# Lock Notes Pro vs ChatProof

The clearest difference is price: ChatProof at Free against Lock Notes Pro's $9.99. ChatProof also leads on in-app purchases (none vs 1). Lock Notes Pro's advantage is iOS requirement (13.0 vs 17.0). On update cadence, ads and device support there is nothing between them.

ChatProof is free to download; Lock Notes Pro costs $9.99 up front. Lock Notes Pro sells 1 in-app purchase, starting at $14.99 per year. ChatProof asks for nothing beyond the download.

Lock Notes Pro ships an update every 2 weeks, ChatProof every 3 weeks. The most recent releases landed on October 12, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Lock Notes Pro | ChatProof |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.6 (270 ratings)](https://appshunter.io/ios/app/lock-notes-pro/id1052612947/reviews)** | — |
| Number of ratings | **270** | — |
| Positive reviews | 82.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Paid | — |
| Size | 8 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [JulyApps Ltd](https://appshunter.io/developer/427694580) | [KRISHNA PINNAMANENI](https://appshunter.io/developer/1880298048) |

## What reviewers say

### Lock Notes Pro

[App page](https://appshunter.io/ios/app/lock-notes-pro/id1052612947)

Securely store and protect your private notes with password or Touch ID access. This app allows you to keep sensitive information like passwords, secrets, and diaries safe from unauthorized viewing. It offers features like iCloud backup and syncing, image insertion, and printing.

**Highlights:** Password and Touch ID protection, iCloud backup and sync, Insert images and photos, Print notes, Sort and customize notes, Security question recovery

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto Backup | $14.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🔒 Secure storage of notes
- 💡 Useful for organizing personal information
- 🚀 Efficient app performance
- 🔒 Password protection for notes

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔒 Concerns about data loss or backup issues
- 🔒 Difficulty restoring notes from backup
- 💡 Lack of advanced features like checklists or reminders

**Reported bugs**

- Crashes after iOS updates
- Unable to edit or update notes without losing data
- Syncing issues between devices

**Requested features**

- Add checklist functionality
- Implement a recycle bin for deleted notes
- Improve syncing and backup options
- Add more customization options for font, layout, etc.


### ChatProof

[App page](https://appshunter.io/ios/app/chatproof/id6773136944)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lock Notes Pro free?

Lock Notes Pro costs $9.99, and also offers in-app purchases.

### Is ChatProof free?

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

### Do Lock Notes Pro or ChatProof have ads?

Neither Lock Notes Pro nor ChatProof shows ads.

### Which is updated more often, Lock Notes Pro or ChatProof?

Lock Notes Pro ships an update every 2 weeks, and ChatProof every 3 weeks. Most recently, Lock Notes Pro was updated on October 12, 2026 and ChatProof on September 25, 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.*