Skip to content
ReviewAdviser
Forgot password?
Marshmallow logo

100%Would buy again

Ordering
Service
Price
Delivery

This score is based on 20 real reviews

Reviews (20)

Solid deal, bit of a wait on the sim

Honestly this is one of the better sim only deals I've seen this year. The data is generous for the money and the coverage has held up on my commute. The only thing was the sim took a few extra days to arrive, longer than I'd hoped.

Arjun B.
1 person found this helpful

Fine but the bill took a while to sort

Been with them a long time now and the service is generally fine. Compared with my old network they're a bit cheaper, though when I went over my data allowance the charges were hard to follow. It took a couple of calls to get it straightened out. Still stay with them for the price.

Robert K.
0 people found this helpful

lowest bill I've had in years

I needed to bring my phone bill down after a rise from my old provider. Signing up was quick and I picked the plan with the most data for the lowest monthly cost. The sim turned up in a couple of days and the switch went smoothly. My bill is down by a good amount and I've had no issues since.

Tariq L.
2 people found this helpful

Signed up in ten minutes

Took me about ten minutes to sign up on the site, which was the bit I was dreading most, because I'd heard the port over could drag on for ages. It didn't, my number moved across within the day and I had no gap in signal. The only small niggle is the app asked me to confirm my address twice, which was a bit annoying but not a big deal. Happy so far.

Georgia B.
0 people found this helpful

better value than the high street shops

Honestly the plan is better value than what you get from the high street networks for the same data. I checked the coverage at home before signing up and it has been reliable. The monthly price has not gone up at all since I joined. Would go with them again.

Sandra L.
2 people found this helpful

Very good value and they sort things properly

I'd say this is one of the better phone deals going at the moment and I've been paying less than I did before. The switch over was handled for me so I didn't have to think about it. When I had a query about a charge they explained it clearly and refunded what needed refunding without any fuss. The plan itself is simple and does what I need from it. I'd happily stay on it.

Yasmin B.
0 people found this helpful

Way cheaper than my last network

Compared with my old network these are way cheaper and I didn't lose any data I actually use. Got the sim through quickly and it worked straight away. Easy app.

Jade W.
3 people found this helpful

Sim only plan signed up on the bus

Signed up for a sim only plan on my phone between stops. Took about five minutes and the confirmation email came straight away. Sim arrived a couple of days later. Good price for the data.

James H.
1 person found this helpful

Switched in the lunch break

Ported my number over on my lunch break and it was done before I'd finished my sandwich. App is clunky but the bill is tiny now. Would do it again.

Daniel M.
1 person found this helpful

Sim arrived but took ages to activate

The sim came quick, two days, but getting it to work took a while. Had to wait about a day before the data kicked in. Price is decent and the app is fine. Support chat was ok but slow to reply.

Harry G.
0 people found this helpful

Plan is good value, no fuss

Took the sim only plan a few months back and the price per gig is hard to beat. I checked the terms before signing up and nothing was hidden in the small print. Sim arrived when promised and it has worked well. Just what I wanted.

Emeka W.
3 people found this helpful

tried a few before picking this one

I needed a new contract after my last one ended and I'd compared several providers before choosing this one. The price for the data was the main reason I signed up, and the app made it easy to pick what I wanted. The sim arrived promptly and the first month went smoothly. Coverage has been good where I live and I've not had any dropouts yet, which was what I was most worried about given the cheaper price.

Sam R.
1 person found this helpful

Better than the big networks for data

Compared with the usual big network plans these are cheaper for the same amount of data, and I've been on them two years. Setup in the app is quick. Happy with it.

Rebecca S.
1 person found this helpful

cheapest plan for what I actually use

I needed to cut my phone bill and was looking for the cheapest plan that still gave me enough data for work. I went with the basic sim only option and it's saved me a fair bit each month. The sign up was simple and the sim came through the post promptly. Nothing to complain about on price or delivery.

Samantha S.
2 people found this helpful

Got the sim only plan for my contract

I signed up for the sim only plan when my old contract ran out and the sim turned up in the post a couple of days later. The plan is cheap and the data lasts me the month. Only little niggle is the app is a bit slow to load sometimes, but it does the job.

Ellie F.
1 person found this helpful

Compared to my old provider it's cheaper

Compared to the network I was on for years, this is noticeably cheaper for the same amount of data, which made the switch worth it. I was nervous about moving my number but it went across without any trouble. The monthly statement is clear and easy to read. I've been with them a while now and happy.

Gillian J.
1 person found this helpful

needed a phone contract after moving

I'd just moved flat and my old contract had ended so I needed a new phone plan quickly with no credit check hassle. Signing up took about ten minutes on my phone and the app showed me exactly what I'd be paying each month. The sim turned up the next day and it's been working fine since. First time using them and it was easy.

Thomas P.
4 people found this helpful

Sim only deal on a rolling monthly plan

I took out the sim only plan with them last spring and I have to say it has been very good value for the data I use. The signup was done entirely online and I had the sim through the post within three working days. I did ring once with a question about my bill and the lady on the phone was patient and sorted it out straight away. I'd be happy to stay with them.

Patricia C.
4 people found this helpful

Got a new sim for my mum's phone

I set up a sim only plan for my mum's old phone after she wanted to keep her number. The sim arrived in a few days and the switch over was simple once I followed the steps in the app. Price is a bit higher than the cheapest deals I found, but the data is generous.

Kayleigh B.
3 people found this helpful

Very pleased with the plan

I was rather apprehensive about changing providers at my age, but the sign up was straightforward and the young lady on the chat line was most patient with me. The monthly charge is considerably lower than what I was paying before and my grandson says the signal is perfectly good around the house. I'd happily recommend them to anyone who doesn't need a shop to visit.

Sheila B.
0 people found this helpful

Write a review of Marshmallow

Share your own experience to help other customers. Your review is published under your name.

Rate Marshmallow from 1 to 5 stars
Ordering
Service
Price
Delivery
Would you buy from Marshmallow again?

At least 40 characters.

About Marshmallow

Marshmallow is a UK mobile and broadband provider that sells its services directly to customers online rather than through high street shops. The company offers SIM-only and handset contracts for mobile phones alongside home broadband, with plans aimed at keeping monthly costs predictable. Its service is managed through a mobile app and a web account, where customers can check their usage, manage their plan and contact support.

Marshmallow positions itself as a straightforward alternative to the larger networks, with a focus on transparent pricing and no hidden charges. Its customers are individuals and households looking for affordable connectivity without long-term complexity, though this description applies broadly to its target market rather than a fixed profile.

Details

Contact information

Categories for Marshmallow

Telecom | Mobile & telephone

Page statistics

Is this your company? Claim this listing