While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Company details

  1. Telecommunications Service Provider
  2. Internet Provider
  3. Internet Service Provider
  4. Mobile Network Operator
  5. Phone and Internet Service
  6. Software Company

Information provided by various external sources

Cellular Connectivity for the Internet of Things


Contact info

  • N La Salle St 1, 60602, Chicago, United States

  • hologram.io

3.8

Great

TrustScore 4 out of 5

12 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 50% of negative reviews

Typically replies within 1 month

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Honest and customer focused partners

Honest and customer focused partners

I am very happy to work with Hologram, after having had another connectivity provider that was both less transparent as well as mostly dismissive of our existence untill we threatened to leave. Whenever we have anything to ask about we get good answers, and more help that our other alternatives were willing to provide. There are many alternatives that are good, but after reviewing our options we felt like this was the one really great option for us.

11 September 2025
Unprompted review
Hologram logo

Reply from Hologram

Thank you for your feedback. We value you as a customer and are appreciative of you detailing your experience!

Rated 5 out of 5 stars

Superb network coverage

I've been using Hologram sims in my GPS tracker for several years and the network connectivity globally has been superb, the billing and web payments system is clear and guarantees there are no hidden or unexpected costs.
Definitely sticking with hologram for future projects.

27 August 2025
Unprompted review
Hologram logo

Reply from Hologram

Thank you for your feedback, Ivor! We are very appreciative to have you as a customer.

Rated 5 out of 5 stars

Easy to use administration pages

Easy to use administration pages, you can see every information about your IoT device you need. Price is affordable. There were absolutely no problems with the service, coverage, etc. in Hungary in the past 6 months.

14 August 2025
Unprompted review
Hologram logo

Reply from Hologram

Thank you so much for being a Hologram customer and for your review! We are glad to hear that you are finding success using our services.

Rated 5 out of 5 stars

"I switched to Hologram from another…

"I switched to Hologram from another well-known provider after experiencing constant lag and disconnections. My customers were tired of hearing excuses about these issues. Since moving to Hologram, I haven’t received a single complaint—everything works perfectly. I especially love their customer support team, and I’ve even built custom features for my clients using Hologram’s API. It’s given me complete peace of mind for my business.

11 August 2025
Unprompted review
Hologram logo

Reply from Hologram

Thank you, Daniel! We appreciate you as a customer and glad to see that you are finding success. Great to hear that you've leveraged our API for custom features.

Rated 5 out of 5 stars

Hologram’s IoT SIMs have provided me…

Hologram’s IoT SIMs have provided me with efficient, effective and economical connectivity.

11 August 2025
Unprompted review
Hologram logo

Reply from Hologram

Thank you, James, for your review! We love to see that you're experience the "three E's" - efficiency, effectiveness and economical. We appreciate your support as a Hologram customer.

Rated 1 out of 5 stars

Unreliable Service – Eliminated from Our Provider List

We had been using Hologram SIM cards for about a month with no issues—until 4 days ago, when SIM cards began disconnecting one after another. All vehicles went offline, even though they were on the move. The dashboard showed them in “Ready” status but with no connectivity.

We contacted sales support via the website, submitted a ticket, but no one responded. Instead, we received automated replies from an AI bot via email, which couldn’t resolve anything. The AI chat on the website also blocked access to any real human agent, which is unacceptable for a mission-critical service.

We can't afford to lose our clients' trust or wait more than 5 days for a fix, so we made the decision to completely stop using Hologram SIM cards.

We are now switching to Emnify, which—while more expensive—offers much better performance, reliability, and full control over our fleet and connected devices. We're currently in a testing phase to choose our long-term provider, and Hologram.io is now permanently eliminated from our list.

We strongly do not recommend Hologram to any serious business.

27 July 2025
Unprompted review
Hologram logo

Reply from Hologram

We are sorry to hear that you had such a poor experience. I have flagged your review with our Customer Support team for follow up. We certainly want to learn more about what happened so we can ensure this situation doesn't happen again. Thank you for providing a review so we are aware.

Rated 1 out of 5 stars

3 years of IOT horror

I’ve been with them 3years and their network is horrible. Constant network outages and they overcharge you for data/sms usage that you don’t even use. You CANT speak to a live person unless your getting new service. They will have your business so unstable. Worst service EVER. Bunch of amateurs in support. Scripted support. Epic Fail. Don’t use them. But it seem All IOT sim companies are the same. Full of Sh&!

28 November 2023
Unprompted review
Rated 1 out of 5 stars

Shameless SPAMMERS

Shameless SPAMMERS
Once you are on their CRM, that's a marriage! I have being trying to enforce my divorce since years now, unsuccessfully.
You have been warned now. Forewarned is forearmed.

8 November 2023
Unprompted review
Rated 2 out of 5 stars

Stop harassing me with spam emails.

Got a spam email from them out of nowhere and I just ignored it. Then I got another spam email only 2 days later:
Hi ***,

I reached out a few days ago to see if you're ready to engage ........

To me that is really pushy so I decided to leave this review.

12 May 2022
Unprompted review
Rated 1 out of 5 stars

We were in the process of becoming a…

We were in the process of becoming a customer and had developer questions about their API. After brief correspondence with our lead developer, they reached out to him and offered him a job. If you want a scumbag partner that will try to poach your key employees, this is the partner for you.

3 September 2021
Unprompted review
Show reviews in all languages. (12 reviews)

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look