# Countdown to Zero vs 一笔画星系

The clearest difference is in-app purchases: Countdown to Zero at none against 一笔画星系's 3. 一笔画星系's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 一笔画星系 sells 3 in-app purchases, starting at $4.99 per month. Countdown to Zero asks for nothing beyond the download.

Countdown to Zero ships an update every 3 weeks, 一笔画星系 every 5 weeks. The most recent releases landed on October 26, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Countdown to Zero | 一笔画星系 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (50 ratings)](https://appshunter.io/ios/app/countdown-to-zero-life-count/id1024341891/reviews)** | — |
| Number of ratings | **50** | — |
| Positive reviews | 91.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 1 MB | 39 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhenlai Xia](https://appshunter.io/developer/1435731218) | [亮亮 汪](https://appshunter.io/developer/1333979344) |

## 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


### 一笔画星系

[App page](https://appshunter.io/ios/app/id6748115833)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Plan | $4.99 | per month |
| Annual Pro Plan | $29.99 | per year |
| 解锁第 11 个星球及后续星球 | $1.99 | one-time |


## Frequently asked questions

### Is Countdown to Zero free?

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

### Is 一笔画星系 free?

一笔画星系 is free to download, with in-app purchases available.

### Do Countdown to Zero or 一笔画星系 have ads?

Neither Countdown to Zero nor 一笔画星系 shows ads.

### Which is updated more often, Countdown to Zero or 一笔画星系?

Countdown to Zero ships an update every 3 weeks, and 一笔画星系 every 5 weeks. Most recently, Countdown to Zero was updated on October 26, 2026 and 一笔画星系 on October 6, 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.*