Zero-Friction Knowledge Management

An automatic second brain that builds itself as you write.

Q: What is an automatic second brain app?

An automatic second brain is a digital note-taking system that autonomously analyzes your writing to connect related people, places, dates, and topics. Unlike traditional tools requiring manual wiki links, Onuri builds these connections automatically on your iPhone.

Q: How does Onuri differ from manually linked second-brain workflows?

Some second-brain workflows are built around manually created wiki-style links, tags, or folder structures. Onuri takes a different approach by recognizing useful entities as you type and creating connections automatically, without requiring manual linking setup.

Many second-brain workflows rely on manual links, tags or folder structures. Onuri takes a lighter approach by recognising useful context automatically as you type.

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Complete guide

From note-taking app to second brain

Go deeper on second-brain design, retrieval and the ways automatic connections can reduce manual knowledge-management upkeep. Read the complete guide →

Why manual second brains can become hard to maintain

Some knowledge-management systems become difficult to maintain when every useful connection depends on manual upkeep. Remembering to format `[[note links]]`, decide which folder a stray thought belongs in, or maintain tag taxonomies creates friction that stops you from actually writing.

How Onuri automates your thinking

Automatic Entity Recognition: Onuri scans your natural writing on-device to instantly identify people, places, dates, and topics.

Zero Setup Required: No configuration files, plugin ecosystems, or manual backlinking needed. Just open the app and type.

Connection-Based Search: Retrieve thoughts instantly by following natural relational paths instead of digging through directory trees.

Private & Secure: Your second brain stays yours. Notes sync through your personal iCloud with zero third-party tracking or cloud server analytics.

Frequently Asked Questions

What is an automatic second brain app?

An automatic second brain is a digital system that automatically recognises useful context in your text and helps related notes surface. Onuri performs this locally on your iPhone so your notes organize themselves.

How does Onuri differ from manually linked second-brain workflows?

Some connected-note workflows rely on manually created wiki-style links or organizational structures. Onuri reduces that maintenance by detecting useful connections automatically as you write.

Store the note once. Let useful relationships appear automatically.

Capture without building a knowledge graph by hand

Traditional second-brain workflows can be powerful, but many depend on manual links, tags or regular filing. Onuri takes a lighter approach: write a normal note and let on-device recognition identify useful people, places, dates and ideas as part of the text you already wrote.

Rediscover through search and connections

When you return later, full-text search helps when you remember the wording. Connections help when you remember the surrounding context. A person can lead to a place, a place to another note, and a date to the moment you were trying to recover.

A private second brain designed for iPhone

Onuri's core recognition happens on device, the App Store privacy label states that data is not collected, and notes can sync through your personal iCloud account. The goal is not to replace your thinking with automation; it is to reduce the organisational work between writing something and finding it again.