Talk through your thoughts, capture your days, revisit old conversations, and discover patterns across your personal history.
What's on your mind today?
Felt good about the progress today. Had a productive morning and a clear conversation. Noticed I'm more at ease lately.
Your conversations don't disappear when the chat ends. Merrin can bring useful context back when it matters.
I'm still not sure whether I should launch next week.
You've had this same hesitation before your last two launches. Both times, most of the concern was about whether the product felt finished enough.
What was that onboarding idea I mentioned a few weeks ago?
You wanted people to start by talking to Merrin instead of going through a long setup process.
Merrin can retain useful context from conversations — projects, preferences, people, goals, and recurring topics — so you don't have to repeat yourself.
Find that idea you mentioned three weeks ago, even if you don't remember exactly what you said.
Meaningful conversations can become readable journal entries, turning what you naturally talk about into a personal history you can return to.
Merrin can surface recurring themes or changes across previous entries and conversations. You can always open the source material behind an insight.
Speak naturally or type whatever is on your mind.
Useful context can become part of your personal Merrin history.
Merrin can bring back relevant thoughts, conversations, and experiences when they matter.
Over time, Merrin can help surface recurring patterns across what you have shared.
Memory should be useful, never invasive. You decide what Merrin keeps, and you can change your mind at any time.
Merrin is designed to keep your private conversations and memories on your device, so your thoughts don't have to be sent to a cloud AI service to be useful.
Core AI functionality is designed to run directly on supported devices.
After the required models are installed, core functionality continues without an internet connection.
View, manage, export, and delete your stored personal data.
Merrin is not funded by selling your personal conversations for advertising.
Some features use the internet when needed — for example downloading AI models, processing purchases, checking configuration, updates, optional diagnostics, or optional online services. These are described in the Privacy Policy.
The details behind the experience, explained in plain language.
Supported language models run directly on the user's device.
Merrin can find related journal entries and memories by meaning, not only exact words.
Supported speech recognition and voice generation can run on-device.
Conversation, journaling, search, memory, and related functionality are designed to continue working after required models are installed.
Merrin can download and manage appropriate local models.
A private place to talk, journal, remember, and understand your patterns. Core local use stays useful for free. Pro adds deeper memory and reflection as your history grows.
A private place to think, talk, and keep a journal.
Unlock deeper memory, journaling, and personal understanding.
Pay once. Keep Pro forever.
Free gives you a private place to think.
Pro gives Merrin the ability to understand your history: remembering useful context, finding related thoughts, turning conversations into journal entries, and surfacing patterns over time.
Talk about your day, your ideas, and the things that matter to you. Merrin remembers what you choose to keep, and those thoughts stay on your device.
Available on supported iOS and Android devices.