# Toolbox™ vs Conversion Calculator Units

The clearest difference is price: Conversion Calculator Units at Free against Toolbox™'s $1.99. Toolbox™'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

Conversion Calculator Units is free to download; Toolbox™ costs $1.99 up front. Conversion Calculator Units sells 1 one-off in-app purchase. Toolbox™ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Toolbox™ against 4.7 for Conversion Calculator Units. Both are backed by a comparable volume of ratings — 4.3K and 5K respectively. Written reviews split almost evenly too, at 82% and 82% positive.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Toolbox™ | Conversion Calculator Units |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.7 (4.3K ratings)](https://appshunter.io/ios/app/toolbox/id615380696/reviews) | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) |
| Number of ratings | 4.3K | **5K** |
| Positive reviews | **82.5% of reviews** | 82.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 46 MB | 41 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tue Nguyen Minh](https://appshunter.io/developer/434811167) | [RV AppStudios LLC](https://appshunter.io/developer/340181308) |

## What reviewers say

### Toolbox™

[App page](https://appshunter.io/ios/app/toolbox/id615380696)

This app provides a collection of 12 essential utility tools for your iPhone, including a flashlight, magnifier, unit converter, and more. It offers a versatile and functional solution for everyday tasks and measurements.

**Highlights:** Adjustable flashlight with compass, Magnifying glass with light, Unit converter with currency exchange, Tip calculator and bill splitter, Fraction calculator, Stopwatch with 1/100 second accuracy, Spirit and surface level, Ruler with sliders, Protractor, Battery information

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Useful collection of tools
- 🚀 Efficient and easy to use
- 💡 Innovative features like magnifier and flashlight
- 🔍 Accurate measurement tools
- ⚙️ Versatile utility app

**What reviewers complain about**

- 🐛 Ruler not calibrated for newer iPhone models
- 🐛 Certain tools not functioning as expected
- 🔒 Upgrade issues with locked features
- 🔋 Battery drain issues with some tools
- 🤔 Confusing or lacking instructions

**Reported bugs**

- Ruler measurements are inaccurate
- Magnifier tool not working
- Protractor not calibrating correctly
- Flashlight and strobe mode issues
- Currency converter not functioning

**Requested features**

- Add decimal point to calculator
- Improve accuracy of ruler and measurement tools
- Implement unit conversion for photo measurement
- Add countdown timer feature
- Optimize app for latest iPhone models


### 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


## Frequently asked questions

### Is Toolbox™ free?

Toolbox™ costs $1.99, with no in-app purchases.

### Is Conversion Calculator Units free?

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

### Which has better reviews, Toolbox™ or Conversion Calculator Units?

Toolbox™ and Conversion Calculator Units are both rated 4.7 out of 5 on the App Store, from 4.3K and 5K ratings respectively.

### Do Toolbox™ or Conversion Calculator Units have ads?

Conversion Calculator Units shows ads; Toolbox™ does not.

### Which is updated more often, Toolbox™ or Conversion Calculator Units?

Toolbox™ ships an update every 2 months, and Conversion Calculator Units every 2 months. Most recently, Toolbox™ was updated on September 27, 2026 and Conversion Calculator Units on September 28, 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.*