Comparison

NCP Authenticator vs WhatChanged

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

Head to head
About

NCP Authenticator

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NCP Authenticator works with 2-Step Verification for your NCP VPN Access or any other online service using the TOTP method to provide an additional layer of security when signing in. Once configured, 2-step authentication protects your account by requiring both your password and an additional passcode, thus adding an extra layer of security. NCP Authenticator will generate these passcodes for you in a convenient way, directly on your smartphone or tablet, without the need for Internet connection. NCP Authenticator does not only operate with a NCP vpn account, but also with accounts from Google, Dropbox, PayPal and all the other providers who implement authentication in this standardized way. For additional security QR codes generated by NCP’s management can enforce biometric authentication for starting NCP Authenticator. Features β€’ Generates time-based OTP (One Time Password) codes β€’ SHA-1, SHA-256 and SHA-512 hash algorithm supported β€’ Add an account easily by simply scanning a QR code with your device camera, via link in your smartphones browser or by adding it manually β€’ The time-step for time-based passcodes can be 30 or 60 seconds β€’ Generated codes can be 6 to 8 digits wide β€’ No Internet/network connection needed, everything happens offline β€’ Copy any generated code to the clipboard for easy and fast access β€’ High security thanks to optional biometric authentication before starting NCP Authenticator

About

WhatChanged

Features
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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 β€œdid this transfer match?” check. β—Ό File and folder comparison β€’ Compare two files or two folders as Left and Right β€’ Review added, removed, modified, renamed, and identical items β€’ Use smart ignore rules for hidden items, extensions, names, and patterns β€’ Ignore line-ending or whitespace-only changes when appropriate β€’ Preview supported files, keep recent comparisons, and export or share reports β€’ Verify content with optional SHA-256 and cached re-checks β€’ Use the app in 25 languages, with an optional in-app language override β—Ό From the share sheet In Files, or another app that can share files, select exactly two files. Tap Share β†’ WhatChanged. The comparison opens automatically. Tip: The extension is intended for file-to-file comparison. To compare folders, open the main app. β—Ό 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 β€œ+ 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 β€œSafe 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. β—Ό 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. β—Ό 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 β—Ό 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. β—Ό 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

NCP Authenticator4 screens
WhatChanged4 screens

Verdict

The call

The clearest difference is price: NCP Authenticator at Free against WhatChanged's $9.99. WhatChanged's advantage is update cadence (every 3 weeks vs every 25 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

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

NCP Authenticator is free to download; WhatChanged costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NCP Authenticator ships an update every 25 months, WhatChanged every 3 weeks. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

Scorecard2 real differences Β· 4 level
NCP Authenticator versus WhatChanged: the parameters behind the verdict, then further details
ParameterNCP AuthenticatorWhatChanged
PriceFree β€” better$9.99
Update frequencyEvery 25 monthsEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, Mac β€” better
Requires iOS15.1 β€” better16.6
Further details β€” not scored
Size18 MB31 MB
Age rating4+4+
DeveloperN C P E GmbH Network Communications Products EngineeringIri You

In-app purchases

None

NCP Authenticator

No in-app purchases

None

WhatChanged

No in-app purchases

Questions

Is NCP Authenticator free?
NCP Authenticator is free to download, with no in-app purchases.
Is WhatChanged free?
WhatChanged costs $9.99, with no in-app purchases.
Do NCP Authenticator or WhatChanged have ads?
Neither NCP Authenticator nor WhatChanged shows ads.
Which is updated more often, NCP Authenticator or WhatChanged?
NCP Authenticator ships an update every 25 months, and WhatChanged every 3 weeks. Most recently, NCP Authenticator was updated on September 10, 2026 and WhatChanged on September 11, 2026.

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