# Secret Diary with Locks vs Two Factor Authenticator & OTP

The clearest difference is review sentiment: Two Factor Authenticator & OTP at 100% against Secret Diary with Locks's 50%. Two Factor Authenticator & OTP also leads on update cadence (every 2 days vs every 3 months). Secret Diary with Locks's advantage is monetization model (free with in-app purchases vs subscription). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Secret Diary with Locks sells 1 in-app purchase, starting at $0.99 per year and Two Factor Authenticator & OTP sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Secret Diary with Locks ships an update every 3 months, Two Factor Authenticator & OTP every 2 days. The most recent releases landed on August 23, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Secret Diary with Locks | Two Factor Authenticator & OTP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (133 ratings)](https://appshunter.io/ios/app/two-factor-authenticator-and-otp/id6738425763/reviews)** |
| Number of ratings | — | **133** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 10 MB | 26 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harshad Jadav](https://appshunter.io/developer/1687259507) | [HENRY FOSTER](https://appshunter.io/developer/1851206362) |

## What reviewers say

### Secret Diary with Locks

[App page](https://appshunter.io/ios/app/secret-diary-with-locks/id6449743044)

Securely record your thoughts, memories, and personal moments with this private journal app. Protect your entries with a password, PIN, or biometric authentication. All data is stored locally and encrypted for complete privacy.

**Highlights:** Password, PIN, or biometric unlock, AES 256-bit encryption, Offline local storage, Unlimited entries, Advanced search, No internet permission

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Ad-Free - Annual | $0.99 | per year |


### Two Factor Authenticator & OTP

[App page](https://appshunter.io/ios/app/two-factor-authenticator-and-otp/id6738425763)

Enhance your online security with robust two-factor and multi-factor authentication. This app generates secure one-time passwords and supports multiple protocols, with features like backup, restore, and encrypted data storage for peace of mind.

**Highlights:** Two-Factor Authentication (2FA), Multi-Factor Authentication (MFA), TOTP and HOTP Support, Backup & Restore, User-Friendly Design, Encrypted Data Storage

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Free Trial PRO Access | $6.99 | per 7 days |
| Weekly PRO Access | $6.99 | per 7 days |


## Frequently asked questions

### Is Secret Diary with Locks free?

Secret Diary with Locks is free to download, with in-app purchases available.

### Is Two Factor Authenticator & OTP free?

Two Factor Authenticator & OTP is free to download, with in-app purchases available.

### Do Secret Diary with Locks or Two Factor Authenticator & OTP have ads?

Neither Secret Diary with Locks nor Two Factor Authenticator & OTP shows ads.

### Which is updated more often, Secret Diary with Locks or Two Factor Authenticator & OTP?

Secret Diary with Locks ships an update every 3 months, and Two Factor Authenticator & OTP every 2 days. Most recently, Secret Diary with Locks was updated on August 23, 2026 and Two Factor Authenticator & OTP on August 26, 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.*