TooSim Review 2026 - Is TooSim's eSIM reliable?
At a glance
Reviews & ratings
Data plans are cheaper than in other eSIM apps. Reliable, no issues encountered so far.
I liked it. The travel eSIMs are super cheap. The app is simple, not overloaded, nice to look at. I planned a trip to Frankfurt in September, bought their prepaid eSIM (1GB for $3.99) and received a code for the next purchase. Quick activation upon arrival. I recommend it.
Pros & cons
👍 What we like
- ✓Instant and ultra-simple activation thanks to the QR code, perfect for travelers in a hurry.
- ✓Highly competitive pricing: plans from $3.99 per GB, significantly cheaper than traditional roaming.
- ✓Wide range of regional and global plans suited for different travel needs and budgets.
- ✓Clean and intuitive app without unnecessary feature overload.
- ✓Transparent refund policy if the eSIM has not been used.
- ✓Global coverage of 200+ countries with a wide variety of compatible devices (iPhone 11+, Samsung Galaxy, Google Pixel, etc.).
👎 What we like less
- ✗Data-only: no direct calls or SMS, requires use of apps like WhatsApp or FaceTime.
- ✗Limited number of visible user reviews on platforms (only 4 App Store reviews as of April 2026).
- ✗Support limited to email and WhatsApp channels only, no live chat or direct phone support.
- ✗Activation delay starts only upon arrival; no usage during travel to destination.
- ✗Limited details on actual network speeds and throughput per country on the official site.
What is TooSim?
What is TooSim?
TooSim is a prepaid eSIM provider specializing in connectivity solutions for travelers. An eSIM (embedded SIM) is a digital chip built into your phone that allows you to connect to mobile networks without needing a physical SIM card. Unlike traditional SIMs, the eSIM is programmed digitally and offers the flexibility to change plans or regions in just a few clicks.
TooSim offers over 250 different plans covering 200+ countries, with regional options (Europe, Asia, North America, Middle East, Caribbean, South America) and a global plan for multi-destination travelers. Data varies from 1GB to 150GB, and plans remain valid from 7 to 180 days depending on the chosen plan.
Activation is instant: after online purchase, you receive a QR code that you can scan directly from your phone to install the eSIM. Unlike physical SIMs, there is no delivery to wait for or installation issues. The eSIM only activates when you connect to a supported network in your destination.
Plans overview
Countries covered by TooSim
Coverage broken down by region. Tap a region to see its countries.
Our verdict
TooSim offers prepaid eSIM plans for over 200 global destinations with regional and global plans. Instantly activate your eSIM via QR code and reduce your roaming fees by up to 80% with data ranging from 1GB to 150GB.
Popular alternatives
Frequently asked questions
No, TooSim is not a scam: it is a reliable, well-known eSIM with a 4.1/5 rating in our test and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
TooSim covers many destinations. Availability and network quality depend on the destination and the local partner operator: check that your travel country is covered before buying.
The main downsides we found in our test: Data-only: no direct calls or SMS, requires use of apps like WhatsApp or FaceTime, Limited number of visible user reviews on platforms (only 4 App Store reviews as of April 2026), Support limited to email and WhatsApp channels only, no live chat or direct phone support, Activation delay starts only upon arrival; no usage during travel to destination and Limited details on actual network speeds and throughput per country on the official site.
It depends on your destination and budget: TooSim scores 4.1/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
For a city trip or a week in Europe, choose the regional Europe plan with 5 to 10 GB of data depending on your usage (GPS, social networks, messaging). Plans of 7 to 14 days are best suited and start at $3.99 per GB. TooSim also offers 30-day plans if you stay longer.
Yes, absolutely! If your phone supports dual-SIM (physical + eSIM), you can keep your regular SIM active for calls/SMS and use the TooSim eSIM for data only. This setup is ideal to stay reachable on your usual number.
TooSim works on most recent eSIM-compatible smartphones: iPhone 11 and newer, Samsung Galaxy S21-S25, Google Pixel 6-7, OnePlus 9 Pro, Xiaomi Mi 11, Oppo Find X3 Pro, Sony Xperia 1 III, and others. Check the full list at toosim.com or your phone’s settings.
Your data plan only starts counting when the eSIM connects to a supported network in your destination country. You can install the eSIM before traveling without worry: data remains intact until your arrival.
No, TooSim plans are data only. However, you can use free apps like WhatsApp, FaceTime, Viber, or Skype to call and message. For calls to landlines, Viber and Skype offer very affordable rates.
Yes, TooSim guarantees a full refund if the eSIM has not been used or if the issue cannot be resolved by support. Contact [email protected] or WhatsApp promptly with your order number to initiate the refund.
Yes, tethering is possible with TooSim on most devices. You can share your eSIM connection with a computer or tablet. Note: this consumes data faster, so adjust your plan accordingly.
If you choose a regional plan (Europe, Asia, Middle East, etc.), you can use the same data across all countries in that region without extra charges. Otherwise, opt for the global plan that works everywhere. No need to buy an eSIM for each destination!