# Couple Diary vs sis

The clearest difference is review sentiment: Couple Diary at 64% against sis's 14%. Couple Diary also leads on in-app purchases (none vs 2). sis's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. sis sells 2 in-app purchases, starting at $12.99 per month. Couple Diary asks for nothing beyond the download.

Couple Diary ships an update every 4 months, sis every 6 weeks. The most recent releases landed on September 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Couple Diary | sis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (53 ratings)](https://appshunter.io/ios/app/couple-diary/id1357502524/reviews)** | — |
| Number of ratings | **53** | — |
| Positive reviews | **64.2% of reviews** | 13.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 39 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [PIONE](https://appshunter.io/developer/1125428540) | [Jeong Sohee](https://appshunter.io/developer/1468893469) |

## What reviewers say

### Couple Diary

[App page](https://appshunter.io/ios/app/couple-diary/id1357502524)

This app allows couples to create a shared diary by answering daily questions together. It stores answers on a server, enabling access from anywhere and tracking how perspectives change over time. It aims to foster deeper connection and self-discovery within relationships.

**Highlights:** Daily shared questions, QnA diary entries, Answers stored on server, Access from anywhere, Track perspective changes, Relationship insights

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### sis

[App page](https://appshunter.io/ios/app/sis/id1468893470)

Connect with like-minded individuals for various social activities and information sharing. Discover local businesses and engage in real-time conversations. Invitation-only access ensures a curated community for adult queer women.

**Highlights:** Anonymous community forums, Organize spontaneous meetups, Interest-based small groups, Local business directory, Location-based friend finder, Real-time unlimited chat, Keyword-based profiles

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 시스 플러스 얼리버드 월 구독 | $12.99 | per month |
| 시스 플러스 월 구독 | $12.99 | per month |


## Frequently asked questions

### Is Couple Diary free?

Couple Diary is free to download, with no in-app purchases.

### Is sis free?

sis is free to download, with in-app purchases available.

### Do Couple Diary or sis have ads?

Both Couple Diary and sis show ads.

### Which is updated more often, Couple Diary or sis?

Couple Diary ships an update every 4 months, and sis every 6 weeks. Most recently, Couple Diary was updated on September 14, 2026 and sis on September 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*