The Vow
The venue is booked.
Have you practiced what you'll actually say when you kneel?
A flight simulator for your relationship
Practice the fight, the apology, the proposal, the goodbye — with a persona built from your memories of your real partner, not from thin air. Then go have the real one.
No card required · 18+ · Uploads analyzed and deleted within 60 seconds
The Gym frame
The most important conversations of your life are the only ones you walk into cold. Reheart is where you practice — before it counts.
Athletes
rehearse the play before the game.
Pilots
train in the simulator before they fly.
Lawyers
do a mock trial before they argue.
The Living Persona
Add what you have and watch the persona come into focus. Three months of texts can take accuracy from 30% to 78%.
This is your subjective model, built from your perspective — a practice partner, not a prediction engine. It will never be the real person, and we’re explicit about that everywhere it matters.
The Moment of Need
You usually know exactly which talk is coming. Reheart meets you at that specific moment.
The Vow
The venue is booked.
Have you practiced what you'll actually say when you kneel?
Sparr
You've had this argument twelve times.
This time, practice it once before you start it for real.
The Apology
You owe someone a real apology.
Say it here first — to a persona that won't let you off easy.
How it works
Add what you have — a description, photos, a voice clip, three months of texts. Reheart learns how your partner talks, argues, and softens.
Pick the moment you need to rehearse: the fight, the apology, the proposal, the goodbye. Ten modes, each tuned to a different hard talk.
Have the conversation in a bounded session. The persona pushes back the way they actually would — it doesn't just agree with you.
Each session ends with a score card: what landed, the key moment, and one specific thing to try when you have the real conversation.
The modes
Each mode is tuned to a different hard conversation. Pick the one you need today.
Rehearse the argument you keep losing. Your persona pushes back — it doesn't fold.
One sessionPractice the proposal before the venue is booked. Get a score card on what landed.
One sessionThe conversation you've been avoiding. Say it once here before you say it for real.
One sessionAn apology that actually lands. Your persona won't accept the easy version.
One sessionPractice the ending with care. Always closes with a gentle wellness check.
One sessionAfter the storm. Find your way back without re-lighting the fight.
One sessionSay the thing you mean but never quite say out loud.
One sessionTell them the truth you've been carrying — and hear how it might land.
One sessionMake the first move. Find out whether they'd have said yes.
One sessionStep into their perspective. No score, no winning — just understanding.
Half a sessionPricing
Your first session is on us. Buy sessions in packs, or go unlimited with Pro.
Try one full session, on us.
For the one conversation that's coming up.
Practice until it feels natural.
A steady rhythm of practice.
or $99/yr
Unlimited practice, whenever you need it.
or $199/yr
Voice sessions and couples mode are in development — coming soon, not included today.
Trust & privacy
The hardest part of a tool like this is trust. We earn it with specifics, not promises.
Source files — photos, chat exports, voice clips — are removed from storage within 60 seconds of processing. We keep the persona, not your originals.
Reheart is a bounded practice tool. No persistent relationship with the AI, no clinical claims — every session is designed to end and send you back to the real conversation.
You're told you're practicing with AI at the start of every session and at regular intervals — in line with the EU AI Act, California SB 243, and New York's AI Companion law.
Read the full detail in our Privacy Policy, AI Disclosure, and Safety & Support pages.
Questions
No. Reheart is the opposite of a companion app. There is no ongoing relationship with the AI — every session is bounded and ends, and the whole product is designed to send you back to the real conversation. The persona only ever plays your real partner, never a fabricated character.
No. Reheart is a communication-practice tool, not therapy and not a substitute for professional mental-health care. It does not diagnose, treat, or provide clinical advice. If you're in crisis, the Safety page lists the 988 Suicide & Crisis Lifeline and Crisis Text Line.
They're analyzed to build your persona and then deleted from storage within 60 seconds of processing. We keep the learned patterns that power your persona, not the original files. You can pause or delete any data source at any time, and deletions are honored.
It's a subjective model built from your perspective — a practice partner, not a prediction engine. Accuracy climbs as you add sources: a short description starts you around 30%, and a few months of texts can take it to roughly 78%. It will never be the real person, and we're explicit about that throughout.
Uploading another person's messages, photos, or voice involves their personal data. You're responsible for having a lawful basis to do so, and you agree to that in our Terms. We minimize what we process, delete source files within 60 seconds, and never share persona data. See the Privacy Policy for the full detail.
Inside a session the persona stays in character as your partner — that's the point of practice. But Reheart discloses that you're interacting with AI at the start of every session and at regular intervals, in line with AI-transparency law. It is never hidden from you that this is a simulation.
Yes. Your first full session is free, with no card required. After that you can buy sessions in packs, or subscribe to Plus or Pro. Pro includes a 7-day free trial.
Your first session is free. No card, no commitment — just the chance to get it right before it counts.
Start free