FOLIO · 001● ACTIVE

Software for things
that matter —
one product at a time.

A small studio building small, useful software — the kind that quietly helps people in their day, and is still around to help them years from now.

IN CATALOGUE
Vent, Fate · iOS & Android
FOUNDED
2026
FUNDING
Bootstrapped
01 / STUDIO
What we are

Telosum makes software the way a small press makes books — deliberately, one volume at a time, with care for both the craft and the reader.

We don't chase scale. We pick narrow problems worth solving well, and ship one tool for each. The catalogue is intentionally short.

  • i.Privacy as defaultNot a setting. Encryption and local-first storage from the first line of code.
  • ii.One thing per appSmall surface, clear purpose. No dashboards, no kitchen-sink features.
  • iii.Made with carePlain-text exports, open formats, nothing locked in. Software you can keep using.
02 / INDEX
The catalogue
TS-001
Vent
A private journal that listens. Voice, photo, and text moments — turned, gently, into the story of a life.
→
TS-002
Fate
A private journal that listens. Note your day, and Fate shows you how the cards and the sky were holding it.
→
TS-003
— vacant —
03 / CONTACT
Reach us

Press, partnerships, hiring (eventually), or just hello — drop us a note.

For Vent-specific help, the Vent support form goes to the same place.

A human reads every message.