# LOCK MEMO vs Lunar Timer

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.

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 9 days. The most recent releases landed on September 27, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | LOCK MEMO | Lunar Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (495 ratings)](https://appshunter.io/ios/app/lock-memo-secure-notes/id1070901429/reviews)** | — |
| Number of ratings | **495** | — |
| Positive reviews | 74.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 21 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [EasterEggs](https://appshunter.io/developer/553389214) | [ATSUKO MOTOYAMA](https://appshunter.io/developer/1868868796) |

## What reviewers say

### LOCK MEMO

[App page](https://appshunter.io/ios/app/lock-memo-secure-notes/id1070901429)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $0.99 | per month |

**What reviewers like**

- 👍 Very easy to use and intuitive
- 🔒 Password protection and security features
- 💾 Reliable for storing notes and important information
- ⚡ Simple and lightweight application
- 📝 Great for quick memos and memory jogger

**What reviewers complain about**

- 🐛 Notes disappearing unexpectedly
- 🐛 Edit function stops working after extended use
- 📱 Compatibility issues with newer iOS versions
- ❌ No alphabetical sorting capability
- ❌ No search functionality

**Reported bugs**

- Notes disappearing from folders
- Edit function becomes unavailable
- App incompatible with newer iOS versions
- Touch ID not functioning despite advertised
- Password recovery issues

**Requested features**

- Alphabetical sorting of notes
- Search functionality
- Touch ID/biometric authentication
- Text formatting options (bold, underline, italics)
- Ability to share or export notes


### Lunar Timer

[App page](https://appshunter.io/ios/app/lunar-timer/id6757776396)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $1.99 | per month |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*