# Conversion Calculator Units vs Safe Crossing

The clearest difference is rating: Conversion Calculator Units at 4.7 against Safe Crossing's 1.0. Conversion Calculator Units also leads on update cadence (every 2 months vs every 67 months) and ratings volume (5K vs 1). Safe Crossing's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Conversion Calculator Units sells 1 one-off in-app purchase. Safe Crossing asks for nothing beyond the download.

Conversion Calculator Units holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 1, so its average is the more settled of the two.

Conversion Calculator Units ships an update every 2 months, Safe Crossing every 67 months. The most recent releases landed on October 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Safe Crossing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/safe-crossing/id1522141252/reviews) |
| Number of ratings | **5K** | 1 |
| Positive reviews | 82.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 67 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 41 MB | 81 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [CYBER ICE STUDIO COMPANY LIMITED](https://appshunter.io/developer/1802609812) |

## 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


### Safe Crossing

[App page](https://appshunter.io/ios/app/safe-crossing/id1522141252)

Enhance visibility for pedestrians and runners at night. This utility helps drivers notice individuals on crosswalks and makes nighttime activities safer by increasing awareness.

**Highlights:** Nighttime pedestrian visibility, Runner safety enhancement, Driver attention aid, Crosswalk safety

**Features:** macOS Compatibility

**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 Safe Crossing free?

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

### Which has better reviews, Conversion Calculator Units or Safe Crossing?

Conversion Calculator Units is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Safe Crossing averages 1.0 from 1 ratings.

### Do Conversion Calculator Units or Safe Crossing have ads?

Conversion Calculator Units shows ads; Safe Crossing does not.

### Which is updated more often, Conversion Calculator Units or Safe Crossing?

Conversion Calculator Units ships an update every 2 months, and Safe Crossing every 67 months. Most recently, Conversion Calculator Units was updated on October 1, 2026 and Safe Crossing on September 16, 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.*