Comparison

Lock Notes vs MemoP

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

Head to head
About

Lock Notes

Securely store private thoughts, passwords, and reminders with biometric authentication. Enjoy a simple, elegant interface with iCloud sync, customizable themes, and backup options. Your data remains private and encrypted.

Highlights
  • Biometric authentication (Face ID, Touch ID)
  • Encrypted note storage
  • iCloud sync across devices
  • Customizable themes and dark mode
  • Backup and restore functionality
  • Ad-free minimalist interface
Features
Read full description

Keep your secrets safe. Secret Notes is the most secure and elegant way to store private thoughts, passwords, ideas, and personal reminders — all protected with Face ID, Touch ID, or a passcode. Why Secret Notes? • Secure your privacy Your notes are encrypted and protected with biometric authentication. Only you have access. • Simple and elegant No ads, no distractions. Just a beautiful, minimalist notepad with powerful features. • iCloud Sync Access your notes across all your iOS devices. Changes are synced automatically and securely. • Dark mode and themes Comfort for your eyes, day and night. Choose the style that fits your mood. • Backup and restore Never lose a note. Backup your data and restore it in seconds. Perfect for: • Personal journals • Sensitive work notes • Password hints • Private to-dos • Anything you want to keep hidden Your privacy is our priority. We don’t collect any personal data, and everything stays on your device or iCloud. Write freely. Store safely. Stay private. Information about the auto-renewable nature of the subscription - The price of the subscription is $1.99 per month or $9.99 per year. Every month/year your subscription is auto-renewed. - Subscription automatically renews if automatic renewal is not turned off at least 24 hours before the end of the current period - Charging for renewal of subscription takes place within 24 hours before the end of the current period. - After the end of the trial period, the monthly subscription will begin with the price accepted in your country - Update, manage and unsubscribe according to Apple's rules in your iTunes account settings - You can cancel your subscription via this URL​: https://support.apple.com/en-us/HT202039 - Privacy Policy: https://lykovstudio.io/privacy - Terms of Use: https://lykovstudio.io/terms

About

MemoP

Securely store your notes with password protection and biometric authentication. Organize, edit, and share your memos with ease, featuring customizable backgrounds and search capabilities.

Highlights
  • Password lock with Touch ID/Face ID
  • Drag and drop memo organization
  • Swipe to delete notes
  • Direct sharing to messages and social media
  • Customizable backgrounds from photo albums
  • Search and character search functions
  • Adjustable font size and color
Features
Read full description

MemoP is a memo app with ease of operation, utility, password lock function. Compatible with Touch ID / Face ID. ◆ Password Lock function: - Password Lock can be selected. - When Password Lock setting is done, it will be locked when in the background etc, so it is safe. You can also set the Touch ID / Face ID. ◆ Edit function: - You can move memos by dragging and dropping. Deleting notes can also be done with swipe, and operability is simplified. - Because you can lock the edits, if you keep the important memo locked, you can prevent mistakes that you accidentally erase. - Selective deletion, all delete functions are also included ◆ Activity function: - Functions that can post directly to messages, mail, LINE, Twitter etc. ◆ Background selection function: - You can select the background of the main screen. In addition to existing patterns, you can also select and set images from photo albums. ◆ Search refinement function: - It is also possible to narrow down the target memo and display it by entering a search word. ◆ Character search function on the edit screen: - Even if you write a lot of notes, it is easy to find where you wrote it. ◆ Font setting: - Font size can be changed (list screen, memo editing screen) - Select font color on the memo edit screen (select from default, black, and gray) ※ The maximum number of characters that can be entered in one memo is 100,000 (6.0 or later). ※ Deleting an application will delete the saved memo data. ※ If the password is unknown, third parties can not invalidate the lock, so please be careful when managing the setting. ◆ Note: Ads will be hidden if you pay.

Screenshots

Lock Notes4 screens
MemoP4 screens

Verdict

The call

Lock Notes and MemoP both sit at 4.4 stars, but that hides the real split: 100% of MemoP's written reviews are positive against 55% of Lock Notes's. MemoP also leads on monetization model (free with in-app purchases vs subscription). Lock Notes's advantage is ads (none vs shown) and ratings volume (137 vs 28). On price, rating, update cadence and in-app purchases 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. Lock Notes sells 7 in-app purchases, starting at $4.99 per 7 days and MemoP sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Lock Notes against 4.5 for MemoP. Both are backed by a comparable volume of ratings — 137 and 28 respectively. Written reviews are what separate them: 55% of Lock Notes's written reviews are positive against 100% of MemoP's.

UpkeepUpdate frequency

Lock Notes ships an update every 10 days, MemoP every 2 weeks. The most recent releases landed on October 1, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 4 level
Lock Notes versus MemoP: the parameters behind the verdict, then further details
ParameterLock NotesMemoP
PriceFreeFree
Rating4.4 (137 ratings)4.5 (28 ratings) — better
Positive reviews55.3% of reviews100.0% of reviews — better
Number of ratings137 — better28
Update frequencyEvery 10 days — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size15 MB34 MB
Age rating4+4+
DeveloperLYKOV STUDIO LTDMasashi Sasaoka

Customer experience

Lock Notes

All ratings137 ratings
Positive83.2%
Neutral4.4%
Negative12.4%
Written reviews47 reviews
Positive55.3%
Neutral0.0%
Negative44.7%

MemoP

All ratings28 ratings
Positive89.3%
Neutral0.0%
Negative10.7%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

Lock Notes

Subscriptions5
  • Weekly$4.997 Days
  • Weekly3 Days trial$4.997 Days
  • Monthly$7.991 Month
Show 2 more
  • Annual$29.991 Year
  • Annual3 Days trial$29.991 Year
One-time2
  • Disable ads$0.99
  • Lifetime$39.99
1 purchases

MemoP

One-time1
  • Ad-free$1.99

Questions

Is Lock Notes free?
Lock Notes is free to download, with in-app purchases available.
Is MemoP free?
MemoP is free to download, with in-app purchases available.
Which has better reviews, Lock Notes or MemoP?
MemoP is rated higher. Lock Notes averages 4.4 out of 5 from 137 ratings, while MemoP averages 4.5 from 28 ratings.
Do Lock Notes or MemoP have ads?
MemoP shows ads; Lock Notes does not.
Which is updated more often, Lock Notes or MemoP?
Lock Notes ships an update every 10 days, and MemoP every 2 weeks. Most recently, Lock Notes was updated on October 1, 2026 and MemoP on September 18, 2026.

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