Comparison

Hash & Encryption Calculator vs WhatChanged

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

Head to head
About

Hash & Encryption Calculator

This utility app allows users to generate various hash values and perform Base64 encoding/decoding. It supports multiple hashing algorithms like MD5 and SHA, and offers a user-friendly interface for easy data manipulation and result copying.

Highlights
  • Multiple hashing algorithms (MD2, MD4, MD5, SHA 1, SHA 224, SHA 256, SHA 386, SHA 512)
  • Base64 encoding and decoding
  • ROT13 cipher
  • Copy paste results
  • User-friendly interface
Features
Read full description

Encryption became a common thing with the availability and spread of information we’re facing today, encryption of various kinds has to be employed if we want to ensure any level of information confidentiality. Hashing is a method of checking the integrity of encrypted content and lets us detect any and all modifications done to it. Features: • Instance check with type MD2, MD4, MD5, SHA 1, SHA 224, SHA 256, SHA 386, SHA 512, Base 64, ROT13. • Copy Paste Result. • User friendly Interface and Navigation. MD5 Complete an MD5 output on the Input data using the MD5 Message-Digest Algorithm. This algorithm is a hash function that produces a 128-bit 16-byte hash value. Useful for security application, it can perform a check data integrity function. It was designed to replace MD4. Typically, it is expressed as a hex number that is 32 digits long. As it is not collision resistant, it is not good for digital signature or SSL certificate applications. Hash keying is also known as convergent encryption. This keying and encryption is a cryptosystem that produces ciphertext from plain text. A cryptographic hash function is an algorithm that takes data and provides a hash value. The message or value to be encoded is the data while the hash value is called a digest or message digest. Authentication and digital signatures are two of many information security applications involving cryptographic hash. The hash functions can also be useful for fingerprinting, identification of duplicate data, detection of data corruption, and creation of hash tables. Cryptographic hash values are sometimes called hash values or checksums or digital fingerprints. Security provided by a hash algorithm depends on it being able to produce a unique value. A collision occurs when you get the same hash value for different data. A strong hash value is resistant to computational attacks. SHA Complete a SHA output on the data in the Input window choosing from Sha-1, Sha-224, Sha-256, Sha-384, or Sha-512. This set of cryptographic hash functions was designed by the US National Security Agency (NSA) and published in the early 2000’s. Short for Secure Has Algorithm, the Sha function is an algorithm that hashes data such as a text file into a fixed length variable know as a has. This computed hash value is then used to verify copies of the original data. You cannot recreate the original from the hash value. The SHA functions include digests for 224, 256, 384, or 512 bits. Hash keying is also known as convergent encryption. This keying and encryption is a cryptosystem that produces ciphertext from plain text. Base64 Base64 is a group of schemes that encode binary to text. This represents binary data in an ASCII strong format. Translation is done via radix 64. The term comes from a MIME encoding. These schemes are typically used when you need to encode binary data stored over media that deals with textual data. Data remains intact with no modification during transport. Email via MIME is one application. Storing data in XML is another application. Encoding that is now called MIME Base64 was first used in a standardized way was through privacy-enhanced mail using the PEM protocol in the mid 1980’s. PEM uses a Base64 scheme that transforms octets to a format of 60bit characters that can use SMTP. ROT13 ("rotate by 13 places", sometimes hyphenated ROT-13) is a simple letter substitution cipher that replaces a letter with the 13th letter after it, in the alphabet. ROT13 is a special case of the Caesar cipher, developed in ancient Rome. Because there are 26 letters (2×13) in the basic Latin alphabet, ROT13 is its own inverse; that is, to undo ROT13, the same algorithm is applied, so the same action can be used for encoding and decoding. The algorithm provides virtually no cryptographic security, and is often cited as a canonical example of weak encryption. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

