Cynsio
About Cynsio

Built by someone who rents out property

Cynsio did not come out of a product meeting. It came from noticing how much of renting out property is really just admin.

Where Cynsio comes from

Cynsio was built from the practice of renting out and managing property, not from a product meeting. Manage property and build software both, and you quickly see how much of renting out is retyping.

Work a computer does better and faster than a person, and that almost everywhere still happens by hand. Cynsio does that work. Not to replace the landlord, but to give back the evenings that go into a spreadsheet.

Every single month:

  • Matching rent against bank statements
  • Working out indexations and sending them correctly
  • Assembling owner statements
Where the name comes from

Cijns is the old Flemish word for the recurring due paid on land and property. Whoever collected it kept a cijnsboek: who paid, when, how much.

Cynsio is that ledger, minus the handwriting.

What we are aiming at

Less administrative hassle, more efficiency

Concretely: payments that reconcile themselves, indexations calculated correctly and sent with a proper letter, and an owner statement that adds up without you assembling it.

See what Cynsio does
What Cynsio runs on

No black box

You are giving a rental platform sight of your rent income. You should know who stands behind it and what it runs on, without having to ask.

Operated by
Axenimo BV
Company number BE 1031.883.129, registered in Belgium.
Bank connection
PSD2, read-only
Cynsio sees your incoming payments and can never move money.
Hosting
Inside the European Union
Your property, tenant and payment data is hosted and processed in the EU.
Traceability
Full audit trail
Every view and action is logged, with roles per user.

Want to shape it?

Cynsio is in early access. Whoever joins now helps decide what gets finished first, and what we leave alone.