# Cube Root Calculator SDG vs Liquid Clock

The clearest difference is in-app purchases: Cube Root Calculator SDG at none against Liquid Clock's 3. Cube Root Calculator SDG also leads on iOS requirement (11.0 vs 26.2). Liquid Clock's advantage is ads (none vs shown) and update cadence (fortnightly vs every 12 months). On price and device support there is nothing between them.

Both are free to download. Liquid Clock sells 3 in-app purchases, starting at $0.99 per month. Cube Root Calculator SDG asks for nothing beyond the download.

Cube Root Calculator SDG ships an update every 12 months, Liquid Clock fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Cube Root Calculator SDG | Liquid Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Fortnightly** |
| Size | 12 MB | 23 MB |
| Requires iOS | **11.0** | 26.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) | [东东 张](https://appshunter.io/developer/1637022692) |

## What reviewers say

### Cube Root Calculator SDG

[App page](https://appshunter.io/ios/app/cube-root-calculator-sdg/id6741202278)

**Features:** macOS Compatibility

**In-app purchases:** none


### Liquid Clock

[App page](https://appshunter.io/ios/app/liquid-clock/id6757009818)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $4.99 | per year |
| Lifetime Membership | $9.99 | one-time |


## Frequently asked questions

### Is Cube Root Calculator SDG free?

Cube Root Calculator SDG is free to download, with no in-app purchases.

### Is Liquid Clock free?

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

### Do Cube Root Calculator SDG or Liquid Clock have ads?

Cube Root Calculator SDG shows ads; Liquid Clock does not.

### Which is updated more often, Cube Root Calculator SDG or Liquid Clock?

Cube Root Calculator SDG ships an update every 12 months, and Liquid Clock fortnightly. Most recently, Cube Root Calculator SDG was updated on October 25, 2026 and Liquid Clock on October 28, 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.*