your application with no price rise SIM. Your new SIM will be delivered and your number transferred automatically.

Read our full guide to switching and keeping your number

Eco impact

Our impact grows with you

Every successful switch through Switchity plants 2 trees through our verified reforestation partner, Ecologi. Our switchers have already captured over 8,240 kg of CO₂ and released nearly 42,436 kg of oxygen annually.

412 / 1000 trees41% to goal
Verified reforestation partner: Ecologi
Best Environmentally-Focused Comparison Platform 2026, SME News
2
Trees per switch
8,240+ kg
CO₂ captured
£25,000+
Customer savings

No price rise SIM deals: FAQs

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Our community impact

Every switch through Switchity supports reforestation and saves our community money on their broadband.

412
Trees grown together
£25,000
Saved by community
£250
Typical yearly saving
588
Trees to go to goal
Claudia Constantin
Written by Claudia Constantin, Co-Founder & Managing EditorPublished