# 橙子计算器 vs Catdown ~ Countdown

The clearest difference is price: 橙子计算器 at Free against Catdown ~ Countdown's $3.99. Catdown ~ Countdown's advantage is ads (none vs shown) and update cadence (daily vs every 2 weeks). On review sentiment, in-app purchases, device support and iOS requirement there is nothing between them.

橙子计算器 is free to download; Catdown ~ Countdown costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

橙子计算器 ships an update every 2 weeks, Catdown ~ Countdown daily. The most recent releases landed on September 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 橙子计算器 | Catdown ~ Countdown |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | — | Paid |
| Size | 24 MB | 28 MB |
| Requires iOS | **17.0** | 18.1 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [川 周](https://appshunter.io/developer/1611546897) | [Chatsopon Deepateep](https://appshunter.io/developer/1463179711) |

## What reviewers say

### 橙子计算器

[App page](https://appshunter.io/ios/app/id1614630426)

**Features:** macOS Compatibility

**In-app purchases:** none


### Catdown ~ Countdown

[App page](https://appshunter.io/ios/app/catdown-countdown/id6744416907)

Create personalized countdowns for any event with customizable themes and AI-generated visuals. Add your own photos or drawings to make each countdown unique. Make waiting for special moments more enjoyable with a touch of feline charm.

**Highlights:** Fully customizable countdowns, Personalized themes and color palettes, Upload own photos or drawings, AI-generated visual inspiration, Cute cat imagery options

**In-app purchases:** none


## Frequently asked questions

### Is 橙子计算器 free?

橙子计算器 is free to download, with no in-app purchases.

### Is Catdown ~ Countdown free?

Catdown ~ Countdown costs $3.99, with no in-app purchases.

### Do 橙子计算器 or Catdown ~ Countdown have ads?

橙子计算器 shows ads; Catdown ~ Countdown does not.

### Which is updated more often, 橙子计算器 or Catdown ~ Countdown?

橙子计算器 ships an update every 2 weeks, and Catdown ~ Countdown daily. Most recently, 橙子计算器 was updated on September 24, 2026 and Catdown ~ Countdown on October 13, 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.*