# Calculator Plus Pro vs ChromaTools

The clearest difference is in-app purchases: ChromaTools at none against Calculator Plus Pro's 1. ChromaTools also leads on update cadence (daily vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator Plus Pro sells 1 one-off in-app purchase. ChromaTools asks for nothing beyond the download.

Calculator Plus Pro ships an update every 7 months, ChromaTools daily. The most recent releases landed on September 24, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Calculator Plus Pro | ChromaTools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (33 ratings)](https://appshunter.io/ios/app/calculator-plus-pro/id1255515239/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Free | — |
| Size | 9 MB | 62 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [政 王](https://appshunter.io/developer/962633214) | [Oliver Ditty](https://appshunter.io/developer/1869542323) |

## What reviewers say

### Calculator Plus Pro

[App page](https://appshunter.io/ios/app/calculator-plus-pro/id1255515239)

Enhance your iPad experience with this advanced calculator. It offers intelligent calculations and a clean, ad-free interface, making complex math tasks simpler and more efficient.

**Highlights:** Intelligent calculations, Complex math support, Ad-free experience, Optimized for iPad

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

**In-app purchases (1)**

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


### ChromaTools

[App page](https://appshunter.io/ios/app/chromatools/id6757858032)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Plus Pro free?

Calculator Plus Pro is free to download, with in-app purchases available.

### Is ChromaTools free?

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

### Do Calculator Plus Pro or ChromaTools have ads?

Neither Calculator Plus Pro nor ChromaTools shows ads.

### Which is updated more often, Calculator Plus Pro or ChromaTools?

Calculator Plus Pro ships an update every 7 months, and ChromaTools daily. Most recently, Calculator Plus Pro was updated on September 24, 2026 and ChromaTools on September 7, 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.*