# Smart Unit Conversion vs ToolBox+ All

The clearest difference is in-app purchases: ToolBox+ All at none against Smart Unit Conversion's 1. ToolBox+ All also leads on ads (none vs shown) and update cadence (every 7 months vs every 15 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Smart Unit Conversion sells 1 in-app purchase, starting at $1.99 per year. ToolBox+ All asks for nothing beyond the download.

Smart Unit Conversion ships an update every 15 months, ToolBox+ All every 7 months. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Smart Unit Conversion | ToolBox+ All |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Every 7 months** |
| Monetization | — | Free |
| Size | 41 MB | 17 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Yui Lau](https://appshunter.io/developer/1791465155) | [Kyungjin Lee](https://appshunter.io/developer/572393811) |

## What reviewers say

### Smart Unit Conversion

[App page](https://appshunter.io/ios/app/smart-unit-conversion/id1643381985)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year | $1.99 | per year |


### ToolBox+ All

[App page](https://appshunter.io/ios/app/toolbox-plus-all-in-one/id6504269577)

This app offers 12 essential utilities in one place, including a ruler, level, compass, flashlight, unit converter, and various timers. It's designed for convenience and efficiency in daily tasks, from measurements to event tracking.

**Highlights:** Digital ruler with adjustable units, Precision sensor-based level, Accurate digital compass, Flashlight with SOS mode, Comprehensive unit converter, Multiple timer and stopwatch functions, D-DAY countdown for special occasions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Unit Conversion free?

Smart Unit Conversion is free to download, with in-app purchases available.

### Is ToolBox+ All free?

ToolBox+ All is free to download, with no in-app purchases.

### Do Smart Unit Conversion or ToolBox+ All have ads?

Smart Unit Conversion shows ads; ToolBox+ All does not.

### Which is updated more often, Smart Unit Conversion or ToolBox+ All?

Smart Unit Conversion ships an update every 15 months, and ToolBox+ All every 7 months. Most recently, Smart Unit Conversion was updated on September 18, 2026 and ToolBox+ All on June 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.*