Blog

Latest news, updates and insights from the Crypton team.

Featured

Stay longer. Pay less.

Crypton Mobile, BYOD, long-term numbers, and Blue Relay get cheaper every time you renew. The first charge is the price you see. It steps down from there, and it stops at a floor.

Metadata, sealed with your key.

Conversation times, message status, attachment names, activity details, and saved chat times are sealed with your encryption key. Signed in, the screens look the same. The readable copies are gone.
Product
Nov 01, 2026
2 min read

Introducing Crypton Line

Crypton Line is an eSIM with a real phone number. Pick the country on the page, pay once, and a new purchase is a new number.
Product
Oct 27, 2026
3 min min read

Physical SIM vs VoIP: Which Passes Verification?

Why WhatsApp, Telegram and banks block VoIP numbers, what a non-VoIP number really is, and when a real SIM number is worth it for verification and 2FA.
Features
Oct 14, 2026
8 min read

Stay longer. Pay less.

Crypton Mobile, BYOD, long-term numbers, and Blue Relay get cheaper every time you renew. The first charge is the price you see. It steps down from there, and it stops at a floor.
Product
Oct 10, 2026
3 min min read

Introducing Crypton AI: private Chat and API in the EU

Crypton Chat and an OpenAI-compatible API are in beta. EU inference, default zero retention, encrypted history, billed from the Crypton credits you already have.
Product
Sep 21, 2026
4 min min read

Introducing Blue Relay: Your Own Blue-Bubble iMessage Line

iMessage is where a lot of real conversations happen: friends, family, group chats, the client who will not open anything else. Green SMS is fine for codes. For talking to people, blue bubbles just feel better. Blue Relay is Crypton's way of giving you a dedicated iMessage number without buying another iPhone or linking it to your personal Apple ID. We host the phone in Europe. You get the line in your Crypton account, and you can use it from the dashboard or through the API if you want to automate things (including your own AI agents).
Features
Jul 22, 2026
3 min read