Comparison

Image Converter vs PhotoBackup External

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Image Converter

Features
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FormatFlow – Batch Image Converter, Compressor & Photo Toolkit FormatFlow is your essential iOS app for fast, simple, and private photo editing. Effortlessly convert, compress, resize, and manage your photos in batches — all from your iPhone or iPad, with full photo library integration. Designed for speed, privacy, and ease of use, FormatFlow gives you everything you need to edit smarter, faster, and with complete control. Key Features # Batch Image Processing (Need Premium Subscription) • Batch convert, compress, and upscale multiple images at once. Save time with efficient batch workflows, progress tracking, and error recovery. • Merge multiple images into a single, high-quality PDF. # Smart Format Conversion • Convert photos between JPEG, PNG, HEIC, HEIF, and PDF • Preserve image quality and important photo details • Keep all your photo metadata intact • Perfect for sharing, storage, and cross-platform compatibility # Premium Image Enhancement • Enlarge images using AI CoreML- powered upscaling . • Upscale photos to stunning 4K and 8K quality • Perfect for printing, professional presentations, and digital displays • Real-time preview of enhanced photos • Ideal for restoring old photos or improving low-resolution images # Intelligent Photo Compression • Reduce file size by up to 90% while keeping photos crystal clear • Smart compression automatically balances quality and size • Perfect for email attachments, messaging, and cloud storage • Free up space on your iPhone without losing photo quality # Image Resizing • Resize photos to any dimension with perfect clarity • Ready-made presets for Instagram, Facebook, Twitter, and LinkedIn • Custom sizes for websites, printing, and professional use • Maintain aspect ratios automatically • Create perfect thumbnails and profile pictures # Photo Library Integration • Seamlessly access and manage your photos. Save processed images directly into your albums. # Privacy First • All image processing is done locally on your device for maximum privacy. An internet connection is required only for app logging and future ad services. • 100% offline processing - your photos never leave your device • No cloud uploads, no data collection • Complete control over your photos # Beautiful & Easy to Use • Clean, modern interface designed for iOS • Quick actions for common tasks • Real-time previews of all changes • Multi Themes support • Premium themes available # Subscription Support • Subscribe for unlimited photo edits and exclusive access to powerful batch processing, image upscaling, format conversion, and theme options — with no ads. # Why Choose FormatFlow? • Batch convert, resize, and compress images effortlessly • Supports JPEG, PNG, HEIC, HEIF, PDF, and more • Fast offline photo processing for speed and privacy • Unlimited photo editing and batch features with Premium • No data collection, no unnecessary tracking • Simple to use, modern design, built for iPhone and iPad # Perfect for: • Social media creators and influencers • Photographers and content creators • Business professionals • Anyone who wants to organize and optimize their photo collection • Web developers and designers • Digital artists and hobbyists Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://formatflow.digitalrockhub.com/privacy.html

About

PhotoBackup External

Easily back up your iPhone and iPad photos directly to a USB drive. Secure your memories offline and free up device storage without needing iCloud or a computer. Enjoy full control over your photo library with a simple and reliable solution.

Highlights
  • Direct backup to external USB drives
  • No iCloud or computer required
  • Fast and reliable photo export
  • Clear progress tracking
  • Smart space verification before backup
  • Ideal for large photo libraries
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PhotoBackup External makes it incredibly easy to back up all your iPhone and iPad photos directly to an external USB drive — no iCloud, no computer, no subscriptions. Whether you want to free up space, secure your memories offline, or create a full archive of your photo library, PhotoBackup External gives you full control over your data. Why users love PhotoBackup External • Direct backup to external drives Connect any compatible USB-C or Lightning external drive and export your entire photo library in just a few taps. • No iCloud required Keep your photos offline, private, and fully under your control. • Fast and reliable export The app scans your library, calculates required space, and safely copies your photos without interruptions. • Clear progress tracking See exactly how many files have been exported and how much time remains. • Smart space check PhotoBackup External verifies available space on the drive before starting the backup, preventing failed transfers. • Perfect for large libraries Ideal for users with tens of thousands of photos who need a simple and dependable solution. Built for privacy Your photos never leave your device. The app performs backup locally and does not upload data anywhere. Simple. Safe. Offline. Free up storage, protect your memories, and keep full ownership of your photo library — all with a single app.

Screenshots

Image Converter4 screens
PhotoBackup External4 screens

Verdict

The call

The clearest difference is in-app purchases: PhotoBackup External at none against Image Converter's 4. PhotoBackup External also leads on update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Image Converter sells 4 in-app purchases, starting at $1.99 per 7 days. PhotoBackup External asks for nothing beyond the download.

UpkeepUpdate frequency

Image Converter ships an update every 2 months, PhotoBackup External weekly. The most recent releases landed on September 11, 2026 and September 18, 2026 respectively.

Scorecard2 real differences · 8 level
Image Converter versus PhotoBackup External: the parameters behind the verdict, then further details
ParameterImage ConverterPhotoBackup External
PriceFreeFree
Rating—4.8 (20 ratings) — better
Positive reviews—80.0% of reviews
Number of ratings—20 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.6
Further details — not scored
Size9 MB3 MB
Age rating4+4+
DeveloperMahmoud SulimanFastask OU

Customer experience

Image Converter

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

PhotoBackup External

All ratings20 ratings
Positive95.0%
Neutral0.0%
Negative5.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

4 purchases

Image Converter

Subscriptions3
  • Weekly Plan3 Days trial$1.997 Days
  • Format Flow Monthly Plan3 Days trial$4.991 Month
  • Annual Plan$9.991 Year
One-time1
  • Lifetime Access$19.99
None

PhotoBackup External

No in-app purchases

Questions

Is Image Converter free?
Image Converter is free to download, with in-app purchases available.
Is PhotoBackup External free?
PhotoBackup External is free to download, with no in-app purchases.
Do Image Converter or PhotoBackup External have ads?
Neither Image Converter nor PhotoBackup External shows ads.
Which is updated more often, Image Converter or PhotoBackup External?
Image Converter ships an update every 2 months, and PhotoBackup External weekly. Most recently, Image Converter was updated on September 11, 2026 and PhotoBackup External on September 18, 2026.

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