# Chattr vs VOXI: which is the better SIM-only deal in 2026?

> Chattr is the better value for unlimited data: £3.75 for the first month with HONEST75, then £15 falling to £13, against £35 a month on VOXI Unlimited. VOXI suits heavy social media users on its capped plans, where selected social apps do not count against the allowance.

## Key takeaways
- Unlimited data: Chattr £3.75 in month one with HONEST75, then £15 falling to £13; VOXI Unlimited £35 a month.
- First 12 payments on unlimited: Chattr about £161, VOXI £420.
- 100GB-class: VOXI's £20 plan gives 100GB with unlimited social, music and video; Chattr's Freedom One is unlimited everything for £15.
- VOXI pays a gift card after two paid months through a referral link; Chattr takes 75% off the first month with HONEST75.
- Both are rolling plans with no contract. Chattr includes roaming in 43 European destinations; VOXI sells a Roaming Pass from £2.45 a day.

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

## Comparison

| | Chattr | VOXI |
|---|---|---|
| New-customer deal | HONEST75: 75% off the first month | Gift card after two paid months via a referral link |
| Unlimited data | £3.75 month one, then £15 falling to £13 | £35 a month |
| First 12 payments, unlimited | About £161 | £420 |
| Plan at £15 | Unlimited data, calls and texts | 35GB (140GB until 30 September 2026) with unlimited social, music and video |
| Cheapest plan | 6GB £10 (£2.50 in month one) | £10 plan with unlimited social |
| Network | O2 or Vodafone | Vodafone and Three |
| Roaming | 43 European destinations included | Roaming Pass from £2.45 a day |
| Deal | honestcodes.co.uk/go/chattr + HONEST75 | https://honestcodes.co.uk/go/voxi |

## The price of unlimited

VOXI's Unlimited plan costs £35 a month. Chattr's Freedom One costs £3.75 for the first month with HONEST75, then £15, falling to a £14 loyalty price and £13 from month 12. Over the first 12 payments that is about £161 on Chattr against £420 on VOXI.

At £15, the price where Chattr's unlimited plan sits, VOXI offers 35GB of general data (140GB under its current offer to 30 September 2026) with unlimited social, music and video apps. Chattr gives unlimited data for every app at the same price.

## Where VOXI stands out

VOXI's zero-rated data is its signature: selected social apps never touch the allowance on any plan, music apps are added from £12 and video apps, YouTube included, from £15. Someone whose data goes almost entirely on those apps can manage on a capped VOXI plan.

VOXI also rewards joining through a referral link with an Amazon.co.uk or Just Eat gift card or PayPal cash, sized by plan, after two paid months.

## Roaming and the network

Chattr includes roaming in 43 European destinations on its plans, using your UK allowance under a fair-use policy. VOXI sells a European Roaming Pass from £2.45 a day. For regular trips to Europe, Chattr's included roaming saves that cost.

Chattr sells plans on O2 and Vodafone; VOXI is Vodafone's own brand on the combined Vodafone and Three network. Both offer eSIM and rolling plans with no contract.

## The verdict

Pick Chattr if the goal is unlimited data for the smallest bill: the gap to VOXI Unlimited is more than £250 over a year, and HONEST75 at honestcodes.co.uk/go/chattr makes the first month £3.75. Pick VOXI, through https://honestcodes.co.uk/go/voxi, if your data goes mostly on social apps and a gift card for joining appeals. VOXI's plan prices and Chattr's were each taken from the network's own site in September 2026.

## Frequently asked questions

### Is Chattr cheaper than VOXI?

For unlimited data, yes: £3.75 for the first month with HONEST75, then £15 falling to £13, against £35 a month on VOXI Unlimited.

### What code gets Chattr's unlimited plan down to £3.75?

HONEST75. It is HonestCodes' own Chattr code and cuts the first payment by three quarters, so Freedom One drops from £15 to £3.75. Type it at checkout after following honestcodes.co.uk/go/chattr.

### Can I use a promo code on VOXI?

Not with a referral: VOXI's terms say a promo code at checkout invalidates the referral reward. Join through https://honestcodes.co.uk/go/voxi with no code for the gift card.

### Which is better for social media?

VOXI, on its capped plans: selected social apps do not use your data allowance. On Chattr's Freedom One every app is unlimited anyway.

### Do Chattr and VOXI include roaming?

Chattr includes roaming in 43 European destinations. VOXI sells a European Roaming Pass from £2.45 a day.