Our Postbox
Cabine.io Communication
Write heartfelt letters, wait for delivery, and keep your words close together.
- Downloads
- 6+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Aug 9
- 2026 · v0.1.0
Screenshots
About Our Postbox
Futari Post is a private letter app for two partners. Write a title and message, choose the feeling behind your letter and how it should be delivered, then let the waiting become part of the experience.
WHAT YOU CAN DO
• Create a shared post with your partner through an invite link
• Write thoughtful letters with a title and message
• Choose from five categories: To Share, Comfort, Thank You, Well Done, and Memories
• Choose Standard, Express, or Scheduled delivery
• Open delivered envelopes and keep letters in your post
• Read meaningful words again whenever you want
• Save unfinished letters as drafts
DELIVERY OPTIONS
• Standard: about 12 hours
• Express: about 3 hours
• Scheduled: 9:00 AM on a selected day from tomorrow through seven days ahead
No email address or password is required. Letters are shared only with the partner you connect with.
Keep the words that matter from disappearing into the flow of everyday conversation.
What’s new
Version 0.1.0 · Updated August 9, 2026
Our Postbox is now open. It’s a quiet place for couples to share words worth keeping—just a little different from an instant message. Write a letter, choose when it should arrive, and drop it into your shared postbox. Wait for it, open the envelope, and return to it whenever you like. We hope your most important words find a place to stay.
Alternatives to Our Postbox
Looking for apps like Our Postbox? Here are 6 similar Android apps on Google Play. All of them are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| Our Postbox | – | Free | 5+ | Aug 9, 2026 | |
| Messenger SMS & Chat App | – | Free | 1,000+ | Oct 15, 2026 | Compare |
| Private Browser Incognito | – | Free | 10+ | Oct 1, 2026 | Compare |
| Dating Quiz | – | Free | 10+ | May 20, 2026 | Compare |
| GenPBX | – | Free | 1,000+ | Aug 29, 2026 | Compare |
| Kindred | – | Free | 10+ | Sep 6, 2026 | Compare |
| VoiceBridge Pro | – | Free | 5+ | Sep 17, 2026 | Compare |
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