Your mindful journaling companion
Write, reflect, and grow every day
Lumio uses AI to help you understand your thoughts, track your mood, and build lasting habits — all in a beautifully simple journal.
Free forever · No credit card required
Active users
127K+
↑ 23% this month
Journal entries
4.2M
↑ 18% this month
App Store rating
4.9
★ 8,400 reviews
Days avg. streak
34
↑ 12% vs last year
Why people love Lumio
Everything you need to build a journaling habit
AI-powered insights
Lumio reads between the lines. Get weekly summaries, pattern recognition, and personalised prompts that help you dig deeper.
Mood & habit tracking
Log your mood in seconds with an emoji or a word. Lumio connects the dots over time so you can see what affects how you feel.
End-to-end encrypted
Your journal is yours alone. Every entry is encrypted on your device before it ever touches our servers. We literally cannot read it.
Daily prompts
Never stare at a blank page. Choose from 300+ prompts crafted by therapists and coaches, or let Lumio suggest one based on your week.
Sync across devices
Start on your phone, continue on your tablet. Everything syncs instantly and works offline — your entries are always available.
Progress & streaks
Streaks keep you accountable. Track your journaling consistency with beautiful charts and celebrate milestones along the way.
Loved by 127,000+ journalers
Real people, real results
I've tried every journaling app out there. Lumio is the first one that actually helped me understand why I was feeling burnt out. The AI insights are genuinely useful, not gimmicky.
The streak feature sounds simple but it completely changed my relationship with writing. 112 days in and I haven't missed one. My therapist noticed a difference before I did.
I was sceptical about the AI part but it's surprisingly good at spotting patterns. It told me I write less when I skip my morning run — completely true and now I use it as motivation.
Simple pricing
Start free, upgrade when you're ready
No contracts. Cancel any time. All plans include a 14-day free trial of Lumio Pro.
Free
Everything you need to start a journaling habit.
- Unlimited journal entries
- Basic mood tracking
- 30-day history
- 5 daily prompts per month
- iOS & Android apps
Most popular
Pro
AI insights and unlimited everything for serious journalers.
- Everything in Free
- AI-powered weekly insights
- Unlimited prompt library
- Mood pattern analysis
- End-to-end encryption
- Export to PDF
Family
Share Lumio Pro with up to 5 family members.
- Everything in Pro
- Up to 5 accounts
- Shared family streaks
- Parental controls
- Priority support
FAQ
Common questions
Is my journal really private?
Yes — completely. Entries are encrypted on your device using AES-256 before upload. Our servers only ever see ciphertext. Even Lumio employees cannot read your journal.
What happens when my 14-day trial ends?
You'll automatically drop to the Free plan. All your entries are kept — you just lose access to Pro features like AI insights and the full prompt library. No surprise charges.
Can I export my data?
Pro users can export the full journal history as a PDF or JSON file at any time from Settings → Export. Free users can export the last 30 days.
Does it work offline?
Yes. The full app works offline — write, browse, and edit entries without a connection. Changes sync automatically when you're back online.
How does the AI know what to say?
The AI reads your entries (on-device, before encryption) to spot recurring themes, emotional patterns, and topics. It never sends plain-text content to our servers.
Ready to start?
Your journal is waiting
Join 127,000 people who journal with Lumio every day. Free forever — no credit card needed.