# Countdown to Zero vs 问真八字

The clearest difference is rating: Countdown to Zero at 4.7 against 问真八字's 3.5. Countdown to Zero also leads on in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 2 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. 问真八字 sells 3 one-off in-app purchases. Countdown to Zero asks for nothing beyond the download.

Countdown to Zero holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 50 and 48 respectively. Written reviews point the same way: 92% of Countdown to Zero's written reviews are positive against 89% of 问真八字's.

Countdown to Zero ships an update every 3 weeks, 问真八字 every 2 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Countdown to Zero | 问真八字 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (50 ratings)](https://appshunter.io/ios/app/countdown-to-zero-life-count/id1024341891/reviews)** | [3.5 (48 ratings)](https://appshunter.io/ios/app/id1665624645/reviews) |
| Number of ratings | **50** | 48 |
| Positive reviews | **91.9% of reviews** | 88.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 84 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhenlai Xia](https://appshunter.io/developer/1435731218) | [Guangzhou Wenzhen Cultural Communication Co., Ltd.](https://appshunter.io/developer/1664632538) |

## What reviewers say

### Countdown to Zero

[App page](https://appshunter.io/ios/app/countdown-to-zero-life-count/id1024341891)

This app helps you appreciate life by counting down the estimated number of days, weeks, and months remaining until significant life milestones. It encourages a positive outlook by highlighting the finiteness of experiences and supports custom event tracking.

**Highlights:** Counts down days, weeks, and months, Tracks remaining life events, Supports custom event tracking, Promotes positive life appreciation, Simple and intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


### 问真八字

[App page](https://appshunter.io/ios/app/id1665624645)

This app provides detailed information and visual representations of the Five Movements and Six Qi (Wuyun Liuqi) system. It offers accurate data on yearly cycles, celestial and terrestrial influences, and their interactions. Users can explore ancient texts and modern explanations, with customizable settings for a personalized experience.

**Highlights:** Accurate Wuyun Liuqi data, Visual Wuyun Liuqi charts, Timestamp progress indicator, Glossary pop-up explanations, Customizable start dates

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3个月黄金体验会员 | $14.99 | one-time |
| 1年黄金会员 | $39.99 | one-time |
| 5年钻石会员 | $129.99 | one-time |


## Frequently asked questions

### Is Countdown to Zero free?

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

### Is 问真八字 free?

问真八字 is free to download, with in-app purchases available.

### Which has better reviews, Countdown to Zero or 问真八字?

Countdown to Zero is rated higher. Countdown to Zero averages 4.7 out of 5 from 50 ratings, while 问真八字 averages 3.5 from 48 ratings.

### Do Countdown to Zero or 问真八字 have ads?

Neither Countdown to Zero nor 问真八字 shows ads.

### Which is updated more often, Countdown to Zero or 问真八字?

Countdown to Zero ships an update every 3 weeks, and 问真八字 every 2 months. Most recently, Countdown to Zero was updated on October 29, 2026 and 问真八字 on October 27, 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.*