# File Converter vs Lens Smudge Detection

The clearest difference is in-app purchases: Lens Smudge Detection at none against File Converter's 10. Lens Smudge Detection also leads on update cadence (weekly vs every 3 months). File Converter's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.5). On price and ads there is nothing between them.

Both are free to download. File Converter sells 9 in-app purchases, starting at $1.49 per 7 days. Lens Smudge Detection asks for nothing beyond the download.

File Converter ships an update every 3 months, Lens Smudge Detection weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | File Converter | Lens Smudge Detection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (480 ratings)](https://appshunter.io/ios/app/file-converter/id486538934/reviews)** | — |
| Number of ratings | **480** | — |
| Positive reviews | 47.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 83 MB | 42 MB |
| Requires iOS | **15.6** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ice Cold Apps](https://appshunter.io/developer/468552068) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### File Converter

[App page](https://appshunter.io/ios/app/file-converter/id486538934)

This app converts files between thousands of formats, saving you time and battery. It leverages cloud processing for faster conversions and allows you to continue using your device. Supports video, ebook, document, audio, image, 3D, CAD, and many other file types.

**Highlights:** Supports over 2,000 source formats, Cloud-based conversion for speed and battery saving, Video, ebook, document, audio, and image conversion, 3D, CAD, and scientific file format support, Archive compression and extraction, Metadata viewing and deletion, File repair for common formats

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $1.49 | per 7 days |
| Full Access | $1.99 | per 7 days |
| Full Access | $2.49 | per month |
| Full Access | $3.99 | per month |
| Full Access | $4.99 | per month |
| Full Access | $30.99 | per year |
| Full Access | $38.99 | per year |
| Full Access | $39.99 | per year |
| Full Access | $49.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Lots of conversion options
- 👍 Useful for school/work
- 🚀 Fast conversions

**What reviewers complain about**

- 🐛 Ads/watch video button doesn't work
- 💰 Paywall for premium features
- 🐛 Conversion issues/errors
- 🐛 Saved files not accessible
- 🐛 Compatibility issues

**Reported bugs**

- Conversion errors
- Saved files disappearing
- Incompatibility with newer iOS versions
- Ad/video button not working

**Requested features**

- Increase file size limit
- Add more file format support
- Improve sharing/saving options
- Fix ad/video button


### Lens Smudge Detection

[App page](https://appshunter.io/ios/app/lens-smudge-detection/id6771600873)

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

**In-app purchases:** none


## Frequently asked questions

### Is File Converter free?

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

### Is Lens Smudge Detection free?

Lens Smudge Detection is free to download, with no in-app purchases.

### Do File Converter or Lens Smudge Detection have ads?

Both File Converter and Lens Smudge Detection show ads.

### Which is updated more often, File Converter or Lens Smudge Detection?

File Converter ships an update every 3 months, and Lens Smudge Detection weekly. Most recently, File Converter was updated on November 6, 2026 and Lens Smudge Detection on October 31, 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.*