# Tug Calc vs 国学万年历

The clearest difference is update cadence: 国学万年历 at every 2 days against Tug Calc's every 5 days. Tug Calc's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Tug Calc sells 4 in-app purchases, starting at $0.99 per month and 国学万年历 sells 3 in-app purchases, starting at $12.99 per year. Whichever you choose, the download price is not the number that matters.

Tug Calc ships an update every 5 days, 国学万年历 every 2 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Tug Calc | 国学万年历 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Size | 54 MB | 8 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [嘉欣 胡](https://appshunter.io/developer/1640395440) | [宁伟 陈](https://appshunter.io/developer/1801975672) |

## What reviewers say

### Tug Calc

[App page](https://appshunter.io/ios/app/tug-calc/id6744523761)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscriptions | $0.99 | per month |
| Quarterly Subscriptions | $0.99 | per 3 months |
| Annual Subscription | $2.99 | per year |
| Perpetual Subscription | $4.99 | one-time |


### 国学万年历

[App page](https://appshunter.io/ios/app/id6780801313)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 年度会员 | $12.99 | per year |
| 单次报告 | $0.99 | one-time |
| 永久会员 | $29.99 | one-time |


## Frequently asked questions

### Is Tug Calc free?

Tug Calc is free to download, with in-app purchases available.

### Is 国学万年历 free?

国学万年历 is free to download, with in-app purchases available.

### Do Tug Calc or 国学万年历 have ads?

Neither Tug Calc nor 国学万年历 shows ads.

### Which is updated more often, Tug Calc or 国学万年历?

Tug Calc ships an update every 5 days, and 国学万年历 every 2 days. Most recently, Tug Calc was updated on October 30, 2026 and 国学万年历 on November 5, 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.*