Comparison

LOCK MEMO vs Completely Private Notes

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

Head to head
About

LOCK MEMO

This app offers a straightforward way to create and manage private notes with robust passcode protection. It's designed for intuitive use, requiring no complex setup to keep your personal information, ideas, and daily entries secure and organized.

Highlights
  • Passcode protection
  • Create and edit notes
  • Folder management
  • Search notes
  • iCloud backup
  • Adjustable font size
Read full description

LOCK MEMO is a simple and secure note app with password protection. Designed with simplicity in mind, anyone can use it intuitively without complicated steps. No complex setup is required. Start using it today. ※ Password protection must be enabled in settings. ** Features ** • Create and edit notes • Passcode protection • Adjust font size • Character and line counter • Search notes • Folder management • iCloud backup • URL scheme (pwmm:) Perfect for storing private information, ideas, daily notes, and personal content securely. Keep your notes safe and organized with LOCK MEMO. ■ Terms of Use https://eeggs.jp/terms-of-use-en

About

Completely Private Notes

Features
Read full description

A quiet place for notes you want to keep to yourself. Completely Private Notes stores encrypted text and images only on your iPhone. Pay once. No subscriptions. • No server communication, accounts, ads or analytics • A 6–12 digit PIN and optional Face ID • Up to five encrypted images per note • A private camera that does not save shots to Photos • Search your notes and write immediately • Automatic locking when the app becomes inactive • No cloud sync, backup or export IMPORTANT There is no PIN reset, data recovery or transfer to a new device. Forgetting your PIN, losing your device or deleting the app can make your notes permanently inaccessible. Ten incorrect PIN attempts erase the encryption key and content. Protection does not extend to a compromised or jailbroken device, viewing or screenshots while unlocked, or originals imported from Photos or iCloud. Only the copy stored inside the app is encrypted. Face ID is optional; if enabled, anyone able to pass the device’s Face ID authentication may unlock the vault. Available in English, Japanese, German, Spanish, French, Italian, Korean, Portuguese, Russian and Simplified Chinese. Additional information: You can create, view and edit notes without an internet connection.

Screenshots

LOCK MEMO2 screens
Completely Private Notes4 screens

Verdict

The call

The clearest difference is price: LOCK MEMO at Free against Completely Private Notes's $1.99. Completely Private Notes's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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

LOCK MEMO is free to download; Completely Private Notes costs $1.99 up front. LOCK MEMO sells 1 in-app purchase, starting at $0.99 per month. Completely Private Notes asks for nothing beyond the download.

UpkeepUpdate frequency

LOCK MEMO ships an update monthly, Completely Private Notes fortnightly. Both last shipped on October 29, 2026.

Scorecard4 real differences · 6 level
LOCK MEMO versus Completely Private Notes: the parameters behind the verdict, then further details
ParameterLOCK MEMOCompletely Private Notes
PriceFree — better$1.99
Rating4.7 (496 ratings) — better—
Positive reviews74.5% of reviews—
Number of ratings496 — better—
Update frequencyMonthlyFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size33 MB1 MB
Age rating4+4+
DeveloperEasterEggsSOTEN, LLC.

Bugs and requests

LOCK MEMO

Reported bugs

6 issues
  • Notes disappearing from folders
  • Edit function becomes unavailable
  • App incompatible with newer iOS versions
  • Touch ID not functioning despite advertised
  • Password recovery issues
Show 1 more
  • App crashes or freezes

Requested features

9 requests
  • Alphabetical sorting of notes
  • Search functionality
  • Touch ID/biometric authentication
  • Text formatting options (bold, underline, italics)
  • Ability to share or export notes
Show 4 more
  • Picture upload capability
  • Increased storage space
  • Option to purchase ad-free version
  • Dark mode option

Completely Private Notes

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

LOCK MEMO

Subscriptions1
  • Premium Plan$0.991 Month
None

Completely Private Notes

No in-app purchases

Questions

Is LOCK MEMO free?
LOCK MEMO is free to download, with in-app purchases available.
Is Completely Private Notes free?
Completely Private Notes costs $1.99, with no in-app purchases.
Do LOCK MEMO or Completely Private Notes have ads?
LOCK MEMO shows ads; Completely Private Notes does not.
Which is updated more often, LOCK MEMO or Completely Private Notes?
LOCK MEMO ships an update monthly, and Completely Private Notes fortnightly. Most recently, LOCK MEMO was updated on October 29, 2026 and Completely Private Notes on October 29, 2026.

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