# Unit Converters in ft lb oz vs Smart Unit Conversion

The clearest difference is iOS requirement: Smart Unit Conversion at 13.4 against Unit Converters in ft lb oz's 15. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Unit Converters in ft lb oz sells 1 one-off in-app purchase and Smart Unit Conversion sells 1 in-app purchase, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

Unit Converters in ft lb oz ships an update every 8 months, Smart Unit Conversion every 15 months. The most recent releases landed on September 19, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Unit Converters in ft lb oz | Smart Unit Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (130 ratings)](https://appshunter.io/ios/app/unit-converters-in-ft-lb-oz/id531287907/reviews)** | — |
| Number of ratings | **130** | — |
| Positive reviews | 47.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 8 months** | Every 15 months |
| Monetization | Ad-supported | — |
| Size | 11 MB | 41 MB |
| Requires iOS | 15 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Yui Lau](https://appshunter.io/developer/1791465155) |

## What reviewers say

### Unit Converters in ft lb oz

[App page](https://appshunter.io/ios/app/unit-converters-in-ft-lb-oz/id531287907)

This utility app offers a straightforward way to convert various units of measurement, including temperature, speed, length, weight, and capacity. It displays results instantly as you input numbers, supporting common conversions like Fahrenheit to Celsius and pounds to kilograms.

**Highlights:** Instant conversion results, Temperature conversion (F/C), Speed conversion (mph/km/h/m/s), Length conversion (ft/in/cm), Weight conversion (lb/kg), Capacity conversion (oz/g/fl oz/ml)

**Features:** Vision Pro support

**In-app purchases (1)**

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


### 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 |


## Frequently asked questions

### Is Unit Converters in ft lb oz free?

Unit Converters in ft lb oz is free to download, with in-app purchases available.

### Is Smart Unit Conversion free?

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

### Do Unit Converters in ft lb oz or Smart Unit Conversion have ads?

Both Unit Converters in ft lb oz and Smart Unit Conversion show ads.

### Which is updated more often, Unit Converters in ft lb oz or Smart Unit Conversion?

Unit Converters in ft lb oz ships an update every 8 months, and Smart Unit Conversion every 15 months. Most recently, Unit Converters in ft lb oz was updated on September 19, 2026 and Smart Unit Conversion on May 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.*