# Lock Notes vs CalcPlus

The clearest difference is review sentiment: CalcPlus at 100% against Lock Notes's 55%. CalcPlus also leads on rating (5.0 vs 4.4) and monetization model (free with in-app purchases vs subscription). Lock Notes's advantage is ratings volume (138 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Lock Notes sells 7 in-app purchases, starting at $4.99 per 7 days and CalcPlus sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CalcPlus holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Lock Notes has 138 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 55% of Lock Notes's written reviews are positive against 100% of CalcPlus's.

Lock Notes ships an update every 10 days, CalcPlus fortnightly. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Lock Notes | CalcPlus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (138 ratings)](https://appshunter.io/ios/app/lock-notes-private-journal/id1211884686/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calcplus-hidden-notes/id6744618485/reviews)** |
| Number of ratings | **138** | 2 |
| Positive reviews | 55.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 21 MB | 1 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LYKOV STUDIO LTD](https://appshunter.io/developer/1783754094) | [Wildcatter LLC](https://appshunter.io/developer/1229934042) |

## What reviewers say

### Lock Notes

[App page](https://appshunter.io/ios/app/lock-notes-private-journal/id1211884686)

Securely store private thoughts, passwords, and reminders with biometric authentication. Enjoy a simple, elegant interface with iCloud sync, customizable themes, and backup options. Your data remains private and encrypted.

**Highlights:** Biometric authentication (Face ID, Touch ID), Encrypted note storage, iCloud sync across devices, Customizable themes and dark mode, Backup and restore functionality, Ad-free minimalist interface

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Monthly | $7.99 | per month |
| Annual | $29.99 | per year |
| Annual | $29.99 | per year |
| Disable ads | $0.99 | one-time |
| Lifetime | $39.99 | one-time |


### CalcPlus

[App page](https://appshunter.io/ios/app/calcplus-hidden-notes/id6744618485)

This app combines a fully functional calculator with a secure, encrypted notes system. Store sensitive information like crypto wallet phrases and passwords locally and offline, protected by a PIN and optional biometric authentication. It offers a discreet interface and prioritizes user privacy with no cloud sync or ads.

**Highlights:** Encrypted local notes storage, Calculator interface, PIN and biometric security, Offline functionality, Customizable themes and app icons, Auto-wipe on failed attempts

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcPlus Pro | $9.99 | one-time |


## Frequently asked questions

### Is Lock Notes free?

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

### Is CalcPlus free?

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

### Which has better reviews, Lock Notes or CalcPlus?

CalcPlus is rated higher. Lock Notes averages 4.4 out of 5 from 138 ratings, while CalcPlus averages 5.0 from 2 ratings.

### Do Lock Notes or CalcPlus have ads?

Neither Lock Notes nor CalcPlus shows ads.

### Which is updated more often, Lock Notes or CalcPlus?

Lock Notes ships an update every 10 days, and CalcPlus fortnightly. Most recently, Lock Notes was updated on October 10, 2026 and CalcPlus on October 2, 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.*