# Color Calc+ vs Pro OnTime

Color Calc+ and Pro OnTime are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Color Calc+ ships an update weekly, Pro OnTime fortnightly. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Color Calc+ | Pro OnTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/color-calc-plus/id6443727733/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 58 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jerry Watson](https://appshunter.io/developer/1647846813) | [SIDEREAL TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1481462615) |

## What reviewers say

### Color Calc+

[App page](https://appshunter.io/ios/app/color-calc-plus/id6443727733)

This utility app provides a straightforward calculator with a history of past computations. It also offers temperature conversion tools and the ability to easily copy the most recent result.

**Highlights:** Calculator, Calculation history, Temperature conversion, Copy last result

**Features:** macOS Compatibility

**In-app purchases:** none


### Pro OnTime

[App page](https://appshunter.io/ios/app/pro-ontime/id6499000843)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Color Calc+ free?

Color Calc+ is free to download, with no in-app purchases.

### Is Pro OnTime free?

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

### Do Color Calc+ or Pro OnTime have ads?

Neither Color Calc+ nor Pro OnTime shows ads.

### Which is updated more often, Color Calc+ or Pro OnTime?

Color Calc+ ships an update weekly, and Pro OnTime fortnightly. Most recently, Color Calc+ was updated on October 9, 2026 and Pro OnTime on October 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.*