# Force Unit Converter vs Image File Converter

The clearest difference is in-app purchases: Force Unit Converter at none against Image File Converter's 2. Force Unit Converter also leads on iOS requirement (15.6 vs 17.6). Image File Converter's advantage is ads (none vs shown) and update cadence (monthly vs every 10 months). On price and device support there is nothing between them.

Both are free to download. Image File Converter sells 2 in-app purchases, starting at $0.99 per 7 days. Force Unit Converter asks for nothing beyond the download.

Force Unit Converter ships an update every 10 months, Image File Converter monthly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Force Unit Converter | Image File Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/force-unit-converter/id1415262579/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 6 MB | 1 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [Maksym Kiryanov](https://appshunter.io/developer/1628335944) |

## What reviewers say

### Force Unit Converter

[App page](https://appshunter.io/ios/app/force-unit-converter/id1415262579)

Easily convert force measurements between eight different units. Input a value and select the desired unit to see conversions for newton, dyne, kilogram-force, and more. This utility simplifies complex force calculations.

**Highlights:** Converts 8 types of force units, Supports Newton (N), kN, dyne (dyn), Includes kilogram-force (kgf), gf, tf, Converts pound-force (lbf) and poundal (pdl), Simple input and unit selection

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

**In-app purchases:** none


### Image File Converter

[App page](https://appshunter.io/ios/app/image-file-converter-heic-pdf/id6751719645)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $0.99 | per 7 days |
| Lifetime Premium | $4.99 | one-time |


## Frequently asked questions

### Is Force Unit Converter free?

Force Unit Converter is free to download, with no in-app purchases.

### Is Image File Converter free?

Image File Converter is free to download, with in-app purchases available.

### Do Force Unit Converter or Image File Converter have ads?

Force Unit Converter shows ads; Image File Converter does not.

### Which is updated more often, Force Unit Converter or Image File Converter?

Force Unit Converter ships an update every 10 months, and Image File Converter monthly. Most recently, Force Unit Converter was updated on November 3, 2026 and Image File Converter on November 5, 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.*