# AI视频生成 vs Countdown & Lunar Reminder

The clearest difference is update cadence: Countdown & Lunar Reminder at monthly against AI视频生成's every 3 months. AI视频生成's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI视频生成 sells 3 in-app purchases, starting at $3.99 per month and Countdown & Lunar Reminder sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

AI视频生成 ships an update every 3 months, Countdown & Lunar Reminder monthly. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AI视频生成 | Countdown & Lunar Reminder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/ai/id6479731823/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Subscription | — |
| Size | 33 MB | 138 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [鑫昕 马](https://appshunter.io/developer/1715187540) | [志勇 孙](https://appshunter.io/developer/1788839038) |

## What reviewers say

### AI视频生成

[App page](https://appshunter.io/ios/app/ai/id6479731823)

Create engaging book list videos with AI. Automatically generate video content, book introductions, and classic quotes based on book titles. Discover trending books and enhance your reading content.

**Highlights:** Generate book list videos, Automatic book introductions, Extract classic book quotes, Discover popular book lists, Customizable templates and music, Add book covers and descriptions

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $3.99 | per month |
| 年会员 | $9.99 | per year |
| 永久会员 | $14.99 | one-time |


### Countdown & Lunar Reminder

[App page](https://appshunter.io/ios/app/countdown-and-lunar-reminder/id6769223331)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Annual | $9.99 | per year |


## Frequently asked questions

### Is AI视频生成 free?

AI视频生成 is free to download, with in-app purchases available.

### Is Countdown & Lunar Reminder free?

Countdown & Lunar Reminder is free to download, with in-app purchases available.

### Do AI视频生成 or Countdown & Lunar Reminder have ads?

Neither AI视频生成 nor Countdown & Lunar Reminder shows ads.

### Which is updated more often, AI视频生成 or Countdown & Lunar Reminder?

AI视频生成 ships an update every 3 months, and Countdown & Lunar Reminder monthly. Most recently, AI视频生成 was updated on October 16, 2026 and Countdown & Lunar Reminder on October 25, 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.*