# Duet vs 风扇灯Ultra

The clearest difference is in-app purchases: 风扇灯Ultra at none against Duet's 3. 风扇灯Ultra also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Duet sells 3 in-app purchases, starting at $2.99 per month. 风扇灯Ultra asks for nothing beyond the download.

## The numbers

| Metric | Duet | 风扇灯Ultra |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 80 MB | 80 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TSE JU LIN](https://appshunter.io/developer/1749076563) | [Zhongshan Ruixin Electronic Technology Co.LTD](https://appshunter.io/developer/1521592955) |

## 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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duet Plus (Monthly) | $2.99 | per month |
| Duet Plus (Quarterly) | $5.99 | per 3 months |
| Duet Plus (Yearly) | $17.99 | per year |


### 风扇灯Ultra

[App page](https://appshunter.io/ios/app/ultra/id6745728994)

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

**In-app purchases:** none


## Frequently asked questions

### Is Duet free?

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

### Is 风扇灯Ultra free?

风扇灯Ultra is free to download, with no in-app purchases.

### Do Duet or 风扇灯Ultra have ads?

Duet shows ads; 风扇灯Ultra does not.

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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.*