# Curling Pro+ vs Undermine

The clearest difference is ads: Curling Pro+ at none against Undermine's shown. Curling Pro+ also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Curling Pro+ sells 3 one-off in-app purchases and Undermine sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Curling Pro+ ships an update every 3 days, Undermine every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Curling Pro+ | Undermine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/curling-pro-plus/id6758169438/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Primary Key Solutions, LLC](https://appshunter.io/developer/1871309356) | [Sui Pan WAN](https://appshunter.io/developer/6817616915) |

## What reviewers say

### Curling Pro+

[App page](https://appshunter.io/ios/app/curling-pro-plus/id6758169438)

Master curling techniques with realistic physics and strategic gameplay. Practice essential shots, learn sweeping, and develop end-to-end strategy. Compete against AI and track your progress on the global leaderboard.

**Highlights:** Master four essential curling shots, Learn sweeping mechanics, Develop end-to-end strategy, Realistic physics and ice friction, Challenge AI opponents, Global leaderboard tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


### Undermine

[App page](https://appshunter.io/ios/app/undermine-four-in-a-row/id6817616913)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Curling Pro+ free?

Curling Pro+ is free to download, with in-app purchases available.

### Is Undermine free?

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

### Do Curling Pro+ or Undermine have ads?

Undermine shows ads; Curling Pro+ does not.

### Which is updated more often, Curling Pro+ or Undermine?

Curling Pro+ ships an update every 3 days, and Undermine every 2 days. Most recently, Curling Pro+ was updated on November 5, 2026 and Undermine on October 31, 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.*