# Chattr or VOXI: which SIM gives more for your money?

> Chattr, for unlimited data: £3.75 for month one with HONEST75, then £15 dropping to £13, against £35 a month for VOXI Unlimited. VOXI earns its place on capped plans for social-heavy users, and pays a gift card through its referral link.

Last checked: 2026-09-24. Page: https://topreferrals.co.uk/compare/chattr-vs-voxi

## Key takeaways
- Unlimited: Chattr £3.75 then £15 falling to £13 with HONEST75; VOXI £35 a month.
- Twelve payments on unlimited: about £161 on Chattr, £420 on VOXI.
- VOXI's capped plans keep selected social apps off the allowance; its £20 plan adds 100GB with unlimited social, music and video.
- VOXI's referral pays a gift card after two paid months via https://topreferrals.co.uk/go/voxi; Chattr's code cuts the first month by 75%.
- Chattr includes roaming in 43 European destinations; VOXI sells a Roaming Pass from £2.45 a day.

## Compared offers
- **[VOXI](https://topreferrals.co.uk/referrals/voxi)** — you get Up to £40 (Up to £40 gift card).
  - Link: https://topreferrals.co.uk/go/voxi
- **[Chattr](https://topreferrals.co.uk/referrals/chattr)** — you get 75% off month one (75% off month one: unlimited for £3.75).
  - Code: `HONEST75`
  - Link: https://topreferrals.co.uk/go/chattr

[Chattr](/referrals/chattr) and [VOXI](/referrals/voxi) are both rolling, no-contract SIMs. They pull in different directions: Chattr leads on the price of unlimited data, while VOXI leads on social apps that do not use your allowance.

## Unlimited data

This is where the two differ most. VOXI Unlimited is £35 a month. Chattr's Freedom One is £3.75 for the first month with HONEST75, then £15, falling to £14 and to £13 from month 12. Over twelve payments that is about £161 on Chattr and £420 on VOXI, a difference of more than £250 for the same unlimited data.

## Capped plans and social apps

VOXI's own strength is on capped plans. Selected social apps never touch the allowance on any VOXI plan; music apps are added from £12 and video apps, YouTube included, from £15. At £20, VOXI gives 100GB with all three. Someone whose data goes mostly on those apps can manage on a VOXI plan below unlimited. At £15, the same money that buys VOXI's 35GB plan (140GB under its offer to 30 September 2026) buys Chattr's unlimited data for every app.

## Sign-up offers

The two reward new customers differently. Chattr's HONEST75 takes 75% off the first payment at checkout. VOXI pays a gift card — Amazon.co.uk, Just Eat or PayPal cash, sized by plan — after two paid months, when you join through https://topreferrals.co.uk/go/voxi with no promo code.

## Abroad

Chattr includes roaming in 43 European destinations using your UK allowance. VOXI sells a European Roaming Pass from £2.45 a day. For anyone in Europe several times a year, Chattr's included roaming saves that daily charge.

## Which to choose

For unlimited data, Chattr, clearly: https://topreferrals.co.uk/go/chattr with HONEST75. For social-first use on a capped plan with a gift card for joining, VOXI through https://topreferrals.co.uk/go/voxi. Both networks' prices were read on their own sites in September 2026, and HONEST75 was tested at Chattr's checkout on 24 September 2026.

## Side by side

| Chattr | VOXI |
| --- | --- |
| Unlimited plan | £3.75 month one, then £15 → £13 | £35 a month |
| Twelve payments, unlimited | About £161 | £420 |
| £15 plan | Unlimited data | 35GB (140GB to 30 Sep 2026) + unlimited social, music, video |
| Sign-up offer | HONEST75: 75% off month one | Gift card after two months via referral |
| Network | O2 or Vodafone | Vodafone and Three |
| Europe | 43 destinations included | Roaming Pass from £2.45 a day |
| Contract | None | None |
| Code or link | HONEST75 + https://topreferrals.co.uk/go/chattr | https://topreferrals.co.uk/go/voxi, no code |

## FAQ

### Which is cheaper for unlimited data, Chattr or VOXI?
Chattr. Freedom One is £3.75 for the first month with HONEST75, then £15 falling to £13. VOXI's Unlimited plan is £35 a month.

### Can I use a discount code on VOXI?
Not if you want the referral reward: VOXI's terms say a promo code at checkout invalidates it. Join through https://topreferrals.co.uk/go/voxi with no code instead.

### Which is better for social media?
On a capped plan, VOXI: selected social apps do not use your allowance. On Chattr's Freedom One all data is unlimited, social included.

### Which is better for trips to Europe?
Chattr includes roaming in 43 European destinations on your UK allowance. VOXI charges for a European Roaming Pass, from £2.45 a day.