hexJapality vs Diff Checker
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
hexJapality
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hexJapality is a mobile hex viewer and binary inspection toolbox for developers, students, and technical users who need to explore files at the byte level. Open local files on your device, move through offsets, and view bytes in HEX, DEC, OCT, or BIN with printable ASCII alongside the raw data. Select any byte to inspect common interpretations including unsigned integers, signed integers, floats, binary, hex, and ASCII. Built-in tools help you understand file structure faster: ⢠Edit individual bytes with undo and redo before saving ⢠Search for text or exact hex byte patterns ⢠View file size, MD5, and SHA-256 ⢠Detect common formats such as PNG, JPEG, PDF, ZIP, ELF, and GIF ⢠Explore entropy and byte distribution maps ⢠Scan for readable strings and jump to offsets ⢠Add bookmarks for important locations ⢠Compare two files with Binary Diff ⢠Export bytes as a C array, Rust array, hex string, or Base64 Privacy: Files you open are processed on your device. We do not upload your file contents to our servers. Free version: The app is free to download and may display ads. You can subscribe to Remove Ads (monthly or yearly) in Settings to enjoy an ad-free experience while your subscription is active. Payment is charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID subscription settings. Restore purchases is available in the app. Use responsibly: You are responsible for files you open, edit, or export. Always back up important data before editing. Terms of Use (EULA): https://app.japality.com/hexjapality/i/terms_of_use/ Privacy Policy: https://app.japality.com/hexjapality/i/privacy_policy/ Support: https://app.japality.com/hexjapality/i/support/ hexJapality is provided by Japality Limited (Hong Kong). Designed for quick checks and byte-level inspection on mobile.
Diff Checker
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Compare two versions of any text and see exactly what changed ā line by line and word by word, highlighted the instant you paste. Most "spot the difference" attempts end in squinting at two walls of text side by side. DiffCheck does the reading for you: paste an old version and a new one, and every addition turns green, every deletion turns red, so the change jumps out in a second. It works on code, config files, contracts, and plain prose alike ā and it never sends a single character off your device. WHAT YOU GET - See every change at a glance ā additions in green, deletions in red, nothing missed - Switch between line-level and word-level diffs to catch even a single edited character - Read changes in a clean side-by-side split view that lines the two versions up - Copy a ready-to-use unified patch of any comparison straight to your clipboard - Keep a local history of past comparisons so you can revisit what changed and when - Save reusable snippets and sample diffs to compare the same text again fast PERFECT FOR - Developers reviewing code, pull requests, and config changes on the go - Writers and editors checking edits between two drafts - Legal and business users comparing contract or document revisions - Students learning how diffs and the unified patch format work WHY NOT JUST EYEBALL IT Reading two versions by hand is where mistakes hide ā a flipped number, a deleted clause, a changed flag. DiffCheck compares them character by character so you catch the change you would have scrolled right past. PRIVACY Your text never leaves your device. There are no accounts, no servers, and no tracking ā every comparison happens fully offline. FULL ACCESS DiffCheck is free to compare text. Full Access unlocks word-level diffs, the side-by-side split view, saved comparison history, and unified patch export. Choose the plan that fits: - Weekly plan - Yearly plan - Lifetime one-time purchase Payment is charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period; manage or cancel anytime in your App Store settings. The lifetime option is a one-time purchase. Paste two versions now and see what changed in a second. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? https://web-levi.web.app/#contact
Screenshots
Verdict
The clearest difference is in-app purchases: hexJapality at none against Diff Checker's 2. hexJapality also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Diff Checker's advantage is ads (none vs shown). On price and update cadence there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Diff Checker sells 2 in-app purchases, starting at $2.99 per 7 days. hexJapality asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.
| Parameter | hexJapality | Diff Checker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No ā better |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad, iPod ā better | iPhone |
| Requires iOS | 13.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 44 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Japality Limited | Phuc Pham |
In-app purchases
hexJapality
No in-app purchases
Diff Checker
- Weekly$2.997 Days
- Yearly$14.991 Year





