For your eyes only
A message is locked on your phone and opens on the recipient's. What our servers see along the way is scrambled.
Coming soon · a secure messenger from FinlandOnly for
you.
And for whoever you are writing to. Nobody else. The encryption keys are on your two phones only — we do not have them, so we could not read your messages even if we wanted to.
Per year
€18.99
The first year is in the store price. Renewal opens before the first year ends: on iPhone as an Apple subscription, on Android at sulle.fi. No monthly fee.
- No ads
- No data selling
- All updates
- Support from Finland
Features
Everything you need. Nothing you do not.
Familiar and simple to use — like a text message, but locked.
Encrypted calls
Voice and video calls nobody outside can listen in on. Group calls are planned.
Groups
Family, the hobby club, the housing co-op board. The same locks as a one-to-one conversation.
No ads, no noise
No banners, no pop-ups, no "you might also like". Just messages from people you care about.
Photos, video and voice
Share the pictures and the voice notes. They are encrypted like the text. Photos go in high quality, videos as the original.
iPhone and Android
Both work. It does not matter what your friends carry.
Why €18.99
€18.99. Because you are not the product.
When an app is free, you pay with something else — your data, your attention, your privacy. Sulle costs €18.99 a year. You are a customer, not inventory.
Sulle is made by Puida Oy, a Finnish company. We pay our taxes in Finland, our servers are in Finland, and we hold only what delivery needs — who is in a conversation, never what is said or shared.
Elsewhere
The rest of it.
Two other addresses carry the parts that do not belong on a product page.