# Lockbook vs Memz LLM

The clearest difference is in-app purchases: Memz LLM at none against Lockbook's 1. Memz LLM also leads on update cadence (every 3 days vs weekly) and iOS requirement (13.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Lockbook sells 1 in-app purchase, starting at $2.99 per month. Memz LLM asks for nothing beyond the download.

Lockbook ships an update weekly, Memz LLM every 3 days. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Lockbook | Memz LLM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (14 ratings)](https://appshunter.io/ios/app/lockbook-private-notes/id1526775001/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 67 MB | 28 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lockbook LLC](https://appshunter.io/developer/1526775003) | [AppBridge Inc.](https://appshunter.io/developer/1866458100) |

## What reviewers say

### Lockbook

[App page](https://appshunter.io/ios/app/lockbook-private-notes/id1526775001)

A secure, open-source note-taking app prioritizing user privacy. It encrypts all your data locally, ensuring only you and authorized users can access your notes. Offers seamless syncing and sharing across devices, with a developer-friendly command-line interface.

**Highlights:** End-to-end encryption, Open-source code, Cross-device syncing, Note sharing, Developer CLI, No personal data collection

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30GB | $2.99 | per month |


### Memz LLM

[App page](https://appshunter.io/ios/app/memz-llm/id6777074142)

**In-app purchases:** none


## Frequently asked questions

### Is Lockbook free?

Lockbook is free to download, with in-app purchases available.

### Is Memz LLM free?

Memz LLM is free to download, with no in-app purchases.

### Do Lockbook or Memz LLM have ads?

Neither Lockbook nor Memz LLM shows ads.

### Which is updated more often, Lockbook or Memz LLM?

Lockbook ships an update weekly, and Memz LLM every 3 days. Most recently, Lockbook was updated on October 18, 2026 and Memz LLM on October 19, 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.*