Diff Forge

About this app

Diff Forge is a powerful, native text comparison and merge tool built for developers, writers, and anyone who works with text. Compare two files or text snippets instantly, view precise differences, and merge changes interactively — all from your iPhone or iPad. COMPARE WITH PRECISION - Side-by-side or unified diff views that adapt to your screen - Character-level intraline highlighting shows exactly what changed within each line - Myers diff algorithm delivers fast, accurate results - Configurable context lines so you see just enough surrounding code - Works with GIT SYNTAX HIGHLIGHTING Full syntax highlighting for 24+ languages including Swift, Python, JavaScript, TypeScript, Java, Kotlin, C#, Go, Rust, Ruby, PHP, HTML, CSS, JSON, YAML, XML, SQL, Shell, C, C++, Markdown, and more. INTERACTIVE MERGE - Select left or right changes per hunk to build your merged output - Bulk actions: take all left or take all right in one tap - Live preview of your merged result as you make selections - Copy or export your merged file when you're done FLEXIBLE OPTIONS - Ignore whitespace differences - Case-insensitive comparison - Trim trailing whitespace - Adjustable context lines (0-10) - Show or hide line numbers - Configurable tab width CUSTOMISE YOUR WORKSPACE - Adjustable font size (8-32pt) - Line spacing control - Custom colours for insertions, deletions, modifications, and gutters - Syntax highlighting toggle BUILT FOR iOS - Native SwiftUI interface — fast, smooth, and responsive - Open files directly or paste text into the editor - Swap sides instantly - Search across your diff results - Supports UTF-8, UTF-16, and multiple text encodings - Files up to 10 MB Diff Forge is a one-time purchase with no subscriptions, no ads, and no account required. Just open it and start comparing.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 24, 2026 · 3:58 AM $3.99