Comparison

xZip vs CryptKB

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

Head to head
About

xZip

This utility app allows users to easily decompress and extract files from various archive formats like zip, rar, and 7z. It supports previewing file information within compressed packages and offers separate extraction of individual files.

Highlights
  • Decompress various archive formats (zip, rar, 7z, xz)
  • Extract files from compressed packages
  • Preview archive file information
  • Free and ad-free experience
Features
Read full description

xZip is a lightweight archive viewer and extractor for iOS and iPadOS. Browse what's inside before you extract, pull out only the files you need, and move on — no ads, no account, no fuss. FREE FEATURES • Open ZIP, RAR, 7z, TAR, XZ, GZ, TGZ archives • Browse file trees and folder structures • Extract all files with one tap • Basic compression (ZIP, 7z) • Password-protected archives supported PRO UNLOCK (one-time purchase) • Preview images, PDFs, and text without extracting • Extract individual files on demand • Encrypt compressed files with a password (ZIP & 7z) • Low-memory compression mode for large files • Split multiple files into separate or chunked archives • Works on iPhone, iPad, and Mac with a single purchase FORMATS SUPPORTED • Full preview: ZIP, RAR, 7z, TAR • Quick extract: XZ, GZ, TGZ, TAR.GZ DESIGNED FOR iPad & iPhone • Optimized for iPad multitasking and larger screens • Open archives from Files, Mail, Safari, or AirDrop PRIVACY & PERFORMANCE • Zero ads — not now, not ever • No account, no personal data collected • All processing happens on-device • Lightweight and fast — under 30 MB • VoiceOver supported Built for people who just want to open their files and move on. Privacy Policy: https://blabla-yy.github.io/privacy/xzip-en.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CryptKB

Encrypt messages and files locally on your device before sending. Use a custom keyboard or Messages extension to easily encrypt and decrypt content with a password. Your data remains private with no account creation or backend servers.

Highlights
  • Local encryption/decryption
  • Custom keyboard integration
  • Messages extension
  • AES-256-GCM encryption
  • ASCII-safe payload
  • Password saving with Face ID/passcode
Features
Read full description

CryptKB helps you encrypt message text before it leaves your iPhone or iPad. Use the custom keyboard to write a message, choose a password, and insert an encrypted payload into Messages or another text field. Or open the Messages extension to stage a CryptKB bubble inside a Messages draft. The other person can open the same payload in CryptKB and decrypt it locally with the matching password. Why people use CryptKB: - Local encrypt and decrypt on device - Custom keyboard for ordinary text fields - Messages extension for composing and opening CryptKB bubbles - AES-256-GCM encryption with PBKDF2-HMAC-SHA256 key derivation - ASCII-safe payload format for copy, paste, and sharing - Optional saved conversation passwords protected by Face ID or device passcode - No account creation, no backend relay, no analytics SDKs, and no ad tracking in the app - Built-in playground, settings, privacy notes, and diagnostics How it works: 1. Switch to CryptKB Keyboard. 2. Type your message. 3. Enter a password. 4. Tap Encrypt & Insert. 5. Review the encrypted text and tap Send yourself. To decrypt, paste or open a CryptKB payload, enter the matching password, and read the plaintext locally. CryptKB intentionally reveals decrypted text in a local panel instead of writing it back into the conversation automatically. Important platform notes: - Apple does not allow third-party keyboards to tap the host app's Send button, so sending is always manual. - Password recovery is not possible by design. - CryptKB protects message content inside its encrypted payload, not message metadata like recipients, timestamps, screenshots, or notification previews.

Screenshots

xZip4 screens
CryptKB4 screens

Verdict

The call

The clearest difference is price: xZip at Free against CryptKB's $1.99. xZip also leads on ratings volume (3 vs 1). CryptKB's advantage is in-app purchases (none vs 1). On rating, ads, device support and iOS requirement 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

xZip is free to download; CryptKB costs $1.99 up front. xZip sells 1 one-off in-app purchase. CryptKB asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for xZip against 5.0 for CryptKB. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Scorecard4 real differences · 6 level
xZip versus CryptKB: the parameters behind the verdict, then further details
ParameterxZipCryptKB
PriceFree — better$1.99
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews50.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 8 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size8 MB5 MB
Age rating4+4+
Developer跃洋 王Seth Farrington18896201822

Customer experience

xZip

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

CryptKB

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

xZip

One-time1
  • Pro Unlock$2.99
None

CryptKB

No in-app purchases

Questions

Is xZip free?
xZip is free to download, with in-app purchases available.
Is CryptKB free?
CryptKB costs $1.99, with no in-app purchases.
Which has better reviews, xZip or CryptKB?
xZip and CryptKB are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do xZip or CryptKB have ads?
Neither xZip nor CryptKB shows ads.

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