Built by one person, for his own therapy first.

Nenrin was made by Blair Williams, a software founder who has spent twenty years building tools for people who run membership businesses (he founded Caseproof, the company behind MemberPress). It started as a personal project: he wanted a way to tell his own story properly, at length, in his own words, and to bring the parts he chose into his sessions with his therapist, so the hour could go to the work rather than the backstory.

Nothing on the market did that. Journaling apps gave him a page and a prompt. AI companions wanted to analyze him. Nothing produced a record a therapist could read, on the person's terms, without the software putting its own reading on top. So he built it, used it, and showed it to the people around him.

The rules it was built around

• The person's words are the product. The interface is a quiet room around them.
• Kiko asks and records. It never advises, diagnoses, interprets, or rates, and the design never implies otherwise.
• Every filing is visible and reversible.
• Nothing feels like it is judging, scoring, or hurrying anyone.
• The record shows a life with a future, never a to-do list. No streaks, no nags.

The name

Nenrin (年輪) is Japanese for tree rings: one ring for each year of a tree's life, read from the center out. Figuratively, it means the accumulated experience of a life. The mark is a set of rings brushed in ink, a little off-center the way real rings are, because a trunk grows wider on its sunny side. Say it nen-rin, two even syllables.

Where it stands

Nenrin is invite-only while a small group uses it alongside their therapists and tells us what is wrong with it. Planned pricing at launch is on the pricing page. If you would like an invitation when it opens, leave your email below.

Nenrin is not therapy, and this site is not advice about your care. If you are in crisis, call or text 988 in the US. Questions go to hello@nenrin.ai.