Notice how you're doing — before it becomes unmissable.
Yourni — say it like journey.
Yourni asks you briefly each day how you're feeling. On a bad day one tap is enough; on a good day there's something worth talking about. Out of both, a picture of your state builds up over time — and when the picture shifts, you'll see it.
Decline gets normalised.
Less energy, broken sleep, more worry —
a little more each day, so nobody notices until it's already bad.
Improvement is easy to miss.
A good week, the thing that
helped, the person you breathe easier around — it often passes unnoticed.
And those are exactly the ones that matter.
The warning signs are always there. Motivation slipping, sleep breaking up, worry climbing, contact with people thinning out. But they accumulate slowly and are easy to explain away. Most people seek help only once they're already in distress.
You can't see it from the inside. You judge how you are by how you feel right now, and today always looks like normal. It cuts both ways — it's just as easy to overlook a month that has gone better than you expected.
Yourni collects the signal from somewhere else — a short, natural conversation. No forms, and no sense of being examined.
How it works
Three steps, a few minutes a day
Tap the map roughly where you are right now — there's no list to pick from and nothing you have to name. Then you can talk for a couple of minutes, or not. Out of each check-in a picture builds up over time. Mental health difficulty turns small tasks into large ones, so every decision in Yourni is built to need the least effort at the moment you have the least of it.
You record how you feel
A few secondsHave a short conversation
About two minutesA picture builds up
ContinuouslyYourni adapts to you
Yourni isn't an app for a crisis that makes no sense to open otherwise. It reads how you're doing and changes its pace and depth accordingly — from a single tap to a conversation that goes somewhere.
- On a hard day Tap where you are and close it. No compulsory questions, no filling in yesterday, no streak to break. If you do want to talk, the questions get shorter, slower, and leave more room.
- On an ordinary day Most days. Two minutes is enough to keep the picture alive — and it's the quiet weeks that later make a change visible. Without them there's nothing to compare against.
- On a good day Yourni asks what's working — not to get it out of the way before hunting for a problem. What's holding you up, what gave you your energy back, who you were with. Understanding what helps is as useful as understanding what hurts.
Simple on the surface, careful underneath
- The feeling picker A single tap captures the feeling and how strongly you feel it. You can name it in your own words — or not at all.
- Conversation The assistant picks up what you just said and refers to what you both already know.
- Mood trends Nothing to fill in and nothing to rate — Yourni understands how you're doing from the conversation itself.
- Journal A private space to write. Yourni reads your entries but never replies to them — the journal is yours.
- Threads & patterns Yourni notices what returns — in conversations and in the journal. Topics that run across days, and patterns of what repeatedly helps or hurts.
- Memory Yourni keeps the facts it has learned about you, so it doesn't start from zero every time. You can see all of them in Settings and delete any one of them.
How conversation becomes a picture
On the surface you tap and talk for a few minutes. There's nothing to fill in and nothing to rate — the picture is assembled from what you've already said. It isn't a diagnosis and it isn't a test. It's a record of how you've been, kept carefully enough to show change.
A feeling has its place on the map
Yourni has a map of feeling: every feeling lies on it by how pleasant it is and how much energy is in it. Pointing to where yours belongs therefore records both its kind and its strength — no words needed.
The conversation is read for signals
While you talk, Yourni picks up mentions of mood, energy, sleep, thinking, the body and relationships — without asking you about any of them. What holds you up is tracked with the same weight as what pulls you down.
Mentions become information
A passing mention doesn't weigh the same as a repeating pattern — every signal carries a confidence too. Only from that do the trends and scores you see emerge. A reference point, not a verdict.
The comparison is with you, not with a norm
There's no scale you're being measured against and no population you're compared to. What a reading means comes from your own record — how this week sits next to your last month. That's why the picture is worth little in the first days and a lot after a few weeks.
If you say something hard
Sometimes it just comes out — that you can't do this any more, that there's no point, that you're a burden to everyone. You don't have to worry about what happens next. Yourni doesn't go anywhere, doesn't report anything to anyone, and doesn't start treating you as a case.
Yourni stays
It doesn't shut down, doesn't send you away, and doesn't stop talking to you. The last thing anyone needs at that moment is an app acting as though this is beyond it. It stays, and it asks.
