At a glance
Fixed local plans, preferably for 30 days. Any different validity period is shown with the price. A hotspot lets you share your phone’s internet connection with a device such as a laptop.
| Feature | HolySim | Holafly |
|---|---|---|
| Network | Verizon / AT&T · 5G where available | AT&T / T-Mobile · 4G/5G where available |
| 5 GB | €9.99 · 30 days | Not offered as a fixed local plan |
| 10 GB | €13.99 · 30 days | Not offered as a fixed local plan |
| 20 GB | €21.99 · 30 days | Not offered as a fixed local plan |
| 50 GB | €39.99 · 30 days | Not offered as a fixed local plan |
| Hotspot | Allowed on all compared plans. | Product page specifies 1 GB of sharing per day. |
| Validity starts | At first connection at the destination. | At connection at the destination; one day means 24 hours from activation. |
| Top-ups | Extra data through My eSIM. | Conflicting help pages; do not assume renewal on the same profile. |
| Support | Email support in Dutch. | 24/7 chat; help by email and WhatsApp. |
Unlimited data with Holafly
7 days: €25.50 · 15 days: €46.90 · 30 days: €68.90. These are different products from the fixed allowances in the table. Unlimited phone data does not mean unlimited sharing or a guaranteed speed.
All amounts are euro prices displayed by the provider, without a discount code. Promotions are marked. HolySim prices include VAT; possible payment or card fees at other providers have not been checked. A network name or 5G listing does not guarantee reception or speed at your location.
Where Holafly is better
Holafly sells unlimited data by trip length. This can help if you watch a lot of video and find it hard to estimate the gigabytes you will need.
Holafly names AT&T and T-Mobile and offers 24/7 support. The product page specifies a hotspot sharing limit of 1 GB per day.
Where HolySim is better
Our four fixed plans cost less than Holafly’s unlimited 30-day plan. That matters particularly if you also use Wi-Fi and a fixed allowance is enough.
HolySim lists AT&T and Verizon for the compared plans. Verizon is a different listed network partner from Holafly’s; assess that choice for the places you intend to stay.
Which should you choose?
Choose Holafly if…
Choose Holafly if you use a lot of data on your phone and sharing 1 GB per day is enough. Allow for temporary speed restrictions during intensive use.
Choose HolySim if…
Choose HolySim if you want a set budget and 5 to 50 GB. Do not choose solely by a network logo: connections can also drop in remote parts of the United States.
Where these figures come from
We checked the published plans and terms on 16 September 2026. HolySim prices come from our own catalog. Holafly prices come from its official range for the United States. We compare local plans; regional and worldwide alternatives are outside the table’s scope.
HolySim confirmed hotspot support for the compared eSIM Access plans on 16 September 2026.
Unlimited applies to data on your phone. The network operator may temporarily reduce speeds during intensive use; the product page does not state a fixed usage threshold.
The specific top-up help page says you need a new eSIM. A general help page still mentions top-ups. Ask Holafly which process applies to your purchase.
- HolySim · plans for the United States. Consulted on 16 September 2026.
- HolySim · contact and support. Consulted on 16 September 2026.
- Holafly · plans for the United States. Consulted on 16 September 2026.
- Holafly · activation. Consulted on 16 September 2026.
- Holafly · top-ups. Consulted on 16 September 2026.
- Holafly · top-ups. Consulted on 16 September 2026.
This comparison is published by HolySim, which sells eSIMs itself. We use provider information and have not carried out our own speed or reception measurements. We review the comparison monthly. The prices shown are a snapshot; the price at purchase may differ.
About the publisher (Dutch)·Our editorial methodology (Dutch)