Comparison

LOCK MEMO vs Lunar Timer

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

Lunar Timer

Read full description

Lunar Timer is a calendar and timer app that notifies you of celestial events — new moons, full moons, and moon transitions. Track the moon's status in real time and stay on top of your schedule. 【Home Screen】 ・Displays the next transition start/end time ・Visual progress bar showing the current phase ・Real-time moon status display (tap to toggle illustrations) 【Push Notifications】 ・Moon transitions: 2 hours before / at start / at end ・New Moon: notified at the exact moment ・Full Moon: notified at a set time on the day of the event *Notification timing is adjusted based on transition periods. ・Automatic silent mode from midnight to 6:00 AM ・Delivered in your device's local time — works worldwide 【Calendar & Reminders Integration】 ・Sync with the default iOS Calendar and Reminders apps ・Register events for the current and next 3 months at once ・Choose your preferred destination list ・Auto-sync: updates to the latest data each month ・Alarm (notification) settings: - Notifications ON: registered at the same timing as push notifications (excludes transition end notifications) - Notifications OFF: registered at each event's start time *For transitions: Calendar registers both start and end times. Reminders register the start time only (end time shown in the title). *Do not delete the Identifier ID in the event notes. It is required for auto-updates and bulk deletion. 【Widgets & Live Activities】 ・Check upcoming events from your home screen without opening the app ・Open the app during a transition to display the end time via Live Activities ・Dynamic Island supported (compatible devices only) 【Premium Plan (Auto-Renewing Subscription)】 ・Ad-free experience ・Annual Schedule (yearly calendar view) ・Annual List (yearly event list) ・Memo feature for each date (quick notes & detailed entries) ■ Subscription Details ・Plan: Premium Plan ・Duration: 1 month (auto-renewing) ・Price: See the in-app purchase screen for pricing in your region. - Payment is charged to your Apple ID. - Automatically renews unless turned off at least 24 hours before the renewal date. - Auto-renewal can be managed anytime in your Apple ID settings. - Use "Restore Purchases" to recover premium features after switching devices. This app is an informational tool that displays the timing of lunar events. It does not guarantee any specific results or outcomes. For questions or bug reports, please use the Contact form in the app's Settings screen.

Screenshots

LOCK MEMO2 screens
Lunar Timer4 screens

Verdict

The call

The clearest difference is update cadence: Lunar Timer at every 9 days against LOCK MEMO's monthly. 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. LOCK MEMO sells 1 in-app purchase, starting at $0.99 per month and Lunar Timer sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

LOCK MEMO ships an update monthly, Lunar Timer every 9 days. The most recent releases landed on September 27, 2026 and September 11, 2026 respectively.

Scorecard1 real difference · 9 level
LOCK MEMO versus Lunar Timer: the parameters behind the verdict, then further details
ParameterLOCK MEMOLunar Timer
PriceFreeFree
Rating4.7 (495 ratings) — better—
Positive reviews74.5% of reviews—
Number of ratings495 — better—
Update frequencyMonthlyEvery 9 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better17.6
Further details — not scored
Size33 MB21 MB
Age rating4+4+
DeveloperEasterEggsATSUKO MOTOYAMA

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

Lunar Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

LOCK MEMO

Subscriptions1
  • Premium Plan$0.991 Month
1 purchases

Lunar Timer

Subscriptions1
  • Premium Plan3 Days trial$1.991 Month

Questions

Is LOCK MEMO free?
LOCK MEMO is free to download, with in-app purchases available.
Is Lunar Timer free?
Lunar Timer is free to download, with in-app purchases available.
Do LOCK MEMO or Lunar Timer have ads?
Both LOCK MEMO and Lunar Timer show ads.
Which is updated more often, LOCK MEMO or Lunar Timer?
LOCK MEMO ships an update monthly, and Lunar Timer every 9 days. Most recently, LOCK MEMO was updated on September 27, 2026 and Lunar Timer on September 11, 2026.

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