Comparison

Secure Notes vs Lock Notes

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

Head to head
About

Secure Notes

Securely store and organize your notes, ideas, and important information with advanced encryption. Protect your data with biometric authentication and access it from anywhere via cloud sync. Customize your experience with a dark mode and other preferences for peace of mind.

Highlights
  • Advanced encryption for maximum security
  • Intuitive note creation and editing
  • Password, Face ID, and Touch ID access
  • Cloud synchronization across devices
  • Dark mode and interface customization
Read full description

Your thoughts deserve total privacy. Some ideas are too personal to risk. Passwords, secret plans, private memories — this app keeps them locked away on your device, always. No cloud. No servers. No one but you. BUILT FOR PRIVACY Your notes never leave your device. No syncing, no uploading, no exposure. What you write stays with you — period. LOCK IT DOWN Protect everything with a password. Enable Face ID or Touch ID for instant, secure access in seconds. MAKE IT YOURS Choose from 16 beautiful backgrounds to match your mood. A notes app that feels personal. SIMPLE AND POWERFUL Create, edit, search, and sort your notes effortlessly. Find anything instantly with smart search. Available on iPhone, iPad, and Mac. ZERO ADS No distractions. No tracking. Just you and your thoughts. Whether you are storing passwords, journaling private thoughts, saving business ideas, or keeping sensitive info away from prying eyes — this is the vault you always needed. You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription. • Subscription durations: Monthly or Annual (both include a free trial period). • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. Privacy Policy: https://sites.google.com/site/privacycoldat/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Lock Notes

Securely store and protect your private notes with a passcode or Touch ID. Keep sensitive information like passwords, secrets, and diary entries safe from unauthorized access. Backup and sync notes across devices, customize their appearance, and even add images.

Highlights
  • Passcode and Touch ID protection
  • Security question recovery
  • iCloud backup and sync
  • Customizable font style and size
  • Insert images into notes
  • Print and share notes
Features
Read full description

FINALLY AN APP FOR ALL YOUR PRIVATE NOTES! Keep your most valuable, private, and secret notes away from prying eyes. Keep them all totally secret and safe. Store passwords, secrets, contacts or just keep your diary private. KEY FEATURES: • Use Touch ID or passcode to safely lock access to your private notes. • Set a security question and answer in case you forget your passcode. • Safely Backup your valuable notes to iCloud. • Quickly Sync notes between iPhone & iPad with iCloud. • Sort notes list by name, date or manual. • Select notes font style and size. • Insert images & photos into notes. • Print your notes. • Send notes via text message or email. • Save notes to Camera Roll. • Support for Emoji Emoticons. This app allows you to automatically backup your notes for $9.99 a year through an auto-renewing subscription. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period You will not be able to cancel a subscription during the active period. You can manage your subscriptions in the Account Settings after purchase. Terms of use: http://www.katans.com/terms-of-use Privacy policy: http://www.katans.com/privacy-policy This app can be freely used up to two notes. A SINGLE PURCHASE COVERS ALL YOUR IPHONE AND IPAD DEVICES.

Screenshots

Secure Notes4 screens
Lock Notes4 screens

Verdict

The call

The clearest difference is review sentiment: Lock Notes at 73% against Secure Notes's 21%. Lock Notes also leads on update cadence (every 10 days vs every 8 months) and iOS requirement (13.0 vs 15.0). Secure Notes's advantage is monetization model (free with in-app purchases vs subscription). 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 2 in-app purchases, starting at $0.99 per month and Lock Notes sells 3 in-app purchases, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Secure Notes ships an update every 8 months, Lock Notes every 10 days. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
Secure Notes versus Lock Notes: the parameters behind the verdict, then further details
ParameterSecure NotesLock Notes
PriceFreeFree
Rating—4.5 (1.1K ratings) — better
Positive reviews20.6% of reviews73.3% of reviews — better
Number of ratings—1.1K — better
Update frequencyEvery 8 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size14 MB8 MB
Age rating4+4+
DeveloperEmanuele FlorisJulyApps Ltd

Customer experience

Secure Notes

Written reviews34 reviews
Positive20.6%
Neutral14.7%
Negative64.7%

Lock Notes

All ratings1,149 ratings
Positive89.6%
Neutral1.4%
Negative9.0%
Written reviews834 reviews
Positive73.3%
Neutral6.1%
Negative20.6%

Bugs and requests

Secure Notes

Not enough reviews yet to summarise bugs or requests.

Lock Notes

Reported bugs

3 issues
  • Notes disappearing after updates
  • Inability to access notes after device reset
  • Sync issues between devices

Requested features

5 requests
  • Advanced formatting options
  • Ability to change passcode
  • Improved search capabilities
  • Folder/organization system
  • Better backup and restore options

In-app purchases

2 purchases

Secure Notes

Subscriptions2
  • Unlimited Access3 Days trial$0.991 Month
  • Unlimited Access3 Days trial$2.991 Year
3 purchases

Lock Notes

Subscriptions1
  • Auto Backup$14.991 Year
One-time2
  • Unlimited Notes$4.99
  • Lock Notes Pro$9.99

Questions

Is Secure Notes free?
Secure Notes is free to download, with in-app purchases available.
Is Lock Notes free?
Lock Notes is free to download, with in-app purchases available.
Do Secure Notes or Lock Notes have ads?
Neither Secure Notes nor Lock Notes shows ads.
Which is updated more often, Secure Notes or Lock Notes?
Secure Notes ships an update every 8 months, and Lock Notes every 10 days. Most recently, Secure Notes was updated on October 8, 2026 and Lock Notes on October 14, 2026.

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