# Quick Compute vs 不背成语

The clearest difference is ads: 不背成语 at none against Quick Compute's shown. 不背成语 also leads on update cadence (every 2 weeks vs every 4 months). Quick Compute's advantage is iOS requirement (15.6 vs 17.0). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Quick Compute sells 1 one-off in-app purchase and 不背成语 sells 5 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Quick Compute against 5.0 for 不背成语. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Quick Compute ships an update every 4 months, 不背成语 every 2 weeks. The most recent releases landed on July 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Quick Compute | 不背成语 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/quick-compute/id1184768593/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id6739904191/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 12 MB | 62 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [涛 殷](https://appshunter.io/developer/478791127) | [帅 多](https://appshunter.io/developer/1835565967) |

## What reviewers say

### Quick Compute

[App page](https://appshunter.io/ios/app/quick-compute/id1184768593)

This app offers practice exercises and guidance for various mental math techniques. Users can select exercise types, enter answers, and review calculation processes to improve their speed and comprehension. It also supports batch question generation and tracks exercise history.

**Highlights:** Speed calculation techniques, Practice exercises, Comprehension support, Batch question generation, Exercise history tracking, Multiple formula examples

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RMB18-Ad Free | $2.99 | one-time |


### 不背成语

[App page](https://appshunter.io/ios/app/id6739904191)

This app helps users prepare for civil service and public institution exams by focusing on high-frequency idioms. It uses smart algorithms for spaced repetition and a dedicated error correction feature to improve memorization and accuracy.

**Highlights:** Smart memory algorithm, Error correction notebook, High-frequency idiom bank, Official media example sentences, Real exam context analysis, Ad-free experience

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $0.99 | per month |
| 年会员 | $3.99 | per year |
| 月度会员 | $6.99 | per month |
| 年度会员 | $12.99 | per year |
| 上岸护航 \| 终身卡 | $24.99 | one-time |


## Frequently asked questions

### Is Quick Compute free?

Quick Compute is free to download, with in-app purchases available.

### Is 不背成语 free?

不背成语 is free to download, with in-app purchases available.

### Which has better reviews, Quick Compute or 不背成语?

Quick Compute and 不背成语 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Quick Compute or 不背成语 have ads?

Quick Compute shows ads; 不背成语 does not.

### Which is updated more often, Quick Compute or 不背成语?

Quick Compute ships an update every 4 months, and 不背成语 every 2 weeks. Most recently, Quick Compute was updated on July 4, 2026 and 不背成语 on September 20, 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.*