WhatChanged

Features
Read full description

WhatChanged is a file and folder comparison app built to answer one practical question: what changed between these two copies? Compare two files or two folders on iPhone, iPad, and Mac and get a clear summary of added, removed, modified, renamed, and identical items. Use optional SHA-256 verification when metadata alone is not enough. On iPhone and iPad, start inside the app or send exactly two files from Files straight to WhatChanged. It is useful for backups, exports, cloud-drive copies, builds, and any “did this transfer match?” check. ◼ File and folder comparison • Compare two files or two folders as Left and Right • Review added, removed, modified, renamed, and identical items • Use smart ignore rules for hidden items, extensions, names, and patterns • Ignore line-ending or whitespace-only changes when appropriate • Preview supported files, keep recent comparisons, and export or share reports • Verify content with optional SHA-256 and cached re-checks • Use the app in 25 languages, with an optional in-app language override ◼ From the share sheet In Files, or another app that can share files, select exactly two files. Tap Share → WhatChanged. The comparison opens automatically. Tip: The extension is intended for file-to-file comparison. To compare folders, open the main app. ◼ Safe Merge Run a folder comparison, open Safe Merge, and choose a main rule: Newest, Oldest, Smallest (New), Smallest (Old), Biggest (New), or Biggest (Old). The Safe Merge Assistant shows selected items, recommendations, conflicts, blocking issues, output details, and safety checks before anything is copied. For individual output paths, you can keep the main Merge Rule or choose Left or Right. Recommended continues to show what the main rule would choose, while Selected shows what will actually be copied. The “+ Custom” indicator appears whenever exceptions are active. WhatChanged recalculates the plan and verifies it again before copying. Custom merges use a clearly named output folder, such as “Safe Merge by WhatChanged (Newest + Custom).” Successful merges include a generated README describing the compared folders, main rule, custom selections, copied items, output paths, counts, and safety notes. ◼ Quick text checks Use Direct Text Compare, supported text files, or folder-pair text results for convenient text checks. Copy a unified-diff-style result, search with Find in Diff, move between matches, highlight rows, and review Diff Summary counts. These text tools are included for quick comparison inside a file-and-folder utility. WhatChanged is not designed as a full drafting workspace. ◼ Looking for a dedicated text workspace? DiffDraft is designed specifically for comparing text versions and composing a clean final draft in a row-aware workspace. Source rows, draft rows, manual rows, and intentional gaps stay visually aligned, helping long reviews remain stable and trustworthy while you cherry-pick, edit, and continue later. View DiffDraft on the App Store: https://apps.apple.com/us/app/diffdraft/id6779625050 ◼ Safe by design WhatChanged does not modify or delete your originals. Comparisons are read-only. Safe Merge writes only to a new output folder after you confirm the merge and every required safety check passes. ◼ Official website Product information, support, privacy details, and terms are available here: https://hazybyte.studio/whatchanged/ Requires iOS 16.6 or later. Terms of Use: https://hazybyte.studio/whatchanged/terms-of-use/

Screenshots

Hash & Encryption Calculator4 screens
WhatChanged4 screens

Verdict

The call

The clearest difference is price: Hash & Encryption Calculator at $1.99 against WhatChanged's $9.99. Hash & Encryption Calculator also leads on iOS requirement (12.0 vs 16.6). WhatChanged's advantage is update cadence (every 3 weeks vs every 38 months). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Hash & Encryption Calculator costs $1.99 and WhatChanged $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Hash & Encryption Calculator ships an update every 38 months, WhatChanged every 3 weeks. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 6 level
Hash & Encryption Calculator versus WhatChanged: the parameters behind the verdict, then further details
ParameterHash & Encryption CalculatorWhatChanged
Price$1.99 — better$9.99
Rating3.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 38 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better16.6
Further details — not scored
Size8 MB31 MB
Age rating4+4+
DeveloperHeng Jia LiangIri You

In-app purchases

None

Hash & Encryption Calculator

No in-app purchases

None

WhatChanged

No in-app purchases

Questions

Is Hash & Encryption Calculator free?
Hash & Encryption Calculator costs $1.99, with no in-app purchases.
Is WhatChanged free?
WhatChanged costs $9.99, with no in-app purchases.
Do Hash & Encryption Calculator or WhatChanged have ads?
Neither Hash & Encryption Calculator nor WhatChanged shows ads.
Which is updated more often, Hash & Encryption Calculator or WhatChanged?
Hash & Encryption Calculator ships an update every 38 months, and WhatChanged every 3 weeks. Most recently, Hash & Encryption Calculator was updated on October 24, 2026 and WhatChanged on October 15, 2026.

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