Available on Mac App Store & Microsoft Store

The Pro-Level
Diff Comparison Tool
for Everyone.
$17 one-time

Transform Your Diff Workflow!
Tired of hunting for changes in documents?
Worried about missing important edits?
Diff Pro Max solves these problems instantly.

✓ Text comparison is always free ✓ No credit card required ✓ Install in 1 minute
Diff Pro Max - Diff Comparison
Before: main.js
1 class UserService {
2 async getUser(id) {
3 return db.users.find(id);
4 }
5 }
After: main.js
1 class UserService {
2 async getUser(id, options = {}) {
3 const user = await db.users.find(id);
4 if (!user) throw new Error('User not found');
5 return options.cache ? cache.set(id, user) : user;
6 }
7 }
USE CASES

Perfect For These Scenarios

Solving real-world development challenges

📋

Deployment Preparation

"Bundle all changed files from last month"
→ 2-hour task done in 3 minutes

👀

Code Review

"Too many changes in this PR to review"
→ Beautiful syntax highlighting for 150+ languages

🎨

Design Verification

"What exactly changed in this design?"
→ Overlay view reveals even subtle changes

🔄

Version Control

"Which files were updated?"
→ Compare entire folders at once

🎵

Audio Comparison

"Check differences before and after mastering"
→ Visual waveform comparison

FEATURES

5 Powerful Comparison Modes

Core features are free and fully usable.
Pro version unlocks unlimited access to everything.

Diff Pro Max Main Menu

5 Comparison Modes

Choose from text, folder, image, audio, and deployment data creation modes

Text Comparison

High-Precision Text Comparison

Syntax highlighting for 150+ languages

Folder Comparison

Folder Structure Comparison

Visualize directory structure changes

Deployment Data Creation

Auto Deployment Data Creation

Extract changed files by date range

Image Comparison

Image Overlay Comparison

Spot even the smallest design changes

Audio Comparison

Audio Waveform Comparison

Visually compare audio files with synchronized playback

📝

Text Comparison Always Free

Syntax highlighting for 150+ languages.
• Side-by-side / Inline / Hunk View
• Character-level diff detection
• Whitespace visualization
• Line numbers and jump navigation
✨ Unlimited use even in free version

📁

Folder Comparison 3/day

Instantly compare directory structures.
• Color-coded added/changed/deleted files
• Filter by file type
• Size and modification date display
• Export to CSV/HTML (Pro)
💎 Unlimited with Pro

🖼️

Image Comparison 3/day

Visually verify design differences.
• Overlay view for layered comparison
• Split view for side-by-side
• Opacity adjustment & synchronized zoom
• PNG, JPG, SVG, WebP support
💎 Unlimited with Pro

📤

Deployment Data 3/day

Auto-extract changed files by date range.
• Specify date range for diff extraction
• Preserve directory structure
• Generate organized deployment data instantly
• Dramatically streamline deployment workflow
💎 Unlimited with Pro

🎵

Audio Comparison 3/day

Visually compare audio files.
• Waveform display for side-by-side comparison
• Synchronized playback to hear differences
• Metadata comparison (duration, sample rate, etc.)
• MP3, WAV, FLAC, AAC support
💎 Unlimited with Pro

🎯

Pro-Only Features PRO ONLY

$17 for lifetime access
• All features unlimited
• Export to CSV, HTML, PDF
• Advanced filtering options
• Preset save & management
• Unlimited history storage

💾

Multiple Export Formats

Export comparison results in various formats.
• Free: Text format
• Pro: CSV, HTML, PDF support
• Save filter settings
• Export file lists
• Powerful report generation

COMPARISON

Free vs Pro

Free is great for basics. Pro is best for power users.

Feature Free Pro ($17)
Text Comparison ✓ Unlimited ✓ Unlimited
Folder Comparison 3 times/day ✓ Unlimited
Image Comparison 3 times/day ✓ Unlimited
Deployment Data 3 times/day ✓ Unlimited
Audio Comparison 3 times/day ✓ Unlimited
Syntax Highlighting ✓ 150+ languages ✓ 150+ languages
Export Formats TXT only TXT, CSV, HTML, PDF
History Storage Up to 5 ✓ Unlimited
Advanced Filtering ✗ ✓
Preset Saving ✗ ✓
Price $0 $17 (one-time)
PRICING

Simple, Transparent Pricing

Buy once, use forever.

⚠️ Price Notice
Due to App Store Connect settings, the Pro version price may vary based on market conditions.
Current price is $17, but may change in the future.

Free

$0
Free Forever
  • Text Comparison (Unlimited)
  • Folder Comparison (3/day)
  • Image Comparison (3/day)
  • Audio Comparison (3/day)
  • Deployment Data (3/day)
  • 150+ Language Syntax Highlighting
  • Text Format Export
  • History Storage (Up to 5)

Pro

$17
One-time (Lifetime License)
  • All Features Unlimited
  • Audio Comparison & Waveform Display
  • Advanced Filtering Options
  • Exclusion Pattern Settings
  • CSV/HTML/PDF Export
  • Preset Save & Management
  • Unlimited History Storage
FAQ

Frequently Asked Questions

Is it really a $17 one-time purchase? ⌄
Yes, that's correct. Once purchased, you get access to all Pro features. Future updates are also free. While we may introduce subscription features in the future, existing features will never be moved to subscription.
Is the free version useful enough? ⌄
Yes, text comparison is free forever and unlimited. Folder, image, and deployment data comparison are also free up to 3 times per day. Try the free version first, then consider upgrading to Pro if needed.
What file formats are supported? ⌄
Text comparison supports 150+ programming languages. Image comparison supports PNG, JPG, SVG, WebP and other major formats. Folder comparison can detect differences in any file type.
Does it work on Windows? ⌄
Yes! Both Mac and Windows are supported.
Mac version is available on Mac App Store, Windows version on Microsoft Store. Linux support may be considered based on future demand.
Is there post-purchase support? ⌄
Pro version purchasers receive continuous updates and feature improvements. While not currently available, we plan to add in-app help documentation and FAQ in the future.

No More Diff Comparison Headaches

Cut 2-hour tasks down to 3 minutes.
Eliminate missed changes in code reviews.
Dramatically boost your productivity with Diff Pro Max today.