# 小鸟计算器 vs Countdown Log

The clearest difference is price: 小鸟计算器 at Free against Countdown Log's $1.99. Countdown Log's advantage is update cadence (every 5 days vs every 5 months) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

小鸟计算器 is free to download; Countdown Log costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

小鸟计算器 ships an update every 5 months, Countdown Log every 5 days. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 小鸟计算器 | Countdown Log |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Size | 18 MB | 25 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [惠丹 罗](https://appshunter.io/developer/1786147102) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### 小鸟计算器

[App page](https://appshunter.io/ios/app/id6755356686)

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

**In-app purchases:** none


### Countdown Log

[App page](https://appshunter.io/ios/app/countdown-log-days-until/id6767731218)

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

**In-app purchases:** none


## Frequently asked questions

### Is 小鸟计算器 free?

小鸟计算器 is free to download, with no in-app purchases.

### Is Countdown Log free?

Countdown Log costs $1.99, with no in-app purchases.

### Do 小鸟计算器 or Countdown Log have ads?

Neither 小鸟计算器 nor Countdown Log shows ads.

### Which is updated more often, 小鸟计算器 or Countdown Log?

小鸟计算器 ships an update every 5 months, and Countdown Log every 5 days. Most recently, 小鸟计算器 was updated on October 6, 2026 and Countdown Log on October 17, 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.*