# Conversion Calculator Units vs Time Unit Converter Pro

The clearest difference is price: Conversion Calculator Units at Free against Time Unit Converter Pro's $0.99. Conversion Calculator Units also leads on ratings volume (5K vs 2) and update cadence (every 2 months vs every 7 months). Time Unit Converter Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Conversion Calculator Units is free to download; Time Unit Converter Pro costs $0.99 up front. Conversion Calculator Units sells 1 one-off in-app purchase. Time Unit Converter Pro asks for nothing beyond the download.

Time Unit Converter Pro holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 82% of Conversion Calculator Units's written reviews are positive against 100% of Time Unit Converter Pro's.

Conversion Calculator Units ships an update every 2 months, Time Unit Converter Pro every 7 months. The most recent releases landed on October 1, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Time Unit Converter Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/time-unit-converter-pro/id6447488509/reviews)** |
| Number of ratings | **5K** | 2 |
| Positive reviews | 82.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 41 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Gustav Gutsche](https://appshunter.io/developer/1661525357) |

## What reviewers say

### Conversion Calculator Units

[App page](https://appshunter.io/ios/app/conversion-calculator-units/id727632233)

This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.

**Highlights:** Converts over 140 units, Supports 12 conversion categories, Customizable themes, Drag and set unit positions, Add units to favorites, Share converted units via email

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

**In-app purchases (1)**

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

**What reviewers like**

- 👍 User-friendly
- 🚀 Easy to use
- 💡 Helpful for learning metric system
- 👍 Great for conversions
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Ads disrupt usage
- 🐛 Difficult to change units
- 🐛 Lacks portrait mode
- 🐛 Upside-down orientation issues
- 🐛 Cluttered UI design

**Reported bugs**

- Ads not removed after purchase
- Incorrect unit conversions

**Requested features**

- Add pressure conversion units
- Include a basic calculator function
- Implement multi-language support
- Allow customization of unit order


### Time Unit Converter Pro

[App page](https://appshunter.io/ios/app/time-unit-converter-pro/id6447488509)

Instantly convert between standard time formats and decimal hours. Compare global time zones with an interactive world map. Ideal for professionals, freelancers, and students needing precise time calculations for timesheets, billing, or international scheduling.

**Highlights:** Convert hours:minutes to decimal hours, Calculate elapsed time, Transform minutes to hours, Visual time zone converter with world map, Customizable decimal places, Supports multiple languages, Light/dark modes

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

**In-app purchases:** none


## Frequently asked questions

### Is Conversion Calculator Units free?

Conversion Calculator Units is free to download, with in-app purchases available.

### Is Time Unit Converter Pro free?

Time Unit Converter Pro costs $0.99, with no in-app purchases.

### Which has better reviews, Conversion Calculator Units or Time Unit Converter Pro?

Time Unit Converter Pro is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Time Unit Converter Pro averages 5.0 from 2 ratings.

### Do Conversion Calculator Units or Time Unit Converter Pro have ads?

Conversion Calculator Units shows ads; Time Unit Converter Pro does not.

### Which is updated more often, Conversion Calculator Units or Time Unit Converter Pro?

Conversion Calculator Units ships an update every 2 months, and Time Unit Converter Pro every 7 months. Most recently, Conversion Calculator Units was updated on October 1, 2026 and Time Unit Converter Pro on August 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*