# 冶金煤气作业题库 vs Memory Ace

The clearest difference is in-app purchases: Memory Ace at none against 冶金煤气作业题库's 10. Memory Ace also leads on update cadence (every 2 months vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 冶金煤气作业题库 sells 10 one-off in-app purchases. Memory Ace asks for nothing beyond the download.

冶金煤气作业题库 ships an update every 5 months, Memory Ace every 2 months. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 冶金煤气作业题库 | Memory Ace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/memory-ace-poker-order/id6664065166/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 88 MB | 47 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Changsha Xisai Liman Education Technology Co., Ltd](https://appshunter.io/developer/1466745593) | [Winter Tech .LTD](https://appshunter.io/developer/1722649978) |

## What reviewers say

### 冶金煤气作业题库

[App page](https://appshunter.io/ios/app/id1525845907)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1学币 | $0.99 | one-time |
| 10学币 | $0.99 | one-time |
| 40学币 | $5.99 | one-time |
| 50学币 | $6.99 | one-time |
| 三个月题库 | $11.99 | one-time |
| 三个月找答案+题库 | $14.99 | one-time |
| 100学币 | $14.99 | one-time |
| 120学币 | $17.99 | one-time |
| 150学币 | $19.99 | one-time |
| 300学币 | $39.99 | one-time |


### Memory Ace

[App page](https://appshunter.io/ios/app/memory-ace-poker-order/id6664065166)

Test and improve your card recall with this engaging memory game. Memorize a sequence of cards and then tap them in the correct order to restore the original pattern. Challenge yourself to achieve perfect accuracy and sharpen your cognitive skills.

**Highlights:** Memorize card sequences, Swipe to view cards, Tap cards in correct order, Time-based challenges, Improve memory skills, Track accuracy

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

**In-app purchases:** none


## Frequently asked questions

### Is 冶金煤气作业题库 free?

冶金煤气作业题库 is free to download, with in-app purchases available.

### Is Memory Ace free?

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

### Do 冶金煤气作业题库 or Memory Ace have ads?

Neither 冶金煤气作业题库 nor Memory Ace shows ads.

### Which is updated more often, 冶金煤气作业题库 or Memory Ace?

冶金煤气作业题库 ships an update every 5 months, and Memory Ace every 2 months. Most recently, 冶金煤气作业题库 was updated on October 6, 2026 and Memory Ace on October 24, 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.*