# Rough Diamond Calculator vs Ghost

The clearest difference is in-app purchases: Ghost at none against Rough Diamond Calculator's 3. Ghost also leads on update cadence (monthly vs every 38 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Rough Diamond Calculator sells 3 in-app purchases, starting at $1.99 per 7 days. Ghost asks for nothing beyond the download.

Rough Diamond Calculator ships an update every 38 months, Ghost monthly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Rough Diamond Calculator | Ghost |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 38 months | **Monthly** |
| Size | 51 MB | 61 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gorasiya Vishal Nanjibhai](https://appshunter.io/developer/1287086933) | [SELETRON SNC DI LAGO EMANUEL & STEFANO](https://appshunter.io/developer/1277157614) |

## What reviewers say

### Rough Diamond Calculator

[App page](https://appshunter.io/ios/app/rough-diamond-calculator/id1343735836)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Yearly | $9.99 | per year |
| Lifetime | $19.99 | one-time |


### Ghost

[App page](https://appshunter.io/ios/app/ghost-nxt/id6753014624)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rough Diamond Calculator free?

Rough Diamond Calculator is free to download, with in-app purchases available.

### Is Ghost free?

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

### Do Rough Diamond Calculator or Ghost have ads?

Neither Rough Diamond Calculator nor Ghost shows ads.

### Which is updated more often, Rough Diamond Calculator or Ghost?

Rough Diamond Calculator ships an update every 38 months, and Ghost monthly. Most recently, Rough Diamond Calculator was updated on October 26, 2026 and Ghost on October 25, 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.*