OneSimCardReviews of onesimcard.com

4.0580 reviews
Internet & Software

OneSimCard

About OneSimCard

OneSimCard.com provides inexpensive international mobile connectivity for travelers, businesses, and connected devices, helping customers stay connected wherever their journeys or operations take them. A service of Belmont Telecom, Inc., OneSimCard combines telecommunications experience with practical solutions designed to simplify global communications and help customers manage their connectivity costs. We've been helping our customers stay connected for over 30 years.Our services include international eSIMs and physical SIM cards, prepaid mobile data plans, voice and text options, and corporate mobile solutions. Travelers can choose connectivity that fits their destinations, devices, and usage needs, with convenient online account management and recharging. Our OneSim VoIP app provides additional calling and messaging options over an internet connection.For businesses, OneSimCard also offers IoT and M2M connectivity for applications such as asset tracking, fleet management, connected equipment, and remote monitoring. Flexible connectivity options and SIM management tools help organizations support deployments ranging from a handful of devices to larger international operations.Supporting our customers is central to everything we do. We understand that selecting a service is only the beginning: customers also need clear guidance, straightforward setup instructions, and knowledgeable assistance when questions arise. Our team helps customers navigate product choices, activation, account management, and technical troubleshooting, supported by online resources and direct customer support.Whether you are planning an overseas vacation, keeping employees connected abroad, or managing devices across borders, our goal is the same: to make international connectivity easier to understand, simpler to manage, and backed by people committed to helping you succeed.

OneSimCard (onesimcard.com) has 580 customer reviews on Five Star Index, with an average rating of 4.0 out of 5.

Also known as: onesimcard.com
Website: onesimcard.com
Category: Internet & Software
Listed on Five Star Index: 2026

About these reviews

Replies: The company replied to 28% 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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Sam

Feb 10, 2020

The sim cards work HOWEVER...

The sim cards work. However, their customer service is on par with comcast. They are animals. One would think that reloading your account would be easy. Forget it. You have to upload authorization forms, with lots of personal info, in order to make a simple payment. Oh, and they say you can pay with paypal... however, good fn luck finding it. After speaking to the customer serviced dullard cowards, they gave me the run around. Bottom line, all i had to do was upload the form. I did. Against my will. Then... no paypal option. You're best bet is to simply but a sim at the air port when you land. They are overpriced and scummy, but at least they let you know that up front. OneSim's agents are subhuman. I'd like to believe they are simply imbeciles rather than evil, but that's a stretch. They're reply with some soft bs garbage, but don't be mistaken. The tech works... payments and customer service are, however, some of the worst on this planet or any other.

Response from OneSimCardFeb 10, 2020

Hello Sam, We are sorry to hear of your experience during the recharge of your account. Various factors such as card type, IP address of your original purchase, or information mismatch can trigger additional verification process. This is to protect our customers from any unauthorized charges on their account. We apologize for the inconvenience caused by our additional verification process but that does not reflect on support team's ability to provide assistance. PayPal is accepted via the 1SimFund which in turn can be used to recharge your account after all required documents are uploaded. We do hope that after taking this into consideration that we are able to earn an updated rating. Thank you again for the feedback and safe travels, OneSimCard

About OneSimCard

OneSimCard (onesimcard.com) has 580 customer reviews on Five Star Index, with an average rating of 4.0 out of 5.

Also known as: onesimcard.com
Website: onesimcard.com
Category: Internet & Software
Listed on Five Star Index: 2026