# 中学数学平面図形 vs Book Builder

The clearest difference is price: 中学数学平面図形 at $1.99 against Book Builder's $7.99. 中学数学平面図形 also leads on iOS requirement (14.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

中学数学平面図形 costs $1.99 and Book Builder $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

中学数学平面図形 ships an update every 2 months, Book Builder every 5 weeks. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 中学数学平面図形 | Book Builder |
| --- | --- | --- |
| Price | **$1.99** | $7.99 |
| Rating | — | **[4.8 (13 ratings)](https://appshunter.io/ios/app/book-builder-school-edition/id6463655799/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Paid |
| Size | 15 MB | 173 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takatoshi Fukino](https://appshunter.io/developer/789538982) | [Polished Play, LLC](https://appshunter.io/developer/332686547) |

## What reviewers say

### 中学数学平面図形

[App page](https://appshunter.io/ios/app/id1503698510)

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

**In-app purchases:** none


### Book Builder

[App page](https://appshunter.io/ios/app/book-builder-school-edition/id6463655799)

Empower children to become authors by creating their own digital books. This app provides characters, backgrounds, and text tools to help kids craft unique stories. Finished books can be read digitally or printed at home, fostering creativity and learning.

**Highlights:** Create custom storybooks, Add text with easy-to-use options, Use provided characters and backgrounds, Incorporate personal photos, Read books digitally, Print books at home

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

**In-app purchases:** none


## Frequently asked questions

### Is 中学数学平面図形 free?

中学数学平面図形 costs $1.99, with no in-app purchases.

### Is Book Builder free?

Book Builder costs $7.99, with no in-app purchases.

### Do 中学数学平面図形 or Book Builder have ads?

Neither 中学数学平面図形 nor Book Builder shows ads.

### Which is updated more often, 中学数学平面図形 or Book Builder?

中学数学平面図形 ships an update every 2 months, and Book Builder every 5 weeks. Most recently, 中学数学平面図形 was updated on October 27, 2026 and Book Builder on November 3, 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.*