# 先知 vs QuickCountdown

先知 and QuickCountdown 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. Neither carries in-app purchases, so what you see is what you pay.

先知 ships an update monthly, QuickCountdown every 2 months. Both last shipped on October 10, 2026.

## The numbers

| Metric | 先知 | QuickCountdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 140 MB | 16 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [克建 户](https://appshunter.io/developer/1594189009) | [单 安](https://appshunter.io/developer/1703734519) |

## What reviewers say

### 先知

[App page](https://appshunter.io/ios/app/id1594193304)

**Features:** macOS Compatibility

**In-app purchases:** none


### QuickCountdown

[App page](https://appshunter.io/ios/app/quickcountdown/id6479987585)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 先知 free?

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

### Is QuickCountdown free?

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

### Do 先知 or QuickCountdown have ads?

Neither 先知 nor QuickCountdown shows ads.

### Which is updated more often, 先知 or QuickCountdown?

先知 ships an update monthly, and QuickCountdown every 2 months. Most recently, 先知 was updated on October 10, 2026 and QuickCountdown on October 10, 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.*