# Happy vs DST查看器

The clearest difference is price: Happy at Free against DST查看器's $2.99. DST查看器's advantage is update cadence (daily vs every 3 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Happy is free to download; DST查看器 costs $2.99 up front. Happy sells 3 in-app purchases, starting at $0.99 per month and DST查看器 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Happy ships an update every 3 weeks, DST查看器 daily. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Happy | DST查看器 |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.7 (12 ratings)](https://appshunter.io/ios/app/happydays/id1564858029/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | **Freemium** | Paid |
| Size | 63 MB | 4 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Floating Island Technology Co., Ltd.](https://appshunter.io/developer/1560604816) | [晓宏 吴](https://appshunter.io/developer/1888851814) |

## What reviewers say

### Happy

[App page](https://appshunter.io/ios/app/happydays/id1564858029)

This app helps you track important dates like birthdays and anniversaries with customizable countdowns and count-ups. It offers widgets, event journaling, and automatic calculations for special occasions.

**Highlights:** Countdown and count-up support, Anniversary and birthday tracking, Customizable widgets, Event journaling, Automatic date calculations, Birthday constellations and dynamic age icons

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Happy:Days Pro Monthly | $0.99 | per month |
| Happy:Days Pro Yearly | $5.99 | per year |
| Happy:Days Pro Lifetime | $12.99 | one-time |


### DST查看器

[App page](https://appshunter.io/ios/app/dst/id6761320954)

A professional mobile tool for embroidery designers, pattern makers, and factories to view, manage, and calculate industrial standard .dst embroidery files. It offers a high-performance rendering engine, intuitive measurement controls, and powerful local file management with image search capabilities, all while ensuring design privacy through offline operation.

**Highlights:** Professional stitch rendering, Fast preview mode, Built-in thread color palettes, Horizontal repeat layout, Integrated embroidery calculator, Local file management, Image search for embroidery files

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DST查看器 | $2.99 | one-time |


## Frequently asked questions

### Is Happy free?

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

### Is DST查看器 free?

DST查看器 costs $2.99, and also offers in-app purchases.

### Do Happy or DST查看器 have ads?

Neither Happy nor DST查看器 shows ads.

### Which is updated more often, Happy or DST查看器?

Happy ships an update every 3 weeks, and DST查看器 daily. Most recently, Happy was updated on October 22, 2026 and DST查看器 on October 11, 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.*