Nobody finds out
No one is called, nothing is sent anywhere, and no file about you appears — there's nowhere for one to appear. No alert to the people close to you, no record on our side, no person here who would read it.
It keeps working, just differently
It stops steering the conversation. It asks, plainly and without clinical words, how you're really doing. If you tell it you don't feel safe, it gives you the numbers of people who can help right now. And it notes to come back to it the next day — you won't have to raise it again from the beginning.
A rule decides, not the AI
When this happens isn't up to the model. It's a fixed rule in one place that behaves the same way every time. And because nothing leaves the phone, there is no person on our side who could notice someone is in trouble — the rule is what notices. That is the honest cost of the privacy Yourni promises.
Privacy
Everything you say stays with you
Yourni doesn't know your name and keeps no file on you. Your conversations are never stored anywhere but your phone.
- Your content stays on your phone. Conversations, journal, feelings and trends — they live with you, not on a server.
- Your words go to the AI that writes the reply. Yourni uses OpenAI or Anthropic; you choose which in Settings. They receive your message and a short piece of context, nothing else. Neither of them trains on it.
- What the providers keep — and what we can't control. Both delete requests after about a month. If their automated safety systems flag a conversation, that provider may keep it longer. We can't switch that off — no app built on a large AI provider can.
- Nothing you write reaches us. Your phone talks to the provider directly — we have no server in between. Ours only counts how much of the allowance each install has used.
- Deleting the app deletes your content. Conversations, journal and feelings are gone from your phone — permanently, with no recovery.
- No name, no password. No email, no phone number. We don't know who you are — and have no way to find out.
- No analytics, no tracking. Not in the app, and not on this site.
- No sharing. Yourni has no social features and no export to networks.
Everything that stays with you
Your phone holds everything personal: conversation messages and their summaries, journal entries, selected feelings, derived scores and trends, remembered facts, and the name the assistant calls you.
Yourni needs history to pick up where you left off and to compute trends — but your phone is all it needs for that. No copy of your content exists anywhere else.
What happens to what you write
Your reply is written by OpenAI or Anthropic — you choose which in Settings. They receive your message and only what's needed to continue: what you talked about last time, and how you've been lately. Nothing else about you goes with it.
Neither provider trains on what you send. We keep no copy at any point, because no copy ever reaches us — the request goes from your phone to them without passing through us.
Everything else stays on your phone.
What the providers keep
They do hold your message briefly. Both run automated checks for misuse and delete requests after about a month. And if one of those automated systems flags a conversation, that provider may keep it longer for review.
We can't switch that off, and no app built on a large AI provider can. It's the one part of this we don't control, so we'd rather you heard it from us than found it out.
Your own key doesn't change this. It takes us out of the chain — your phone talks to the provider and the allowance stops applying to you — but the provider still receives your conversations on the same terms, and doesn't hold them for any less time because the key is yours.
One thing runs the other way. With the access built into Yourni, the provider sees our account rather than you, and your conversations sit anonymously among everyone else's. With your own key they're attached to your name and your card. Neither is better across the board — it depends on who you'd rather be invisible to.
Your conversation doesn't come near us
Yourni has no server in the middle. Your phone talks to OpenAI or Anthropic directly. Your messages don't pass through anything of ours — there is nothing of ours in the path to pass through.
Our server does one job: it keeps count of how much of the free allowance each install has used. It never sees a conversation, and it isn't built so that it could. That's not a policy we could quietly change one day; it's the shape of the thing.
Why we count at all: we pay for the AI on your behalf, so we need to know how much. A random number and one monthly total. No day-by-day history exists, so we don't know when you checked in or about what.
Gone means gone
Deleting the app wipes its entire database on your phone — conversations, journal, feelings, trends. There is no backup and no recovery.
The only thing left is how much of your allowance you've used — a number, nothing about you.
You can also delete piece by piece — Settings → Memory lets you remove any individual remembered fact.
We don't know who you are
Signing up is an obstacle — and a link to your identity. Both are wrong here. So Yourni knows nothing about you: no name, no email, no password.
We keep only a random number and how much you've used. What we don't have, we can't lose, sell, or hand over.
No measuring, no metrics
There's no analytics or advertising service in the app, and this site sets no cookies. We don't know which days you open the app, how long you stay, or what you tap.
