# Happy vs 念念不忘 · 纪念日AI贺卡

Happy and 念念不忘 · 纪念日AI贺卡 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Happy sells 3 in-app purchases, starting at $0.99 per month and 念念不忘 · 纪念日AI贺卡 sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Happy ships an update every 3 weeks, 念念不忘 · 纪念日AI贺卡 every 2 weeks. The most recent releases landed on October 22, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Happy | 念念不忘 · 纪念日AI贺卡 |
| --- | --- | --- |
| Price | Free | Free |
| 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 | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 63 MB | 40 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Floating Island Technology Co., Ltd.](https://appshunter.io/developer/1560604816) | [三淼 李](https://appshunter.io/developer/1812594990) |

## 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 |


### 念念不忘 · 纪念日AI贺卡

[App page](https://appshunter.io/ios/app/ai/id6759729129)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus 会员 · 月付 | $1.99 | per month |
| Plus 会员 · 年付 | $14.99 | per year |


## Frequently asked questions

### Is Happy free?

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

### Is 念念不忘 · 纪念日AI贺卡 free?

念念不忘 · 纪念日AI贺卡 is free to download, with in-app purchases available.

### Do Happy or 念念不忘 · 纪念日AI贺卡 have ads?

Neither Happy nor 念念不忘 · 纪念日AI贺卡 shows ads.

### Which is updated more often, Happy or 念念不忘 · 纪念日AI贺卡?

Happy ships an update every 3 weeks, and 念念不忘 · 纪念日AI贺卡 every 2 weeks. Most recently, Happy was updated on October 22, 2026 and 念念不忘 · 纪念日AI贺卡 on October 9, 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.*