# 国色考 vs Tug Calc

The clearest difference is price: Tug Calc at Free against 国色考's $0.29. Tug Calc also leads on update cadence (every 5 days vs monthly) and device support (4 vs 2). On ads and in-app purchases there is nothing between them.

Tug Calc is free to download; 国色考 costs $0.29 up front. 国色考 sells 1 one-off in-app purchase and Tug Calc sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

国色考 ships an update monthly, Tug Calc every 5 days. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 国色考 | Tug Calc |
| --- | --- | --- |
| Price | $0.29 | **Free** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Size | 26 MB | 54 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [正旋 金](https://appshunter.io/developer/1452746772) | [嘉欣 胡](https://appshunter.io/developer/1640395440) |

## What reviewers say

### 国色考

[App page](https://appshunter.io/ios/app/id6444863051)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 灵犀币100枚 | $0.99 | one-time |


### 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 |


## Frequently asked questions

### Is 国色考 free?

国色考 costs $0.29, and also offers in-app purchases.

### Is Tug Calc free?

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

### Do 国色考 or Tug Calc have ads?

Neither 国色考 nor Tug Calc shows ads.

### Which is updated more often, 国色考 or Tug Calc?

国色考 ships an update monthly, and Tug Calc every 5 days. Most recently, 国色考 was updated on October 10, 2026 and Tug Calc 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.*