Talk anytime it matters. Understand yourself with evidence-based tests and AI interpretation. Breathe, relax, and track your mood — all in one calm, private space.
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Your first day: 30 messages, no card. Then 3 a day, free for ever.
What you've shared — the people in your life, what's weighing on you, what helped last time — carries into every conversation. You can see what Luther remembers, and make it forget anything.
A warm, intelligent companion that listens without judgment, remembers your context, and helps you make sense of what you feel — by text or voice.
Check your levels of anxiety, stress, depression, burnout and more with clinically-grounded questionnaires — then get a personal AI interpretation.
Breathing techniques, grounding, and a CBT journal to steady yourself in the moment and build healthier thinking over time.
18 immersive soundscapes — rain, ocean, white noise and more — to help you relax, focus, or drift off to sleep.
A quick daily check-in reveals your patterns over time and keeps you motivated with gentle streaks and weekly insights.
Structured, multi-day courses that combine chat, exercises and reflection to work through anxiety, sleep, self-esteem and more.
English, German, Spanish, French and Italian — not just the buttons. Luther replies, interprets your tests and writes to you in the language you chose.
Sign in with your email or Google — no password to invent — and tell Luther a little about what brought you here.
Open a conversation whenever something's on your mind, or take a quick test to see where you stand.
Track your mood, follow a program, and use exercises and sounds to feel steadier day by day.
3am worries, a rough day, or a decision you can't untangle — Luther is there in seconds. It listens, reflects your feelings back, and gently guides you toward clarity, drawing on techniques from evidence-based psychology.
It makes complete sense that you'd feel overwhelmed. What's one small thing that felt manageable today?
I actually went for a walk this morning.
That's real progress. Let's build on it — want to try a 3-minute breathing exercise together?
Take clinically-grounded assessments for anxiety, depression, stress, burnout and more. Instead of a raw score, Luther gives you a warm, personalized AI interpretation — and suggests what to do next.
AI note: Your anxiety has eased since last week. Keep up the evening wind-down — it's working.
Guided breathing, grounding exercises and 18 immersive soundscapes help you slow down when anxiety spikes — or drift off to sleep at the end of a long day.
🌬️ Breathe in for 4 · hold 4 · out for 6
Your inner life is yours alone. Luther is built to keep it that way.
Your conversations and data are encrypted in transit and protected on secure servers.
Delete conversations anytime. Your data is never sold, and it's used only to help you.
Your conversations are not used to train AI models, and there are no ad networks or behavioural trackers in the app.
Luther supports your everyday well-being. If you're ever in crisis, it points you to real human help, right away.
Your first day comes with 30 messages and no card. Premium raises the limits, and the yearly plan starts with 7 days free.
Everything the app does, at a pace you can keep for nothing.
Room to talk on the days you need it most.
Only if Premium isn't enough: long conversations every day, mostly by voice.
Prices are shown in US dollars. Google Play bills in your local currency and shows the exact amount before you confirm.
No. Luther is an AI companion for everyday emotional support, self-reflection and mental-health habits. It's a powerful complement to professional care, but it doesn't replace a licensed therapist, diagnosis or treatment. If you're in crisis, please reach out to a professional or a helpline right away.
Yes. Your conversations and personal data are encrypted in transit and stored securely. We never sell your data, and it's only used to make your experience better. You can delete your conversations at any time.
No. Your first day comes with 30 messages, 3 conversations and 2 full test readings — no card needed. After that, chatting, mood tracking, exercises, sounds and the diary are free to use every day, and a test a week comes with an AI reading. Premium raises the limits, and the yearly plan starts with 7 free days — that part goes through Google Play, so it uses the payment method on your account, and nothing is charged until the free days are over. Cancel any time before then and you pay nothing.
Absolutely. Luther works in your browser on desktop and mobile, and as a mobile app. You sign in with the same account everywhere, and your conversations, tests and mood history stay perfectly in sync.
Yes. Premium is $9.99 a month, or $59.99 for a year — $5 a month, billed once. You can switch between the two at any time: the switch happens straight away, and the time you've already paid for is credited to the new plan, so you're never charged twice.
English, German, Spanish, French and Italian. It's not only the interface: replies in chat, test questions and their interpretations, emails and reminders all arrive in the language you pick — and you can change it at any time in Settings.
Luther offers 9 evidence-based questionnaires covering anxiety, depression, stress, burnout and more. Each result comes with a personalized AI interpretation and gentle suggestions for next steps.
Youper closed on September 30, 2026, and its data is deleted from October 1. Start Luther free: daily check-ins, a CBT-informed chat, mood tracking and the standard questionnaires — PHQ-8 and GAD-7 — are all here. We've written a short guide: Switching from Youper.
You can cancel anytime in Google Play: in Luther, open Settings → Subscription and tap “Manage in Google Play”, or go to Play Store → Payments & subscriptions → Subscriptions. There are no lock-ins and no cancellation fees.
Join Luther and get a companion that listens, science-backed insight, and a daily toolkit for well-being — all in one place.
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