# Syncbox: Couple App — Private SNS for two

> Private SNS for two (iPhone/iPad app by Jiyoon Yeo.)

- Source: https://appshunter.io/ios/app/syncbox-couple-app/id6821978590 (this page in markdown: same URL + `.md`)
- Developer: [Jiyoon Yeo](https://appshunter.io/developer/6821978592)
- Category: Lifestyle, Social Networking
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 11 MB
- Languages: Korean
- Released: 2026-11-03
- Data updated: 2026-11-06

## What is Syncbox?

Syncbox is a private space for just two people - a couple, or two close friends.
It is not a social feed built to be seen. It is a box where letters and conversations that reach only each other pile up, one by one. The quiet wait for a letter that might be there, the flutter of opening it - all of it becomes your story together.

◆ Made for
· Couples who hate watching chat messages scroll away and disappear
· Partners who exchange letters on anniversaries but have nowhere to keep them
· Two people in a long-distance relationship who want to send their hearts more carefully
· Best friends who live far apart but still want to share everyday life

◆ Weekly letter
Once a week, write a letter with real care. Attach photos and a song. You can unsend it as long as it has not been read.

◆ Q&A (two-way questions)
Answer questions like "When did you first fall for each other?" Both answers are revealed only once you have both written yours. A new question each time, to know each other a little deeper.

◆ Piece letter
It does not have to be a long letter. Send a small piece of your heart the moment it comes to mind, and trade replies.

◆ Feed
Share today's moment with one photo and a caption. Emoji reactions and comments keep the conversation going lightly.

◆ DM (real-time chat)
A messenger for just the two of you: quoted replies, emoji reactions, photos, videos and voice messages, chat search and jump-to-date. Star the messages you want to keep.

◆ Bookmarks
Gather the letter lines, photos and chat moments you want to treasure in one place - your shared keepsake box.

◆ Privacy you can count on
· Strictly 1:1 - connected only to the one person you invite
· App lock with a PIN and Face ID / Touch ID
· Notification emails never include the message body
· All data travels over encrypted connections only

Time passes, but what you shared can stay.
Start keeping your story in Syncbox today.

## Is Syncbox safe?

Not enough ratings yet to assess Syncbox.

## Is Syncbox legit?

Syncbox: Couple App has limited verification signals. The AppsHunter Legitimacy Score for Syncbox is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.0.3 — 2026-11-05

Swipe from the left edge to go back.

### 1.0.2 — 2026-11-04

Swipe from the left edge to go back.

### 1.0.1 — 2026-11-04

Improved stability.

### 1.0 — 2026-11-03

No release notes.

## Related topics

[areuok- demumu to i'm ok](https://appshunter.io/ios/topics/areuok-demumu-to-i-m-ok) · [coupling](https://appshunter.io/ios/topics/coupling)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*