# Stupid Pupil vs 数学口算HD

The clearest difference is in-app purchases: Stupid Pupil at none against 数学口算HD's 7. 数学口算HD's advantage is iOS requirement (9.0 vs 11.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. 数学口算HD sells 7 one-off in-app purchases. Stupid Pupil asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Stupid Pupil against 5.0 for 数学口算HD. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Stupid Pupil | 数学口算HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/stupid-pupil/id954158605/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/hd/id1632726087/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 171 MB | 4 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UYO Entertainment Inc.](https://appshunter.io/developer/873521902) | [摇摇 章](https://appshunter.io/developer/1570032236) |

## What reviewers say

### Stupid Pupil

[App page](https://appshunter.io/ios/app/stupid-pupil/id954158605)

This educational game challenges elementary students with math problems. It offers two modes: an endless progression of questions and a timed race to achieve the highest score. It's designed to test and improve quick math skills without the use of calculators.

**Highlights:** Endless math challenge mode, 60-second timed race mode, Bonus points for consecutive correct answers, Timed bonus for correct answers, No calculators allowed

**Features:** macOS Compatibility

**In-app purchases:** none


### 数学口算HD

[App page](https://appshunter.io/ios/app/hd/id1632726087)

This app simulates paper-based math drills for elementary students, offering customizable practice tests, automatic grading, and detailed error analysis. It covers addition, subtraction, multiplication, division, decimals, and fractions for grades 1-6, with a large question bank and printable options.

**Highlights:** Simulated paper test experience, Customizable test generation, Automatic grading and error analysis, Printable practice sheets, Grade-level specific question bank, Handwriting practice area

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一年级口算 | $2.99 | one-time |
| 二年级口算 | $2.99 | one-time |
| 三年级口算 | $2.99 | one-time |
| 四年级口算 | $2.99 | one-time |
| 五年级口算 | $2.99 | one-time |
| 六年级口算 | $2.99 | one-time |
| 数学口算至尊VIP | $4.99 | one-time |


## Frequently asked questions

### Is Stupid Pupil free?

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

### Is 数学口算HD free?

数学口算HD is free to download, with in-app purchases available.

### Which has better reviews, Stupid Pupil or 数学口算HD?

Stupid Pupil and 数学口算HD are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do Stupid Pupil or 数学口算HD have ads?

Neither Stupid Pupil nor 数学口算HD shows ads.

### Which is updated more often, Stupid Pupil or 数学口算HD?

Stupid Pupil ships an update every 6 months, and 数学口算HD every 6 months. Most recently, Stupid Pupil was updated on November 11, 2026 and 数学口算HD on November 7, 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.*