Comparison

NoteCrypt Encrypted Notes vs Strongbox Zero

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

Head to head
About

NoteCrypt Encrypted Notes

Secure your sensitive information with robust 256-bit AES encryption. This app prioritizes privacy with zero-knowledge, offline-only storage and no cloud integration or analytics. It offers a simple, secure way to keep your notes protected from unauthorized access.

Highlights
  • 256-bit AES encryption
  • Zero-knowledge security
  • Offline-only storage
  • Password strength indicator
  • Dark themed UI
  • No cloud integration
Read full description

NoteCrypt combines strong 256-bit AES encryption, and rugged simplicity. NoteCrypt will prevent even the most determined and well-resourced attacker from accessing your notes, even if they physically possess and can unlock your device. NoteCrypt goes to extreme lengths to secure your notes: - Applies 256-bit AES encryption to the full notes database - Uses the PBKDF2 key derivation and stretching function - Does not store your password, making your notes impossible to decrypt without it - Does not have cloud integration or login - Does not use analytics - Uses 'salt' to prevent 'rainbow table' attacks - Foils 'known plaintext' attacks by encrypting big blocks of data including metadata - Erases the in-memory copy of your notes when leaving the app - Prevents notes showing in the app switcher - Does not support Touch ID so as to not compromise on security NoteCrypt also has the following usability features: - Simple, no-nonsense design - Provides an indicator on the strength of your password - Allows you to change your password - Dark themed UI In summary, NoteCrypt works the hardest to secure your notes.

About

Strongbox Zero

This app securely stores and protects your passwords with a master password. It supports open-source formats and offers advanced security features like biometric unlock and hardware token protection. It's designed for users who prefer a local-only password management solution.

Highlights
  • Local-only password storage
  • Biometric and PIN unlock
  • YubiKey hardware token protection
  • Military-grade cryptography
  • Password auditing for weak passwords
  • Secure document attachment viewer
  • Import/Export via Files app and Email
Features
Read full description

Strongbox Zero is a version of the well known and loved Strongbox with all of the networking code and as many third party libraries stripped out as we could! Think of it as the Drag Racer version of Strongbox! If you're a fan of Local Only password managers this could be the right choice for you. We recommend you get to know (and love!) the regular Strongbox first through the Freemium app. Once you're happy and sure you want to go local only, go for Strongbox Zero... Strongbox Zero is an application for keeping all your passwords safely stored and protected by one master password. Supporting the open source Password Safe and KeePass formats. *** Features *** - Face ID/Touch ID Unlock for the ultimate in convenience, security and speed. - PIN Code Unlock with a Duress PIN option for those tricky situations. - YubiKey protection - secure your databases with a hardware token. - Secure - protected by time tested military grade cryptography. - Private - Isolated In-App attachments viewer for your sensitive documents, photos & videos. - Audit your passwords - Automatically check your database for weak passwords - Search your entire set of passwords and secrets instantly and powerfully, with deep search. Autocomplete new entries, and auto generate secure passwords. - Compatible - Import/Export by Files app, Email, CSV, iTunes File Sharing - Standards compliant - using the time tested Password Safe and KeePass formats so you can import any existing password safe you have. - Features galore - Incredibly configurable password generation including Diceware (XKCD) & regular passwords. - Timed Auto Clear Clipboard. - Entry History. - KeePass Field References, Tags & Custom Icons. - Two Factor Authentication codes (TOTP) - QR Code, Steam & Manual. --------------------------------------------------------------------- • Payment will be charged to iTunes Account at confirmation of purchase • Strongbox Privacy Policy may be found here: https://strongboxsafe.com/privacy-policy/ • Strongbox Terms of Use may be found here: https://strongboxsafe.com/terms/

Screenshots

NoteCrypt Encrypted Notes3 screens
Strongbox Zero4 screens

Verdict

The call

The clearest difference is price: NoteCrypt Encrypted Notes at $2.99 against Strongbox Zero's $99.99. NoteCrypt Encrypted Notes also leads on rating (4.8 vs 4.3) and review sentiment (88% vs 75%). Strongbox Zero's advantage is update cadence (every 2 weeks vs every 38 months) and device support (5 vs 1). On ratings volume, ads, in-app purchases and monetization model 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

NoteCrypt Encrypted Notes costs $2.99 and Strongbox Zero $99.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NoteCrypt Encrypted Notes holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 56 and 21 respectively. Written reviews point the same way: 88% of NoteCrypt Encrypted Notes's written reviews are positive against 75% of Strongbox Zero's.

UpkeepUpdate frequency

NoteCrypt Encrypted Notes ships an update every 38 months, Strongbox Zero every 2 weeks. Both last shipped on September 22, 2026.

Scorecard5 real differences · 5 level
NoteCrypt Encrypted Notes versus Strongbox Zero: the parameters behind the verdict, then further details
ParameterNoteCrypt Encrypted NotesStrongbox Zero
Price$2.99 — better$99.99
Rating4.8 (56 ratings) — better4.3 (21 ratings)
Positive reviews87.5% of reviews — better75.0% of reviews
Number of ratings56 — better21
Update frequencyEvery 38 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhoneiPhone, iPad, iPod, Mac, Apple Watch — better
Requires iOS16.615.0 — better
Further details — not scored
Size1 MB96 MB
Age rating4+4+
DeveloperApp NurseryPhoebe Code Limited

Customer experience

NoteCrypt Encrypted Notes

All ratings56 ratings
Positive96.4%
Neutral1.8%
Negative1.8%
Written reviews24 reviews
Positive87.5%
Neutral4.2%
Negative8.3%

Strongbox Zero

All ratings21 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews20 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

NoteCrypt Encrypted Notes

No in-app purchases

None

Strongbox Zero

No in-app purchases

Questions

Is NoteCrypt Encrypted Notes free?
NoteCrypt Encrypted Notes costs $2.99, with no in-app purchases.
Is Strongbox Zero free?
Strongbox Zero costs $99.99, with no in-app purchases.
Which has better reviews, NoteCrypt Encrypted Notes or Strongbox Zero?
NoteCrypt Encrypted Notes is rated higher. NoteCrypt Encrypted Notes averages 4.8 out of 5 from 56 ratings, while Strongbox Zero averages 4.3 from 21 ratings.
Do NoteCrypt Encrypted Notes or Strongbox Zero have ads?
Neither NoteCrypt Encrypted Notes nor Strongbox Zero shows ads.
Which is updated more often, NoteCrypt Encrypted Notes or Strongbox Zero?
NoteCrypt Encrypted Notes ships an update every 38 months, and Strongbox Zero every 2 weeks. Most recently, NoteCrypt Encrypted Notes was updated on September 22, 2026 and Strongbox Zero on September 22, 2026.

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