# Duet vs PinyPiny

The clearest difference is in-app purchases: Duet at none against PinyPiny's 3. Duet also leads on iOS requirement (15.0 vs 18.0). PinyPiny's advantage is ads (none vs shown) and update cadence (every 2 days vs weekly). On price and device support there is nothing between them.

Both are free to download. PinyPiny sells 3 in-app purchases, starting at $1.99 per month. Duet asks for nothing beyond the download.

Duet ships an update weekly, PinyPiny every 2 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Duet | PinyPiny |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/duet-shared-couples-calendar/id6503354460/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 81 MB | 185 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TSE JU LIN](https://appshunter.io/developer/1749076563) | [馨瑶 王](https://appshunter.io/developer/1680428559) |

## What reviewers say

### Duet

[App page](https://appshunter.io/ios/app/duet-shared-couples-calendar/id6503354460)

This app helps couples stay organized and connected by offering a shared calendar, anniversary tracking, and a collaborative wish list. It focuses on practical tools for coordination rather than gamified romance prompts.

**Highlights:** Shared calendar for couples, Anniversary and date tracking, Collaborative wish list, Event planning for two, Relationship organization tools

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

**In-app purchases:** none


### PinyPiny

[App page](https://appshunter.io/ios/app/pinypiny/id6804919805)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $9.99 | per year |
| Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Duet free?

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

### Is PinyPiny free?

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

### Do Duet or PinyPiny have ads?

Duet shows ads; PinyPiny does not.

### Which is updated more often, Duet or PinyPiny?

Duet ships an update weekly, and PinyPiny every 2 days. Most recently, Duet was updated on November 4, 2026 and PinyPiny on October 31, 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.*