# Note Lock ~ Keep your secret vs Bathory Calculator

The clearest difference is price: Bathory Calculator at Free against Note Lock ~ Keep your secret's $1.99. Bathory Calculator also leads on in-app purchases (none vs 10) and review sentiment (86% vs 53%). Note Lock ~ Keep your secret's advantage is ads (none vs shown) and ratings volume (153 vs 10). On device support there is nothing between them.

Bathory Calculator is free to download; Note Lock ~ Keep your secret costs $1.99 up front. Note Lock ~ Keep your secret sells 10 in-app purchases, starting at $1.99 per month. Bathory Calculator asks for nothing beyond the download.

Bathory Calculator holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Note Lock ~ Keep your secret has 153 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 53% of Note Lock ~ Keep your secret's written reviews are positive against 86% of Bathory Calculator's.

Note Lock ~ Keep your secret ships an update every 2 months, Bathory Calculator every 2 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Note Lock ~ Keep your secret | Bathory Calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.0 (153 ratings)](https://appshunter.io/ios/app/note-lock-keep-your-secret/id469850764/reviews) | **[4.3 (10 ratings)](https://appshunter.io/ios/app/bathory-calculator/id1602831616/reviews)** |
| Number of ratings | **153** | 10 |
| Positive reviews | 53.0% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 51 MB | 29 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [i-App Creation Co., Ltd.](https://appshunter.io/developer/360704053) | [Grzegorz Antoniak](https://appshunter.io/developer/1602831618) |

## What reviewers say

### Note Lock ~ Keep your secret

[App page](https://appshunter.io/ios/app/note-lock-keep-your-secret/id469850764)

Securely store and manage private notes, ideas, and journals with advanced locking mechanisms and privacy features. Organize your thoughts with rich media, customization options, and backup capabilities.

**Highlights:** Folder and pattern lock, Anti-intruder surveillance, Self-destruct data option, Add pictures and stickers, Customizable themes and fonts, Backup and restore data, Calendar and hybrid views

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Note Lock PRO - Monthly | $1.99 | per month |
| Note Lock PRO - Yearly | $9.99 | per year |
| Pro Fonts | $1.99 | one-time |
| Special Fonts | $1.99 | one-time |
| Unique Fonts 1 | $1.99 | one-time |
| Unique Fonts 3 | $1.99 | one-time |
| Cute Fonts | $1.99 | one-time |
| Unique Fonts 2 | $1.99 | one-time |
| Unlock All Fonts | $6.99 | one-time |
| Unlock All In-app | $29.99 | one-time |

**What reviewers like**

- 🔒 Secure storage of private information
- 👍 Easy to use and intuitive interface
- 🚀 Quick access to notes
- 💡 Innovative decoy mode to deter snooping

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- 🔋 Concerns about data loss and lack of backup options
- 👎 Subscription model and loss of functionality in free version
- 🤯 Incompatibility with latest iOS versions

**Reported bugs**

- App crashes when opening notes
- Unable to rotate screen in landscape mode
- Password reset and migration issues when switching devices

**Requested features**

- Search function to easily find notes
- Ability to organize notes into folders
- Syncing and backup options (e.g., iCloud)
- Customization options for fonts, themes, and layouts


### Bathory Calculator

[App page](https://appshunter.io/ios/app/bathory-calculator/id1602831616)

This utility helps players invest in or reserve spots in other players' Great Buildings within the game Forge of Empires. It offers various calculation tools to assist with in-game investments and strategic planning.

**Highlights:** Great Building investment calculator, Reserve spots in Great Buildings, In-game investment tools, Strategic planning assistance, Multiple calculation options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Note Lock ~ Keep your secret free?

Note Lock ~ Keep your secret costs $1.99, and also offers in-app purchases.

### Is Bathory Calculator free?

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

### Which has better reviews, Note Lock ~ Keep your secret or Bathory Calculator?

Bathory Calculator is rated higher. Note Lock ~ Keep your secret averages 4.0 out of 5 from 153 ratings, while Bathory Calculator averages 4.3 from 10 ratings.

### Do Note Lock ~ Keep your secret or Bathory Calculator have ads?

Bathory Calculator shows ads; Note Lock ~ Keep your secret does not.

### Which is updated more often, Note Lock ~ Keep your secret or Bathory Calculator?

Note Lock ~ Keep your secret ships an update every 2 months, and Bathory Calculator every 2 weeks. Most recently, Note Lock ~ Keep your secret was updated on October 24, 2026 and Bathory Calculator on October 20, 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.*