Comparison

HTMLKit vs WhatDiff

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

Head to head
About

HTMLKit

Features
Read full description

HTMLKit is a Safari extension that lets you view the HTML source code of any webpage on iPhone, iPad, and Mac. FEATURES • One-Tap Source Loading Tap the extension icon to instantly load the complete HTML source code of the current page. • Dual View Modes - Current DOM: View the live page structure after JavaScript modifications - Original HTML: View the raw HTML returned from the server • Copy & Download Copy source code to clipboard with one tap, or download as a file. • Cross-Platform Enjoy a consistent experience across iPhone, iPad, and Mac. WHO IS IT FOR • Web Developers: Quickly inspect page structure and debug issues • Designers: Learn layout techniques from well-crafted websites • Students: Study HTML and web technologies • Curious Users: Explore how websites work behind the scenes

About

WhatDiff

Features
Read full description

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

HTMLKit4 screens
WhatDiff4 screens

Verdict

The call

The clearest difference is iOS requirement: WhatDiff at 16.4 against HTMLKit's 18.0. On price, update cadence, ads and in-app purchases 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. HTMLKit sells 1 one-off in-app purchase and WhatDiff sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.

Scorecard1 real difference Ā· 5 level
HTMLKit versus WhatDiff: the parameters behind the verdict, then further details
ParameterHTMLKitWhatDiff
PriceFreeFree
Update frequencyEvery 5 monthsEvery 5 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size6 MB2 MB
Age rating4+4+
DeveloperFebesGoods Studioꠋ 陈

In-app purchases

1 purchases

HTMLKit

One-time1
  • Full Version$2.99
3 purchases

WhatDiff

Subscriptions2
  • WhatDiff Month Subscription$2.991 Month
  • WhatDiff Annual Subscription$12.991 Year
One-time1
  • WhatDiff Lifetime License$24.99

Questions

Is HTMLKit free?
HTMLKit is free to download, with in-app purchases available.
Is WhatDiff free?
WhatDiff is free to download, with in-app purchases available.
Do HTMLKit or WhatDiff have ads?
Neither HTMLKit nor WhatDiff shows ads.
Which is updated more often, HTMLKit or WhatDiff?
HTMLKit ships an update every 5 months, and WhatDiff every 5 months. Most recently, HTMLKit was updated on September 18, 2026 and WhatDiff on September 8, 2026.

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