memento — A Time Capsule × Diary, A Time-Traveling Social App to Color Your Future
Your “today” becomes tomorrow’s treasure.

memento is not just another photo organizer or daily logging app.
It’s a whole new kind of social experience where questions from your past self and messages to your future self intersect.
Through shared moments and connections with friends, every little piece of your daily life transforms into an irreplaceable memory.

Main Features
• Group Memento
Create groups for special events like trips, camps, or festivals, and record your stories in real time.
For 12 hours after a post, group members can add their own episodes.
When everything is unlocked on the set reminder day, it’s as exciting as opening a treasure chest.

• Daily Memento
Answer one of 70 daily prompts to naturally record your growth and changes.
You can’t see your friends’ answers until you post your own — a gentle push to help you build a journaling habit.

• My Memento
A feature that lets you craft your own personal timeline.
Capture your life through different themes, such as travels, hobbies, or personal challenges.
By arranging your memories, you can look back on your journey and discover new insights and gratitude.

• Sharing & Connection
Comment on posts to deepen your bonds with friends.
Memories aren’t just for keeping to yourself — they shine even brighter when shared and talked about together.

What Makes memento Special
• Time-Transcending Storytelling
Everyday moments, when you look back, become dramatic pages of your life story.
Your past days are not just records — they become gifts to your future self.

• Beautiful and Easy-to-Use Design
An intuitive, refined interface makes it easy for anyone to get started.
Simple yet thoughtfully designed features make daily use both fun and engaging.

Bring a little magic to your everyday life with memento.
Today’s small moments can someday fill you with nostalgia and joy.
Start creating the best gift for your future self, right here, right now.

Contact Us
Web: mementojapan.com
Email: [email protected]
Instagram: @memento.japan
TikTok: @memento_japan