Comparison

Secure Notes vs Koz

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

Head to head
About

Secure Notes

Safeguard your private thoughts, voice memos, and sensitive information with robust, multi-layered security. This app offers military-grade encryption, biometric locks, and secure voice recording to keep your data protected. Enjoy a distraction-free, ad-free experience with a powerful rich text editor and seamless iCloud syncing across devices.

Highlights
  • 3-Layer Security (app, folders, notes)
  • Secure Voice Recording
  • Biometric Lock (Face ID, Touch ID, Passcode)
  • iCloud Sync
  • Rich Text Editor with Markdown
  • Trash Recovery
Features
Read full description

Lock your notes. Only you can access them. Secure Notes is a private and secure notes app designed to protect your thoughts, passwords, voice memos, and sensitive information. Everything is encrypted on your device, and even we cannot read your data. If you need a truly private place for your notes, Secure Notes gives you full control, strong protection, and a simple experience that works every day. Built for real privacy - Your notes are yours. Always. - No tracking - No analytics on your content - No data selling - No external access to your notes All data is stored securely on your device and, if enabled, inside your private iCloud account. This is not just a locked notes app — it is built for real privacy. Powerful protection Secure Notes uses multiple layers of protection to keep your data safe. 3-layer security: lock the app, folders, and individual notes Face ID, Touch ID, or passcode protection Lock specific notes with additional security Encrypted storage on device Designed to prevent unauthorized access Your notes stay protected even if your device is lost or accessed by someone else. Write, record, and organize Capture everything in one place. Secure text notes for daily use Voice notes up to 10 minutes Speech-to-text: transcribe any voice note with one tap Markdown editor with formatting support Live preview for better writing experience Organize notes into folders Whether you are writing ideas, journaling, or storing important information, everything stays private and accessible. Sync across your devices iCloud sync between iPhone and iPad Instant updates across devices Your data remains under your control No external servers. No unnecessary exposure. Designed for speed and simplicity Fast and responsive performance Clean, modern interface Dark mode support No ads or distractions Reliable experience every day Additional features Trash recovery for up to 30 days Improved text rendering Enhanced Markdown editing Notifications to stay on top of your notes Continuous performance improvements Why people choose Secure Notes Private journaling and personal thoughts Password and sensitive information storage Financial tracking and private records Health notes and personal logs Recovery phrases and secure data storage Anything you want to keep hidden, protected, and under your control. Security you can trust All notes are encrypted and stored locally unless you enable iCloud sync. We do not have access to your data and cannot read your notes. Deleting the app removes all unsynced data permanently. Terms and conditions: https://www.pixelport.io/app/secure-notes-lock-notes/terms-conditions Privacy Policy: https://www.pixelport.io/app/secure-notes-lock-notes/privacy-policy EULA: https://www.pixelport.io/app/secure-notes-lock-notes/eula

About

Koz

Features
Read full description

Koz is a privacy-focused notes app built around one idea. What you write belongs only to you. Koz never connects to the internet. No accounts, no servers, no analytics, no ads. Everything in your notebook stays only on your device. SECURITY • Notes are sealed with AES-256-GCM, the whole database is encrypted with SQLCipher. • The PIN that unlocks the app also derives the encryption key (Argon2id); the PIN itself is never stored anywhere. • Unlock quickly with fingerprint or Face ID. • Emergency password: entering it shows "wrong PIN" on screen, but quietly wipes the vault. Built for moments you're forced to unlock the app. NOTES • Organize freely with folders inside folders. • Attach photos, files, and voice memos, all encrypted the same way as your text. • Hide any note or folder so it disappears completely from browsing; only you can bring it back. BACKUP • Create an encrypted backup file any time, protected with its own separate password. • Backups are never uploaded anywhere; where you keep them is entirely up to you. Terms of Use (EULA): https://koznotes.app/terms Privacy Policy: https://koznotes.app/privacy

Screenshots

Secure Notes4 screens
Koz4 screens

Verdict

The call

The clearest difference is update cadence: Koz at daily against Secure Notes's fortnightly. On price, 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

Both are free to download. Secure Notes sells 6 in-app purchases, starting at $4.99 per month and Koz sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Secure Notes ships an update fortnightly, Koz daily. The most recent releases landed on September 24, 2026 and September 15, 2026 respectively.

Scorecard1 real difference · 9 level
Secure Notes versus Koz: the parameters behind the verdict, then further details
ParameterSecure NotesKoz
PriceFreeFree
Rating4.6 (719 ratings) — better—
Positive reviews65.1% of reviews—
Number of ratings719 — better—
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.615.0 — better
Further details — not scored
Size67 MB37 MB
Age rating4+4+
DeveloperPixelPort LLCTAHA C BASKIN

Bugs and requests

Secure Notes

Reported bugs

3 issues
  • Frequent app crashes
  • Delayed text input and display
  • Inability to access locked notes

Requested features

4 requests
  • Ability to move notes between folders
  • Option to customize font, size, and colors
  • Trash/Recycle bin for deleted notes
  • Cloud sync/backup functionality

Koz

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Secure Notes

Subscriptions5
  • Secure Notes - 1 Month PRO3 Days trial$4.991 Month
  • Secure Notes - Pro Monthly3 Days trial$6.991 Month
  • Secure Notes Pro Monthly3 Days trial$9.991 Month
Show 2 more
  • Secure Notes Pro Annual Offer$19.991 Year
  • Secure Notes - 1 Year PRO$39.991 Year
One-time1
  • Secure Notes Pro - Lifetime$99.99
2 purchases

Koz

Subscriptions2
  • Koz Pro$3.991 Month
  • Koz Pro Yıllık$39.991 Year

Questions

Is Secure Notes free?
Secure Notes is free to download, with in-app purchases available.
Is Koz free?
Koz is free to download, with in-app purchases available.
Do Secure Notes or Koz have ads?
Neither Secure Notes nor Koz shows ads.
Which is updated more often, Secure Notes or Koz?
Secure Notes ships an update fortnightly, and Koz daily. Most recently, Secure Notes was updated on September 24, 2026 and Koz on September 15, 2026.

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