# 2 Field % Calc vs Color Temperature Comparison

The clearest difference is review sentiment: 2 Field % Calc at 100% against Color Temperature Comparison's 0%. 2 Field % Calc also leads on price (Free vs $2.99). Color Temperature Comparison's advantage is iOS requirement (13 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

2 Field % Calc is free to download; Color Temperature Comparison costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

2 Field % Calc ships an update every 30 months, Color Temperature Comparison every 42 months. The most recent releases landed on August 21, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 2 Field % Calc | Color Temperature Comparison |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/2-field-calc/id454060465/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 30 months** | Every 42 months |
| Monetization | **Free** | Paid |
| Size | 1 MB | 2 MB |
| Requires iOS | 15.6 | **13** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [4us](https://appshunter.io/developer/320142471) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### 2 Field % Calc

[App page](https://appshunter.io/ios/app/2-field-calc/id454060465)

Calculate percentages between two numbers for various uses, including resizing images and determining magnification. Ideal for DTP and web designers needing quick calculations.

**Highlights:** Calculate percent between two numbers, Image resizing by percentage, Magnification calculation, Useful for DTP and web designers

**Features:** macOS Compatibility

**In-app purchases:** none


### Color Temperature Comparison

[App page](https://appshunter.io/ios/app/color-temperature-comparison/id1640610964)

This tool allows users to compare different color temperatures on the fly. Input Kelvin values to see corresponding RGB and HEX color codes, along with the color source. It's useful for understanding light bulb types and their applications in various fields.

**Highlights:** Compare color temperatures in real-time, Input Kelvin values, View RGB and HEX color codes, Identify color source, Understand light bulb color types

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

**In-app purchases:** none


## Frequently asked questions

### Is 2 Field % Calc free?

2 Field % Calc is free to download, with no in-app purchases.

### Is Color Temperature Comparison free?

Color Temperature Comparison costs $2.99, with no in-app purchases.

### Do 2 Field % Calc or Color Temperature Comparison have ads?

Neither 2 Field % Calc nor Color Temperature Comparison shows ads.

### Which is updated more often, 2 Field % Calc or Color Temperature Comparison?

2 Field % Calc ships an update every 30 months, and Color Temperature Comparison every 42 months. Most recently, 2 Field % Calc was updated on August 21, 2026 and Color Temperature Comparison on September 15, 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.*