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Best File Conversion Apps

250+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated September 2026

If you already know The Document Converter, this is the deeper bench. 250+ file conversion apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top File Conversion Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1The Document ConverterThe Document ConverterFree4.7★ (5.9K)NoYesSep 2026
2File Converter, Online-ConvertFile Converter, Online-ConvertFree5.0★ (15)NoNoSep 2026
3The Video ConverterThe Video ConverterFree4.5★ (10K)NoYesSep 2026
4Image Converter: JPEG PDF HEICImage Converter: JPEG PDF HEICFree4.7★ (9K)NoYesSep 2026
5PDF Converter - DocumentPDF Converter - DocumentFree—NoYesMay 2026
6File Conversion ToolsFile Conversion ToolsFree2.0★ (7)NoNoSep 2026
7File Conversion: Word To PDFFile Conversion: Word To PDFFree—NoYesJun 2026
8Convert-File&Image&Music&MediaConvert-File&Image&Music&MediaFree—NoYesMay 2026

Top Picks for File Conversion

The Document Converter#1

The Document Converter by Float Tech, LLC

Convert to PDF, DOCX, JPG, etc
Editor's Choice
🔧 Utilities
4.7😞(5.9K ratings)
FreeIn-App Purchases
The Document Converter screenshot 1
The Document Converter screenshot 2
The Document Converter screenshot 3
The Document Converter screenshot 4
The Document Converter screenshot 5

Effortlessly transform files into various document and image formats like PDF, DOCX, and JPG. Simply select your input, choose the desired output, and convert in seconds. Save, share, or open your converted files directly in other applications.

What We Love

  • 🚀 Fast and efficient
  • 👍 Easy to use
  • 💡 Useful for document conversion
  • 🚀 Reliable and accurate

Room to Improve

  • 🔒 Requires subscription for full functionality
  • 🐛 Conversion issues with certain file formats
  • 🔒 Misleading about free trial
  • 🐛 Inconsistent performance
File Converter, Online-Convert#2

File Converter, Online-Convert by QaamGo Media GmbH

Convert files
Strong Contender
📊 Productivity
5.0😞(15 ratings)
Free
File Converter, Online-Convert screenshot 1
File Converter, Online-Convert screenshot 2
File Converter, Online-Convert screenshot 3
File Converter, Online-Convert screenshot 4

Easily convert a wide range of file types, including audio, video, images, documents, and ebooks, to popular formats. This free online tool processes your files in the cloud, saving battery and allowing multitasking.

What We Love

  • 🚀 Fast conversion speeds
  • 💰 Free service
  • 👍 Website version works reliably
  • 📱 User-friendly interface
  • 🎯 Effective for specific formats (PDF, eBook conversions)
  • 🔗 Direct file sharing capabilities

Room to Improve

  • 🐛 App frequently fails to convert files
  • ⚠️ Inconsistent performance across platforms
  • 📱 Poor iOS app implementation
  • 🔌 Requires internet connection (no offline support)
  • 🗂️ Difficulty accessing cloud storage files
  • ♿ Inaccessible for users with accessibility needs
  • ⏱️ No app updates in 2+ years
  • 🎨 Poor screen formatting on mobile devices
  • 💳 Unexpected payment charges
  • 🔍 File location issues after conversion
The Video Converter#3

The Video Converter by Float Tech, LLC

Convert to MP4, MOV, and MP3
Worth Considering
🔧 Utilities
4.5😞(10K ratings)
FreeIn-App Purchases
The Video Converter screenshot 1
The Video Converter screenshot 2
The Video Converter screenshot 3
The Video Converter screenshot 4
The Video Converter screenshot 5

Easily transform video and audio files into a wide range of formats like MP4, MOV, and MP3. Select your input, choose an output, and convert in seconds. Save, share, or view your converted files directly from the app.

What We Love

  • 👍 Easy to use
  • 🚀 Fast conversion
  • 💡 Variety of conversion options
  • 🔒 Secure file handling

Room to Improve

  • 🐛 Crashes and freezes
  • 🔒 Concerns about privacy and data handling
  • 💰 Paywall for basic features
  • 🔋 Slow conversion speeds

More File Conversion apps to explore

FAQ about File Conversion

What are the best file conversion apps for iPhone?
The Document Converter tops our file conversion apps ranking as of September 2026, with a 4.7-star average from 5.9K App Store ratings, and it's free to download.
Yes — 20 of the top file conversion apps we rank are free to download, including The Document Converter and File Converter, Online-Convert.
The Document Converter has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ file conversion apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The Document Converter app allows you to easily convert files into a wide range of document and image formats. You can select an input file, choose from numerous output formats like PDF, DOCX, or JPG, and then convert it within seconds. The converted files can then be saved, shared, or opened directly in other applications.
Key features include support for converting to and from dozens of popular formats including documents (DOCX, PDF, RTF), ebooks (EPUB, MOBI), images (JPG, PNG), spreadsheets (XLSX), and presentations (PPTX). It also offers an in-app file browser, AirDrop support, and both cloud-based and local conversion options for speed and convenience.

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