Plume
A journal app without AI.
Or with AI you control.
Some people want a journal app without AI. Others want one that writes back. Both are fair. What matters is where the model runs and who can read your words. This guide explains what an AI journal actually does, the three ways it can run, and how to choose.
What people mean by an AI journal
An AI journal app is a journal that runs a language model over what you write. The feature list varies, but it usually comes down to three things.
It writes back
You finish an entry. The app answers with a reflection or a follow-up question. This is the feature people mean when they search for an AI journal that writes back.
It summarizes
It condenses a week or a month into a few lines, so you can see where your time and attention went.
It finds themes
It notices that sleep, work, or one relationship keeps coming up, and shows you when.
None of this is magic. A model reads your words and produces more words. The useful question is not whether an app has AI. It is where the model runs, and who can see the text on the way.
Why some people want a journal app without AI
The search for a journal app without AI is real, and the reasons are sensible.
- The words are the most private thing you own. A journal holds what you would not say out loud. Sending it to a server, even an encrypted one, is a trade some people will not make.
- Writing is the thinking. The value of a journal is the slow act of finding your own words. A voice that answers every entry can crowd that out.
- Dreams and raw moments. People looking for a dream journal app without AI often want a blank page and nothing else. Dreams are half-formed. They do not need interpretation on the spot.
And why others want AI that writes back
The other camp is just as reasonable. A blank page can be hard. A good follow-up question gets you past the first sentence. A summary of the last three months can show a pattern you were too close to see. For people who already paste entries into a chatbot, an app that does it in place is simply more convenient. We wrote about that habit in how to use ChatGPT with a private journal.
So the honest answer is not for or against. It is: AI should be a partner you invite in, not a creator that speaks first. And you should know exactly where it runs.
Where your words go: three ways AI can run
Every AI journal app uses one of these setups, or a mix. Ask which one before you write anything personal.
| Setup | Where your entry goes | Who can read it | Works offline |
|---|---|---|---|
| Cloud AI run by the app | The app's servers, then often a model provider | Depends on the app's policies and its provider's | No |
| Your own API key | The provider you chose, under your account | That provider, under its terms with you | No |
| On-device or local model | Nowhere. It stays on your machine | You | Yes |
The first setup is the most common, because it is the easiest to sell as a subscription. It is not wrong. It is a different trust decision. Our guide to journaling apps that work with local AI goes deeper.
How Plume handles AI
Plume is a journal app for iPhone, iPad and Mac. It is published by the people writing this article, so weigh our description accordingly. Here is how it is built.
Off by default
A new install has no AI switched on. You can journal for years and no model ever reads an entry.
On-device Apple Intelligence
Where Apple's on-device model is available, Plume can analyze life themes across your entries and write calendar summaries. Nothing leaves the device, and no key is needed.
Local models you run
Plume detects Ollama, LM Studio and llama.cpp and can set one up for you. The model runs on your own machine.
Bring your own key
You can connect OpenAI, Claude, Gemini, Grok, Mistral or any OpenAI-compatible endpoint. Be clear on the trade: the text you send goes to that provider, under your account and their terms.
There is no Plume AI server. We do not sit between you and the model, and we do not make money on AI usage. The AI reads what you wrote and reflects on it. It is not there to write your journal for you.
Everything else stays the same with AI off: no account, no telemetry, no ads, a Face ID or passcode lock, and export to plain text or JSON at any time. How Plume's privacy works covers the details, and this walkthrough shows a local model reading a journal end to end.
A note on AI journaling and mental health
Many people search for an AI journaling app for mental health. Writing things down can help you name a feeling, notice a pattern, or see that a bad week was one week. That is worth a lot. The research on journaling for anxiety is promising and more nuanced than most headlines.
But an app that writes back is not a therapist. It cannot assess risk, and it should not be the only place you bring something heavy. If you are struggling, talk to someone qualified. If you are in danger, contact local emergency services or a crisis line.
Five questions to ask any AI journal app
- Is AI on by default, or do I choose to turn it on?
- When it runs, does my entry leave the device? To whose server?
- Can I use an on-device or local model instead?
- If I use a cloud model, whose account and terms apply?
- Can I export everything and leave, with or without a subscription?
An app that answers all five plainly has thought about the problem. That is a better signal than any list of AI features.
Frequently asked questions
Is there a journal app without AI?
Yes. Many journal apps keep AI out entirely. Plume ships with AI turned off. You can write for years without it ever reading an entry. If you later want reflections, you choose where they run: on your device, on a local model, or with your own provider key.
What is an AI journal?
An AI journal is a journal app that uses a language model on your entries. Usually that means one of three things: it writes back with a reflection or a follow-up question, it summarizes days and weeks, or it spots recurring themes. The model runs somewhere, and where it runs decides who can read what you wrote.
Is there an AI journal app that writes back?
Several apps do this, including Day One on its Gold plan. Before you pick one, check whether your entries are sent to a cloud model and under whose account. In Plume, reflections can run on-device with Apple Intelligence where available, on a local model you run yourself, or through your own API key. With your own key, the text goes to that provider under your account.
Can an AI journaling app help with mental health?
Journaling can help some people notice patterns and put feelings into words. An AI reflection can add a useful question. But an AI journal app is not therapy, not a diagnosis, and not a crisis service. If you are struggling, talk to a professional. If you are in danger, contact local emergency services or a crisis line.
Does Plume send my journal to an AI?
Not by default. AI is off until you turn it on. Plume has no AI server of its own. Apple Intelligence features run on your device. A local model runs on your own machine. Only if you add your own key for a cloud provider are entries sent, and then they go to that provider under your account.
Your journal.
Your call on AI.
AI off by default. On-device when you want it. 21 writing days free, then read-only. Never locked out of your entries.