# Biometric Notes vs App Lock

The clearest difference is review sentiment: Biometric Notes at 100% against App Lock's 33%. Biometric Notes also leads on in-app purchases (none vs 10) and iOS requirement (12.0 vs 16.0). App Lock's advantage is price (Free vs $1.99) and update cadence (every 4 days vs every 10 months). On ads and device support there is nothing between them.

App Lock is free to download; Biometric Notes costs $1.99 up front. App Lock sells 10 in-app purchases, starting at $3.99 per 7 days. Biometric Notes asks for nothing beyond the download.

Biometric Notes ships an update every 10 months, App Lock every 4 days. The most recent releases landed on June 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Biometric Notes | App Lock |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.5 (348 ratings)](https://appshunter.io/ios/app/app-lock-password-for-apps/id6746766591/reviews)** |
| Number of ratings | — | **348** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 days** |
| Monetization | **Paid** | Subscription |
| Size | 10 MB | 48 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mohammad Masri](https://appshunter.io/developer/975614455) | [LYKOV STUDIO LTD](https://appshunter.io/developer/1783754094) |

## What reviewers say

### Biometric Notes

[App page](https://appshunter.io/ios/app/biometric-notes/id991357855)

Securely store and manage all your sensitive information, including passwords, PINs, and private notes, using biometric authentication like Face ID and Touch ID. Organize your data with unlimited notes and lists, ensuring your private files are protected from unauthorized access.

**Highlights:** Biometric authentication (Face ID, Touch ID), Unlimited note creation, Organize with lists, Emoji support, Offline functionality, Secure personal diary

**Features:** macOS Compatibility

**In-app purchases:** none


### App Lock

[App page](https://appshunter.io/ios/app/app-lock-password-for-apps/id6746766591)

Take control of your device by instantly locking any application. Block distractions, protect sensitive data, or manage screen time with scheduled locking and biometric authentication. Secure up to 50 apps with a clean, private, and offline experience.

**Highlights:** Lock apps with Face ID/fingerprint, Lock directly from widgets, Scheduled app locking, Lock up to 50 apps, Private and offline operation, Native iOS design

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Weekly | $5.99 | per 7 days |
| Weekly | $7.99 | per 7 days |
| Annual | $14.99 | per year |
| Yearly | $18.99 | per year |
| Yearly | $29.99 | per year |
| Annual | $29.99 | per year |
| Annual | $29.99 | per year |
| Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Biometric Notes free?

Biometric Notes costs $1.99, with no in-app purchases.

### Is App Lock free?

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

### Do Biometric Notes or App Lock have ads?

Neither Biometric Notes nor App Lock shows ads.

### Which is updated more often, Biometric Notes or App Lock?

Biometric Notes ships an update every 10 months, and App Lock every 4 days. Most recently, Biometric Notes was updated on June 7, 2026 and App Lock on September 22, 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.*