LOCK MEMO vs Lunar Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Passcode protection
- Create and edit notes
- Folder management
- Search notes
- iCloud backup
- Adjustable font size
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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
Lunar Timer
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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 moon transition start and end times ・Visual progress bar showing the current progress ・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 moon transition periods. ・Automatic silent mode from midnight to 6:00 AM ・Notifications are delivered in your device's local time — works worldwide 【Calendar & Reminders Integration】 ・Sync with the default iOS Calendar and Reminders apps ・Register the latest 3 months of events at once ・Choose your preferred destination list ・Auto-update: keeps event data up to date each month ・Alarm settings: * Notifications ON: registered at the same timing as push notifications (excluding transition end notifications) * Notifications OFF: registered at each event's start time For moon transitions, Calendar registers both start and end times. Reminders register the start time only (the end time is shown in the title). Do not delete the Identifier in the event notes. It is required for automatic updates and bulk deletion. 【Annual Schedule & Memos】 ・Annual Schedule view ・Annual event list ・Memos for each date (quick notes & detailed entries) 【Widgets & Live Activities】 ・Check upcoming events from your home screen without opening the app ・Open the app during a moon transition to display the end time via Live Activities ・Dynamic Island supported (compatible devices only) 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
Verdict
LOCK MEMO and Lunar Timer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
LOCK MEMO ships an update monthly, Lunar Timer every 2 weeks. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.
| Parameter | LOCK MEMO | Lunar Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (495 ratings) — better | — |
| Positive reviews | 74.5% of reviews | — |
| Number of ratings | 495 — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 33 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | EasterEggs | ATSUKO 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 moreShow fewer
- 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 moreShow fewer
- 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
LOCK MEMO
- Premium Plan$0.991 Month
Lunar Timer
- Premium Plan3 Days trial$1.991 Month
Questions
Is LOCK MEMO free?
Is Lunar Timer free?
Do LOCK MEMO or Lunar Timer have ads?
Which is updated more often, LOCK MEMO or Lunar Timer?
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