# Handy Art Reference Tool vs 数学口算练习

The clearest difference is in-app purchases: 数学口算练习 at none against Handy Art Reference Tool's 2. 数学口算练习 also leads on price ($0.99 vs $1.99) and iOS requirement (10.0 vs 15.0). Handy Art Reference Tool's advantage is rating (4.8 vs 4.5) and ratings volume (1.2K vs 34). On review sentiment, ads and device support there is nothing between them.

Handy Art Reference Tool costs $1.99 and 数学口算练习 $0.99 up front. Handy Art Reference Tool sells 2 one-off in-app purchases. 数学口算练习 asks for nothing beyond the download.

Handy Art Reference Tool holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Handy Art Reference Tool has 1.2K ratings behind it against 34, so its average is the more settled of the two. Written reviews complicate that: 85% of Handy Art Reference Tool's written reviews are positive against 91% of 数学口算练习's, so the app with the better star average is not the one people write more warmly about.

Handy Art Reference Tool ships an update every 5 months, 数学口算练习 every 12 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Handy Art Reference Tool | 数学口算练习 |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.8 (1.2K ratings)](https://appshunter.io/ios/app/handy-art-reference-tool/id478643661/reviews)** | [4.5 (34 ratings)](https://appshunter.io/ios/app/id1665809560/reviews) |
| Number of ratings | **1.2K** | 34 |
| Positive reviews | 85.0% of reviews | **90.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 12 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#63** | — |
| Size | 361 MB | 37 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Belief Engine](https://appshunter.io/developer/478643664) | [森 袁](https://appshunter.io/developer/513885536) |

## What reviewers say

### Handy Art Reference Tool

[App page](https://appshunter.io/ios/app/handy-art-reference-tool/id478643661)

**Currently charting:** #63 Top Paid · Education (US App Store)

This app provides artists with rotatable 3D models of hands, heads, and feet for drawing reference. Customize poses and lighting to achieve realistic results for your artwork. Additional packs for animal skulls and foot rigs are available for purchase.

**Highlights:** Rotatable 3D limb models, Customizable poses, Adjustable 3-point lighting, 3D head busts, Animal skull reference pack, Material editing

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Feet Models | $1.99 | one-time |
| Animal Skull Pack | $1.99 | one-time |

**What reviewers like**

- 👍 Helpful for drawing reference
- 🔍 Useful for lighting and shading
- 🎨 Great for hands and heads
- 💡 Customizable lighting and poses
- 🎨 Diverse skin tone options

**What reviewers complain about**

- 🐛 Crashes or freezes on some devices
- 💰 In-app purchases for additional content
- 🤔 Limited model variety (no full bodies)
- 🤔 Difficulty with precise positioning
- 🤔 Lighting controls could be improved

**Reported bugs**

- Crashes on launch for some users
- Purchased content not unlocking
- Positioning and movement issues

**Requested features**

- Add full body models and poses
- Include more facial expressions and emotions
- Allow for custom hand and finger posing
- Implement ability to save custom poses
- Add more diverse skin tones and ethnicities


### 数学口算练习

[App page](https://appshunter.io/ios/app/id1665809560)

This app offers a fun way for elementary school students to practice mental math and vertical calculations. It includes features like a practice log and a mistake notebook to help children improve their math skills through engaging activities.

**Highlights:** Mental math practice, Vertical calculation practice, Mistake notebook, Practice records, Math skill improvement, Early math education

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Handy Art Reference Tool free?

Handy Art Reference Tool costs $1.99, and also offers in-app purchases.

### Is 数学口算练习 free?

数学口算练习 costs $0.99, with no in-app purchases.

### Which has better reviews, Handy Art Reference Tool or 数学口算练习?

Handy Art Reference Tool is rated higher. Handy Art Reference Tool averages 4.8 out of 5 from 1.2K ratings, while 数学口算练习 averages 4.5 from 34 ratings.

### Do Handy Art Reference Tool or 数学口算练习 have ads?

Neither Handy Art Reference Tool nor 数学口算练习 shows ads.

### Which is updated more often, Handy Art Reference Tool or 数学口算练习?

Handy Art Reference Tool ships an update every 5 months, and 数学口算练习 every 12 months. Most recently, Handy Art Reference Tool was updated on September 24, 2026 and 数学口算练习 on September 23, 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.*