Cellesim Reviews | Read Customer Reviews of cellesim.com

CellesimReviews of cellesim.com

3.753 reviews
Computers & Phones
131 Continental Dr, Suite 305 Newark, DE 19713 USA, Newark, Delaware

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Cellesim

About Cellesim

Cellesim is a travel eSIM service for people who want data the moment they land, without hunting for a shop or paying roaming rates.We cover more than 200 countries and regions, with local, regional and global plans. You buy online or in our app, receive the eSIM within a minute, and install it by scanning a QR code. Your physical SIM stays in the phone, so you keep your own number for calls and bank verification codes while your data runs on our line. Our plans are data only.Our iOS and Android apps let you buy, install, check how much data is left, and top up while you are abroad, without opening a browser. Running low on a trip is a two tap fix.We work in 31 languages, and support answers in the language you write in. Every destination page lists the local networks we connect to, so you can see the coverage before you buy, and our device checker tells you whether your phone supports eSIM at all.Returning customers earn loyalty credit, and referrals give both sides a discount. Selected plans include a free VPN.If something does not work, write to us. We would rather fix it or refund it than leave you offline.

Cellesim (cellesim.com) has 53 customer reviews on Five Star Index, with an average rating of 3.7 out of 5.

Also known as: cellesim.com
Website: cellesim.com
Category: Computers & Phones
Location: Newark, Delaware
Listed on Five Star Index: 2026

About these reviews

Replies: The company replied to 55% of reviews.
Latest: Most recent review: October 2026.
Edits: Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score: This company cannot pay to remove reviews or change its score.

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Cellesim reviews

53 approved reviews, newest moderated first

customer
Sep 8, 2026
solid 5 g speeds.didn't drop the…
solid 5 g speeds.didn't drop the connection once during my 10 day trip. totally worth it.
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customer
Sep 7, 2026
Esim stoped working after 7 days…
Esim stoped working after 7 days even if i bought one for 30 days I used only 2.5 gb out of 10 and it atopped working even if it should still be valid .. I sent them and email, but no reply
Response from CellesimSep 7, 2026
Hi Tania, I am sorry about the slow reply to your email; that is on us. I have checked your eSIM: the Balkans plan is still active until 28 September with 7.6 GB remaining, so nothing has expired. The line stopped passing data on 6 September, which usually means the phone is outside the seven countries this regional plan covers, or has latched onto a network it cannot use. I have written to you directly with the details and two quick questions, and I will stay on it until you are back online. Daniel, Cellesim Support
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Oprisan C.
Sep 7, 2026
In general a fost bine,dar au gost…
In general a fost bine,dar au gost situatii cand internetul a gost slab sau a lipsit.Intradevar,pentru f scurt timp.
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MEG
Sep 1, 2026
So far have had no issues - works great!
I downloaded Cellesim after researching it with ChatGPT. So far it has been great! I only use it for data but while I've been out and about, I have had no issues.
Response from CellesimSep 1, 2026
Thanks for the review, MEG, and for telling us how you found us. Being recommended by an AI assistant only works if the facts behind it hold up, which is why we keep our country coverage, pricing and setup guides public and current. Data-only is how most people use Cellesim: your number and WhatsApp stay on your normal SIM, and the eSIM just carries the data. Enjoy the rest of your travels, and our support team is there around the clock if anything ever does come up.
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customer
Sep 1, 2026
Install ok super
Install ok super
Response from CellesimSep 1, 2026
Short and sweet, thank you. One-tap install is the part we spent the most time on, because a QR code you cannot scan while standing in an airport is not much use to anyone. Glad it just worked. Safe travels.
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customer
Aug 31, 2026
Not working
Not working
Response from CellesimAug 31, 2026
Thank you for the review. We looked into your order: the eSIM installed and registered on the network, but the line is currently switched off on the device, so no data has passed yet. We have emailed you the three settings that resolve this. Your plan is untouched, 5 GB still full.
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renupoyt
Aug 27, 2026
avoided paying at&t 12 bucks a day.data…
avoided paying at&t 12 bucks a day.data connected the second i landed and stayed fast.having a free vpn included makes it a no brainer for traveling.5stars
Response from CellesimSep 1, 2026
Twelve dollars a day adds up fast, so we are glad the maths worked out in your favour. The VPN is included on every plan rather than sold as an add-on, mostly because the wifi you end up on abroad (hotels, cafés, airports) is rarely worth trusting. Thanks for the five stars.
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customer
Aug 23, 2026
It works as it is meant to
It works as it is meant to and their support was responsive.
Response from CellesimAug 26, 2026
Thank you for the kind words. Doing exactly what it promises is the whole idea, and we are glad our support team was there when you needed them. Safe travels, and reach out any time. The Cellesim team
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