Yourni improves from what you choose to tell us — not from quietly collected data.
Nothing goes out
Yourni has no social features, no sharing, and no export to networks. Nothing you put into it has a way out.
A place for thinking out loud only works when it's genuinely private.
The app
What Yourni costs
A mental health tracking app that stops working the moment money is tight makes no sense.
Yourni is still in development
It isn't on the public App Store yet. Want to be among the first to try it?
The basics, free
The daily check-in, a short conversation, the journal and the trends — with a monthly limit that covers ordinary use.
Your own key
If you have your own OpenAI or Anthropic key, enter it and the allowance stops applying to you. The key stays on your phone, and your conversations go directly between you and the provider — we're not involved. You pay them directly.
Top up Planned
When the allowance isn't enough, buy more usage in the app. No subscription and no auto-renewal — you pay for what you use, and only when you want to. The price covers the AI costs; Yourni doesn't make money on it.
A provided code Planned
A code with the usage already paid for — from a therapist, an employer's programme, or as a gift. A therapist sees only rough progress on a large-enough batch — not started, about half, most, done — no exact number and not in real time. Not which client used one, not when, nor whether they still use the app. Being able to watch a specific client would cross a boundary in the therapeutic relationship, so Yourni simply doesn't have that ability.
Safety
When you need help
Yourni is a companion for ordinary days — it isn't therapy, a medical device, or a crisis service. When it's more than an app can hold, you need a person. These numbers work right now, around the clock and free of charge:
112
Emergency line (EU-wide) — immediate help when life or health is at risk.
116 123
Psychological first aid line (Czech Republic) — for adults in distress.
116 111
Safety Line (Czech Republic) — for children and young people.
Outside the Czech Republic, contact your local crisis line.
Yourni is not therapy or a medical device. It does not diagnose, recommend treatment, or replace a psychologist or psychiatrist. What it shows you is a record of your own reports over time — if something in it worries you, discuss it with a professional.
AI can make mistakes. Yourni's replies are generated by AI, which can be inaccurate or misread something. Treat what it says as support, not as professional advice.
Not for minors. Tracking your own mental health with the help of AI is not appropriate for users under 18 without professional oversight. If you're under 18 and need someone now, the Safety Line (116 111) is there for you.
Questions
Before you start
Do I need my own AI key?
No. Yourni comes with AI access already set up — install it and start. There's nothing to create and nothing to copy across.
If you'd rather have nobody between you and the AI provider, you can enter your own OpenAI or Anthropic key. It stays on your phone, and your conversations then go direct — bypassing us entirely.
Can I choose which AI Yourni uses?
The provider, yes — Settings switches between OpenAI and Anthropic. There's nothing else to choose: Yourni picks the AI best suited to each part of its work on its own.
Do I have to check in every day?
No. Yourni expects gaps and works with them — it knows how long it's been and opens accordingly. The more regular the record, though, the sooner a shift in trend becomes visible.
Will Yourni tell me if I'm getting worse?
Yourni tracks how you're doing over time and shows the change in your trends. It does not diagnose. The point is that you see the shift — before it becomes unmissable.
Can I delete what Yourni remembers about me?
Yes. Settings → Memory lists every remembered fact, and you can delete any of them individually. Deleting the app removes all local data permanently — there is no backup and no recovery.
What devices does Yourni run on?
Yourni is an iPhone app for now. Android and browser versions are in the works.
What languages does Yourni speak?
English and Czech. You choose the language in the app, and the assistant speaks it from the very first sentence.
Why I'm building this
Yourni didn't start at a whiteboard
It started from my own experience of how easily a decline goes unnoticed — and how obvious, in hindsight, the signals were for weeks beforehand.
I'm interested in healing and growth, not just coping. That's why Yourni asks on the good days too: what holds a person up is worth understanding as much as what pulls them down. An app that only cares about bad days is collecting half the picture.
It's also why it asks so little of you. I build it to make sense on a bad day — because that's when any app is hardest to use, and exactly when it matters most.
One quiet moment a day. Yourni remembers the rest for you.
Nothing to sign up for, no keys, nothing to configure — install and start. Yourni isn't on the public App Store yet; when it is, you'll find it here.