DaylogueDaylogue vs Harbour
Harbour makes one clear promise: a local AI that runs on your Mac, with your journal staying on your Mac and no account required. That is a real, principled choice. It is also a different product for a different person than Daylogue.
Harbour is best for
Mac users who want everything—journal, memory, and AI—running locally on one machine, with no account and nothing in the cloud.
Daylogue is best for
People who want a cross-platform pattern journal that reads their entries over time, detects emotional patterns, and stays encrypted—on every device, not just a Mac.
Feature comparison
One runs locally on a Mac. One reads your patterns across every device.
| Feature |  Daylogue | HHarbour |
|---|---|---|
| AI runs locally on device | No - cloud AI (Claude via AWS) for deeper synthesis | Yes - local model runs on your Mac |
| No account required | No - account-based for sync across devices | Yes - no sign-up, nothing in the cloud |
| Entries encrypted at rest | Yes - client-encrypted vault, keys never leave device | Yes - stays in a local file on your Mac |
| Cross-platform (iPhone, web, more) | Yes - iOS and web, with sync | No - macOS only |
| Cross-device sync | Yes - your history follows you | No - single Mac only |
| Pattern detection over time | Yes - reads past entries, surfaces emotional patterns | Local chat, limited longitudinal analysis |
| Frontier-model AI quality | Yes - Claude-class reasoning for recaps and themes | Local models only - smaller, faster, less capable |
| Voice journaling | Yes - multi-language voice input | No |
| Guided prompts & check-ins | Yes - questions, mood check-ins, daily prompts | Local AI chat |
| Works with no internet | Partial - capture offline, AI needs a connection | Yes - fully offline by design |
| Hardware requirements | Runs on any modern phone, tablet, or computer | Apple Silicon Mac with 16GB+ RAM |
| Pricing | Free tier plus subscription | One-time purchase |
Where Harbour excels
For Mac users who want everything to stay on one machine.
Where Daylogue is stronger
For people who want patterns across their whole life, not just one Mac.
Works on every device
Harbour is a single Mac app that needs Apple Silicon and 16GB of RAM. Daylogue runs on your phone, the web, and more—so you can check in wherever you are, not only at your desk.
Pattern detection over time
Daylogue reads the emotional patterns running through your past entries and surfaces them in weekly, monthly, and yearly recaps. A local chat app can answer in the moment; Daylogue tracks how you change.
Frontier-model quality
Daylogue uses Claude-class models for cross-entry synthesis—the kind of longitudinal reading that small on-device models cannot match yet. The insight depth is the whole point.
Cross-device sync
Write on your phone in the morning, review patterns on the web at night. Your history stays in one place. Harbour keeps everything on one Mac.
Voice and guided capture
Talk through your day, or answer a gentle prompt. Daylogue lowers the barrier for people who freeze at a blank page—no writing skill required.
Encrypted, not exposed
Entries are client-encrypted and the keys never leave your device, so even full database access cannot read them. AI processing is transient and never persisted in plaintext.
Privacy philosophy comparison
Harbour and Daylogue share a core belief: your private thoughts should stay private. They reach it from opposite directions.
Where they align
Harbour approach
Local-only. The model and your journal live on one Mac and never touch a server. Maximum data minimization, bounded to a single Apple Silicon machine.
Daylogue approach
End-to-end encrypted across devices. Keys never leave your device, so even full database access cannot read your entries. AI features process content transiently and never persist it in plaintext.
If you want your writing to never leave one Mac, Harbour is the purist, local-only choice. If you want strong encryption plus pattern insight that follows you across devices and over time, Daylogue is built for that—and we think saying so plainly is fair.
Common questions
Does Harbour work on iPhone or Windows?
No. Harbour is a macOS-only app and requires an Apple Silicon Mac with enough memory to run a local model. If you want to journal on your phone, on the web, or on a Windows machine, Harbour is not built for that. Daylogue runs across devices and keeps your history in sync.
Which is more private?
Both take privacy seriously, in different ways. Harbour keeps everything on your Mac and never sends your writing anywhere. Daylogue encrypts your entries on-device with keys that never reach our servers, so even full database access cannot read them—but AI features briefly process content in the cloud (via AWS Bedrock, which does not store it or train on it). If you never want your writing decrypted off your device, Harbour is the more restrictive choice. If you want strong encryption plus deeper, cross-device insight, Daylogue is built for that.
Does Daylogue run its AI locally on my Mac?
Not today. Daylogue uses cloud models (Claude via AWS Bedrock) because they read patterns across months of entries far better than a local model can right now. Your entries are encrypted at rest, the AI request carries no name or email, and content is never retained or used for training.
Can I use Daylogue on more than one device?
Yes. Daylogue works on iOS and the web with cross-device sync, so your check-ins and patterns travel with you. Harbour is a single-Mac experience by design.
Which has better long-term insight?
Daylogue. It is a pattern journal built to read your past entries and detect the emotional patterns running through them, then surface those patterns in recaps over weeks, months, and years. Harbour offers local AI chat, but longitudinal pattern detection is exactly what Daylogue is designed for.
Is Harbour a subscription?
No—Harbour is a one-time purchase. Daylogue has a free tier and a subscription for premium features. Different models: pay once for a local Mac app, or subscribe for an evolving cross-platform pattern journal.