PixConvert vs WhatDiff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PixConvert
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PixConvert turns your images and PDFs into the exact format you need—fast. Convert HEIC, JPG, PNG, and PDF in seconds with a clean, simple interface. Enjoy bidirectional conversion (Image ⇄ PDF), quality controls, and reliable results. Why PixConvert Lightning-fast conversions with a minimal, focused UI Bidirectional: turn photos into PDFs and extract images from PDFs High-quality output with adjustable resolution Batch support to save time on multiple files Private by design: stays on your device whenever possible What you can do Share photos as PDFs in one tap Convert HEIC to JPG/PNG for universal compatibility Extract images from a PDF for editing or reuse Organize receipts, notes, and scans cleanly as PDFs How it works Select images or a PDF Choose target format (JPG/PNG/PDF) Adjust quality if needed Convert and share or save—done Note: Some advanced features may require network access (e.g., very large files or cloud imports), but your content stays yours.
WhatDiff
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WhatDiff – Compare Files with Precision WhatDiff is a powerful file comparison app that helps you quickly identify differences between files across multiple formats. It supports photos, videos, audio, documents, and other file types from your Photo Library, Files app, and cloud storage platforms. With built-in MD5 checksum verification, detailed file attributes, and advanced comparison tools like line-by-line document diff, WhatDiff gives you deep insight into every file. #######Smart Comparison by File Type ---Photos • Use the slider to compare photo content. View and compare detailed metadata, including: • File name, size, MD5 • Created & modified dates • Dimensions, resolution • Color space & color profile • Device make & model • Exposure time, ISO, focal length, F-number • Flash, metering mode, white balance • Content creator • GPS location (latitude & longitude) ---Videos • Compare video files with rich technical details: • File name, size, MD5 • Created & modified dates • Dimensions & codecs • Duration • Color profile • Audio channels • GPS location (latitude & longitude) ---Audio Analyze and compare audio files: • File name, size, MD5 • Created & modified dates • Codecs • Duration • Audio channels ---Documents • Go beyond basic comparison with content analysis: • File name, size, MD5 • Created & modified dates • Word, character, and line counts • Content similarity • Content preview • Highlighted differences (line-by-line) ---Other File Types • For all other formats, WhatDiff provides: • File name, size, MD5 • Created & modified dates ###Why WhatDiff### • Supports multiple file sources (Photos, Files, Cloud) • Deep metadata comparison • Accurate checksum verification • Clear, structured results for quick insights Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: PixConvert at none against WhatDiff's 3. PixConvert also leads on update cadence (every 3 weeks vs every 5 months) and iOS requirement (13.0 vs 16.4). WhatDiff's advantage is ads (none vs shown). On price and device support 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
Both are free to download. WhatDiff sells 3 in-app purchases, starting at $2.99 per month. PixConvert asks for nothing beyond the download.
PixConvert ships an update every 3 weeks, WhatDiff every 5 months. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.
| Parameter | PixConvert | WhatDiff |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 38 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Doublew | 栋 陈 |
In-app purchases
PixConvert
No in-app purchases
WhatDiff
- WhatDiff Month Subscription$2.991 Month
- WhatDiff Annual Subscription$12.991 Year
- WhatDiff Lifetime License$24.99









