# 计算器 vs VoiceTimer Countdown

The clearest difference is in-app purchases: 计算器 at none against VoiceTimer Countdown's 1. 计算器 also leads on ads (none vs shown) and iOS requirement (12.0 vs 18.0). VoiceTimer Countdown's advantage is update cadence (every 2 days vs every 32 months). On price and device support there is nothing between them.

Both are free to download. VoiceTimer Countdown sells 1 one-off in-app purchase. 计算器 asks for nothing beyond the download.

计算器 ships an update every 32 months, VoiceTimer Countdown every 2 days. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 计算器 | VoiceTimer Countdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 32 months | **Every 2 days** |
| Size | 15 MB | 24 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [德蔚 胡](https://appshunter.io/developer/1685595219) | [Yasuko Shikiuchi](https://appshunter.io/developer/316029096) |

## What reviewers say

### 计算器

[App page](https://appshunter.io/ios/app/id6449093985)

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

**In-app purchases:** none


### VoiceTimer Countdown

[App page](https://appshunter.io/ios/app/voicetimer-countdown/id6762676566)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is 计算器 free?

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

### Is VoiceTimer Countdown free?

VoiceTimer Countdown is free to download, with in-app purchases available.

### Do 计算器 or VoiceTimer Countdown have ads?

VoiceTimer Countdown shows ads; 计算器 does not.

### Which is updated more often, 计算器 or VoiceTimer Countdown?

计算器 ships an update every 32 months, and VoiceTimer Countdown every 2 days. Most recently, 计算器 was updated on September 23, 2026 and VoiceTimer Countdown on September 24, 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.*