# Harbor Fuel vs App Lock

The clearest difference is in-app purchases: Harbor Fuel at none against App Lock's 8. Harbor Fuel also leads on ads (none vs shown) and iOS requirement (14.0 vs 16.0). App Lock's advantage is update cadence (every 3 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. App Lock sells 5 in-app purchases, starting at $4.99 per month. Harbor Fuel asks for nothing beyond the download.

Harbor Fuel ships an update every 4 months, App Lock every 3 weeks. The most recent releases landed on October 7, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Harbor Fuel | App Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (1.3K ratings)](https://appshunter.io/ios/app/app-lock-applock-apps/id6452721618/reviews)** |
| Number of ratings | — | **1.3K** |
| Positive reviews | — | 75.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 44 MB | 58 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Destwin LLC](https://appshunter.io/developer/1359900128) | [俊杰 刘](https://appshunter.io/developer/1634755293) |

## What reviewers say

### Harbor Fuel

[App page](https://appshunter.io/ios/app/harbor-fuel/id1532079149)

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

**In-app purchases:** none


### App Lock

[App page](https://appshunter.io/ios/app/app-lock-applock-apps/id6452721618)

Secure your personal privacy by locking any app with a password. This app also offers parental controls to monitor child's phone activity, prevent app deletion, and restrict new installations. Enhance your device's security by restricting account and password changes.

**Highlights:** App Lock, Password Lock, Parental Controls, Prevent App Deletion, Disable New App Installation, Restrict Account Changes

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $4.99 | per month |
| Monthly Membership | $7.99 | per month |
| Yearly Membership | $9.99 | per year |
| Yearly Membership | $19.99 | per year |
| Lifetime Membership | $34.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🔒 Secure app locking
- 🚀 Efficient performance
- 💕 Provides peace of mind

**What reviewers complain about**

- 🐛 Occasional issues with app unlocking
- 🔒 Concerns about settings changes
- ⚠️ Potential to lock out users

**Reported bugs**

- Locked apps not showing in settings
- Missed calls and messages when app is locked

**Requested features**

- Paid version with more features
- Ability to lock more than 50 apps


## Frequently asked questions

### Is Harbor Fuel free?

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

### Is App Lock free?

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

### Do Harbor Fuel or App Lock have ads?

App Lock shows ads; Harbor Fuel does not.

### Which is updated more often, Harbor Fuel or App Lock?

Harbor Fuel ships an update every 4 months, and App Lock every 3 weeks. Most recently, Harbor Fuel was updated on October 7, 2026 and App Lock on October 27, 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.*