# Calculator COLORS vs Calta

The clearest difference is review sentiment: Calta at 100% against Calculator COLORS's 70%. Calta also leads on update cadence (every 3 days vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Calculator COLORS ships an update every 2 months, Calta every 3 days. The most recent releases landed on August 16, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Calculator COLORS | Calta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/calculator-colors/id937249366/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 5 MB | 23 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [newforestar co,.ltd](https://appshunter.io/developer/293922531) | [Hiroki Oka](https://appshunter.io/developer/1464653539) |

## What reviewers say

### Calculator COLORS

[App page](https://appshunter.io/ios/app/calculator-colors/id937249366)

This utility app offers a straightforward calculator with a customizable flat design. Users can select from five color themes and choose a preferred function key from options like percentage or tax. It also features calculation history and clipboard integration for easy data transfer.

**Highlights:** Customizable flat design colors, Choice of function keys (% , TAX, √￣, right shift), Calculation history, Copy result to clipboard, Optimal layout for fast calculations, 16-digit display

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

**In-app purchases:** none


### Calta

[App page](https://appshunter.io/ios/app/calta/id1499265833)

This calculator app offers advanced features like equation display, calculation history, and redo/undo functionality for easier use. Customize backgrounds and button shapes, and perform tax calculations with adjustable rates. It supports up to 20 digits and respects order of operations.

**Highlights:** Equation display, Calculation history, Redo and Undo functions, Customizable background, Customizable button shape, Tax calculation, Order of operations support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator COLORS free?

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

### Is Calta free?

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

### Do Calculator COLORS or Calta have ads?

Both Calculator COLORS and Calta show ads.

### Which is updated more often, Calculator COLORS or Calta?

Calculator COLORS ships an update every 2 months, and Calta every 3 days. Most recently, Calculator COLORS was updated on August 16, 2026 and Calta on June 4, 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.*