# AI作文 vs Practice Combination Lock

The clearest difference is in-app purchases: AI作文 at none against Practice Combination Lock's 3. AI作文 also leads on iOS requirement (11.0 vs 17.0). Practice Combination Lock's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Practice Combination Lock sells 3 one-off in-app purchases. AI作文 asks for nothing beyond the download.

## The numbers

| Metric | AI作文 | Practice Combination Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai/id6473424575/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 2 days |
| Monetization | Ad-supported | — |
| Size | 104 MB | 6 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Beijing Baijia Technology Co., Ltd.](https://appshunter.io/developer/1554599455) | [Chirag Mirani](https://appshunter.io/developer/1207300327) |

## What reviewers say

### AI作文

[App page](https://appshunter.io/ios/app/ai/id6473424575)

Upload images of essay prompts to access professional and engaging video explanations. This educational tool aims to help students understand and tackle writing assignments more effectively.

**Highlights:** Upload essay prompt images, Professional video explanations, Engaging video content, Educational assistance

**Features:** macOS Compatibility

**In-app purchases:** none


### Practice Combination Lock

[App page](https://appshunter.io/ios/app/practice-combination-lock/id6822015018)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small tip | $0.99 | one-time |
| Medium tip | $2.99 | one-time |
| Large tip | $4.99 | one-time |


## Frequently asked questions

### Is AI作文 free?

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

### Is Practice Combination Lock free?

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

### Do AI作文 or Practice Combination Lock have ads?

AI作文 shows ads; Practice Combination Lock does not.

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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.*