Cypher Review 2026 - Is Cypher's eSIM reliable?
At a glance
Reviews & ratings
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Pros & cons
👍 What we like
- ✓Coverage announced in over 180 countries.
- ✓Local, regional, and global plans.
- ✓Payment accepted in several cryptocurrencies.
- ✓Purchase without account, email address, phone number, or identity verification.
- ✓QR code generated after payment confirmation, without a dedicated mobile app.
- ✓Documented compatibility with several recent ranges of iPhone, Google Pixel, and Samsung Galaxy.
👎 What we like less
- ✗Payment limited to cryptocurrencies.
- ✗No dedicated mobile app.
- ✗Data-only plans do not include calls or SMS.
- ✗Coverage and speeds depend on local partner mobile networks and are provided as best possible.
- ✗Tethering is not confirmed for all plans.
What is Cypher?
What is Cypher eSIM?
Cypher eSIM is a provider of prepaid eSIM plans to access mobile internet in over 180 countries. Purchases are made on the website or via a Telegram bot, and the QR code is displayed after payment confirmation in cryptocurrency. The offers include local, regional, and global plans. Official information consulted confirms 4G and 5G networks depending on the destination, but calls and SMS are not confirmed for standard plans. Installation is done via the cellular settings of a compatible eSIM phone. A top-up can be made on the same profile using its ICCID when this option is available.
Plans overview
Destinations covered by Cypher
Coverage broken down by region. Tap a region to see its countries.
Our verdict
Cypher eSIM offers prepaid eSIM plans in over 180 countries, with payment in cryptocurrencies and activation via QR code. The service works without an account, email address, or KYC procedure, targeting travelers looking for a mobile data solution without a dedicated app.
Popular alternatives
Frequently asked questions
No, Cypher is not a scam: it is a reliable, well-known eSIM with a 3.5/5 rating in our test, coverage across 180 destinations and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
Cypher covers more than 180 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: Payment limited to cryptocurrencies, No dedicated mobile app, Data-only plans do not include calls or SMS, Coverage and speeds depend on local partner mobile networks and are provided as best possible and Tethering is not confirmed for all plans.
It depends on your destination and budget: Cypher scores 3.5/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
Choose a regional plan when the visited countries belong to the same zone, or a global plan for a route covering multiple continents. Check the destinations shown in the plan selector before purchase.
Tethering availability depends on the chosen plan. Check conditions displayed before purchase.
The official FAQ states the QR code is displayed within 60 seconds following transaction confirmation in cryptocurrency. The validity start conditions must be checked on the chosen plan.
Yes. Open the eSIM page using its ICCID on the Cypher eSIM site, then use the top-up button to add data to the same profile when a top-up is available.
Data plans are intended for mobile internet access. The official source consulted does not confirm inclusion of calls and SMS in standard plans.
Purchases are made on the website or via the Telegram bot. No account, email address, phone number, or identity document is required according to the official FAQ.
Cypher eSIM accepts notably USDT, Bitcoin, Ethereum, Solana, USDC, DAI, Monero, and TON. The FAQ also specifies several networks available for USDT.
Official compatibility mentions notably iPhone XS and later models, Google Pixel from Pixel 3, and Samsung Galaxy from S20, with variations depending on the region.
What to do if Cypher doesn't work?
Check that the phone supports eSIM, is not locked by an operator, and has an Internet connection during installation. If the code has already been used, contact support via Telegram.
Select Cypher eSIM for mobile data and activate data roaming if needed. Then check the network selection and restart the phone.
Wait for transaction confirmation on the blockchain and check the order page. The official FAQ states code generation within 60 seconds after confirmation.
Open the eSIM page with its ICCID and use the top-up button when this option is available for the plan.