# 时光纪念日 vs 计算器

The clearest difference is ads: 计算器 at none against 时光纪念日's shown. 计算器 also leads on iOS requirement (12.0 vs 14.1). 时光纪念日's advantage is update cadence (every 8 days vs every 32 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

时光纪念日 ships an update every 8 days, 计算器 every 32 months. The most recent releases landed on October 20, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 时光纪念日 | 计算器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 32 months |
| Size | 295 MB | 15 MB |
| Requires iOS | 14.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xuzhou Regular Software Technology Co., Ltd](https://appshunter.io/developer/1544395128) | [德蔚 胡](https://appshunter.io/developer/1685595219) |

## What reviewers say

### 时光纪念日

[App page](https://appshunter.io/ios/app/id1549485093)

**Features:** macOS Compatibility

**In-app purchases:** none


### 计算器

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 时光纪念日 free?

时光纪念日 is free to download, with no in-app purchases.

### Is 计算器 free?

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

### Do 时光纪念日 or 计算器 have ads?

时光纪念日 shows ads; 计算器 does not.

### Which is updated more often, 时光纪念日 or 计算器?

时光纪念日 ships an update every 8 days, and 计算器 every 32 months. Most recently, 时光纪念日 was updated on October 20, 2026 and 计算器 on October 27, 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.*