# Chattr vs Lyca Mobile: which SIM-only deal is cheaper in 2026?

> Chattr is the cheaper unlimited SIM. With HONEST75, unlimited data costs £3.75 for the first month and then £15, falling to £13, against Lyca Mobile's £12.50 first month and £25 after. Lyca Mobile suits people who call abroad, with 100 international minutes on every 30-day plan.

## Key takeaways
- Unlimited data, first month: Chattr £3.75 with HONEST75; Lyca Mobile £12.50 with its 50% off.
- Unlimited data after that: Chattr £15, falling to £13 from month 12; Lyca Mobile £25 per 30 days.
- First 12 payments on unlimited: Chattr about £161, Lyca Mobile £287.50 on the 30-day plan or £162 on a 24-month contract.
- Networks: Chattr on O2 or Vodafone; Lyca Mobile on EE. Neither needs a credit check on 30-day plans.
- Lyca Mobile includes 100 international minutes on every 30-day plan; Chattr includes roaming in 43 European destinations.

## Quick facts
- Canonical URL: https://honestcodes.co.uk/guides/chattr-vs-lyca-mobile
- Comparing: https://honestcodes.co.uk/codes/chattr, https://honestcodes.co.uk/codes/lyca-mobile
- Last verified: 2026-09-24
- Eligible region: United Kingdom

## Comparison

| | Chattr | Lyca Mobile |
|---|---|---|
| New-customer deal | HONEST75: 75% off the first month, any plan | 50% off the first 30 days, priced on the plan |
| Unlimited data | £3.75 month one, then £15 falling to £13 | £12.50 first 30 days, then £25 |
| First 12 payments, unlimited | About £161 | £287.50 (30-day) or £162 (24-month) |
| Mid-size plan | 50GB £12 (£3 in month one) | 75GB £15 (£7.50 first 30 days) |
| Cheapest plan | 6GB £10 (£2.50 in month one) | 5GB £5 (£3.50 first 30 days) |
| Network | O2 or Vodafone | EE |
| Roaming | 43 European destinations, fair use | EU; India on the larger plans |
| International minutes | Charged separately | 100 on every 30-day plan |
| Deal | honestcodes.co.uk/go/chattr + HONEST75 | honestcodes.co.uk/go/lyca-mobile |

## Unlimited data: Chattr costs less from the first month

On unlimited data the gap is wide. Chattr's Freedom One with HONEST75 costs £3.75 for the first month; Lyca Mobile's UK Plan Unlimited costs £12.50 for its first 30 days. After that Chattr charges £15 and falls to £13 from month 12, while Lyca charges £25 every 30 days.

Across the first 12 payments that is about £161 on Chattr against £287.50 on Lyca's 30-day plan, a saving of more than £120.

## Lyca's 24-month contract

Lyca Mobile also sells a 24 Month Unlimited plan at £9 a month for six months and £18 after. Year one comes to £162, level with Chattr. In year two Lyca's plan costs £216 and Chattr £156, and Chattr asks for no contract. Over two years Chattr is about £317 to £318 and Lyca's contract £378.

## Smaller plans

For lighter users the comparison is closer. Lyca's 5GB Smart plan is £3.50 for the first 30 days and £5 after, and its 30GB National Plus is £5 then £10. Chattr's 6GB is £2.50 in month one with HONEST75, then £10, and its 50GB is £3 then £12, with unlimited UK calls and texts on every plan.

Someone who needs 30GB or less and wants the lowest standard price will find it at Lyca Mobile. From 50GB upwards on 30-day plans, and above all on unlimited, Chattr costs less.

## Networks, roaming and calling abroad

Lyca Mobile runs on EE. Chattr sells plans on O2 and Vodafone and quotes 99% 4G and 5G UK coverage. Checking which network is strongest where you live and work is the best way to choose between them.

Chattr lets you use your allowance in 43 European destinations, including Switzerland, Jersey, Guernsey and the Isle of Man. Lyca includes EU roaming on every plan, with India added on the larger plans, and 100 international minutes on every 30-day plan, which makes it the natural pick for regular calls abroad.

## The verdict

For unlimited data at the lowest price with no contract, Chattr wins: open honestcodes.co.uk/go/chattr and enter HONEST75 for £3.75 in month one. For international calling built into the plan, Lyca Mobile at honestcodes.co.uk/go/lyca-mobile. Both networks' prices were read on their own sites in September 2026, and HONEST75 was tested at Chattr's checkout on 24 September 2026.

## Frequently asked questions

### Is Chattr cheaper than Lyca Mobile?

On unlimited data, yes. Chattr is £3.75 for the first month with HONEST75, then £15 falling to £13; Lyca Mobile is £12.50 for the first 30 days, then £25.

### Is there a Chattr promo code?

Yes: HONEST75, exclusive to HonestCodes. It takes 75% off your first month on any Chattr plan. Enter it at checkout after opening honestcodes.co.uk/go/chattr.

### Does Lyca Mobile have a promo code?

No code is needed. Lyca Mobile's 50% off the first 30 days is priced onto the plan when you order through honestcodes.co.uk/go/lyca-mobile.

### Which network do Chattr and Lyca Mobile use?

Chattr sells plans on O2 and Vodafone. Lyca Mobile runs on EE.

### Which is better for calling abroad?

Lyca Mobile. Every 30-day plan includes 100 international minutes. Chattr charges calls from the UK to international numbers separately.