Rewind is total recall for Mac. It runs in the background and records everything — your screen, audio from meetings, and anything you say near your device. Then you search it later. The philosophy is simple: record everything, search it later. You never have to decide what is important, because everything is there.
Linubra starts from a different belief. It assumes memory is not about recording everything, but about capturing what matters and understanding its significance. You choose what to record — a meeting, a conversation, a thought. Linubra transcribes it, extracts the meaning, and builds a graph. It is intentional, not exhaustive.
Both claim to be “second brains.” They work on opposite principles.
Feature comparison
| Feature | Linubra | Rewind |
|---|---|---|
| Capture model | Active and intentional — you decide what to record | Passive and continuous — records screen, audio, meetings automatically |
| Privacy architecture | EU servers; processed only for your graph; does not train models | On-device processing; recordings stay local on your Mac |
| Search method | Semantic (pgvector) — finds meaning and connections | AI search over recorded content — keyword and semantic |
| Hardware required | Any device with voice capture | Mac only (processor-intensive local recording) |
| Maintenance | None — captures create the graph automatically | Requires significant disk space and compute resources |
| Data output | Knowledge graph with entities, actions, decisions, relationships | Raw recordings searchable via AI |
| Consent with others | You control what you record; no passive capture of calls | Records all calls and audio near device — two-way consent issues |
| Platform support | Voice + text, multi-platform (web, iOS, Android planned) | macOS only |
| Knowledge graph | Built from extracted entities and relationships | No graph — just searchable recordings |
| Price | Early access (pricing TBD) | ~$19/month (Rewind); Limitless pendant ~$99 device + subscription |
What Rewind does better
Total recall without decisions. If you need to find something you saw, heard, or said days or weeks ago, Rewind finds it. You never have to decide what is “important enough” to capture. Everything is already there.
On-device processing. Rewind records and processes locally on your Mac. Nothing leaves your device. That is a genuine privacy advantage — no cloud servers, no data in transit. If you want recordings to stay entirely local, Rewind is the only option.
Screen and call recording. Rewind captures your entire screen, including browser activity, app usage, and all spoken audio. If you need to reference something you read or said word-for-word, it is there.
Mature product. Rewind (and its related product Limitless) have been shipping for years. The feature set is complete and the search works well. Linubra is early access.
What Linubra does better
Zero burden. You capture something important — a conversation, a decision, a problem you are solving. Linubra extracts the meaning and builds your graph. No storage pressure, no disk space anxiety, no maintenance.
Knowledge graph, not raw recordings. Rewind gives you searchable video and audio. Linubra gives you a structured map of who you know, what you have decided, what you are working on, and how it all connects. It is a relationship between ideas, not just searchable content.
Semantic understanding. Linubra does not just search — it reasons. It connects a problem you mentioned in a voice note three weeks ago to a person you met last week, then to an action item that came up today. Rewind searches, but it does not connect.
Consent and ethics. Linubra records only what you explicitly choose to capture. Rewind passively records all calls and ambient audio, which raises real questions about consent with other parties. If consent matters to you, that is a meaningful difference.
Intention over exhaustion. Some people find that recording everything is paralyzing — the data becomes noise. Linubra assumes you are selective. That creates a smaller dataset that actually means something.
Who should use Linubra
- You think in voice and want that thinking automatically organized
- You care about having a map of your knowledge, not just searchable recordings
- You want to know who you know, what you have decided, and what connects them
- You value privacy and consent with the people you talk to
- You prefer active capture over the weight of continuous recording
Who should use Rewind
- You work on a Mac and want total recall of everything you have seen and heard
- You frequently need to reference things you saw days or weeks ago
- You do not want to make decisions about what is important to capture
- You want on-device processing with zero cloud involvement
- You need to search your exact words from meetings or conversations
The choice between these tools is philosophical. Rewind says: record everything and search it. Linubra says: choose what matters and understand it. Neither is wrong. But they ask very different questions about what memory is for.
See also: Best AI second brain apps in 2025 — Linubra, Notion, Obsidian, Mem, and Reflect compared in one place. Or if audio capture is your priority: best voice journaling apps in 2025.