# App lock vs Smartgasapp

The clearest difference is in-app purchases: Smartgasapp at none against App lock's 3. Smartgasapp also leads on update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. App lock sells 3 in-app purchases, starting at $3.99 per month. Smartgasapp asks for nothing beyond the download.

App lock ships an update every 2 weeks, Smartgasapp every 2 days. The most recent releases landed on September 18, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | App lock | Smartgasapp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (757 ratings)](https://appshunter.io/ios/app/app-lock-passcode-lock-apps/id1592938462/reviews)** | — |
| Number of ratings | **757** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 27 MB |
| Requires iOS | 14.1 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Changsha baixing Network Technology Co., Ltd](https://appshunter.io/developer/1588591156) | [Esyasoft](https://appshunter.io/developer/1746042220) |

## What reviewers say

### App lock

[App page](https://appshunter.io/ios/app/app-lock-passcode-lock-apps/id1592938462)

Secure your apps with custom passwords and personalized icons. This utility allows you to hide apps, change their appearance, and set up biometric unlocking for enhanced privacy and a unique device aesthetic.

**Highlights:** Lock and hide apps, Customize app icons with photos or built-in library, Personalize app names, Set passcode locks, Support TouchID/FaceID unlocking, Batch customization of icons and names

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 应用图标锁高级版月订阅 | $3.99 | per month |
| 应用图标锁高级版包季订阅 | $5.99 | per 3 months |
| 应用图标锁一次性购买永久解锁划算 | $14.99 | one-time |

**What reviewers like**

- 🔒 Secure app locking
- 💡 Customization options

**What reviewers complain about**

- 🚫 Requires subscription for basic features
- 🌐 Non-English interface
- ⚠️ Unreliable functionality
- 💰 Expensive pricing

**Reported bugs**

- App crashes frequently
- Locked apps can still be accessed
- Subscription issues

**Requested features**

- Add English language support
- Improve user interface
- Provide free trial option


### Smartgasapp

[App page](https://appshunter.io/ios/app/smartgasapp/id6502594677)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is App lock free?

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

### Is Smartgasapp free?

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

### Do App lock or Smartgasapp have ads?

Neither App lock nor Smartgasapp shows ads.

### Which is updated more often, App lock or Smartgasapp?

App lock ships an update every 2 weeks, and Smartgasapp every 2 days. Most recently, App lock was updated on September 18, 2026 and Smartgasapp on May 16, 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.*