# Graphs and Slopes vs Book Builder

The clearest difference is update cadence: Book Builder at every 5 weeks against Graphs and Slopes's every 11 months. Graphs and Slopes's advantage is price ($2.99 vs $7.99) and iOS requirement (14.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Graphs and Slopes costs $2.99 and Book Builder $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Graphs and Slopes ships an update every 11 months, Book Builder every 5 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Graphs and Slopes | Book Builder |
| --- | --- | --- |
| Price | **$2.99** | $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 11 months | **Every 5 weeks** |
| Monetization | — | Paid |
| Size | 3 MB | 173 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gomathy Shankaran](https://appshunter.io/developer/503956143) | [Polished Play, LLC](https://appshunter.io/developer/332686547) |

## What reviewers say

### Graphs and Slopes

[App page](https://appshunter.io/ios/app/graphs-and-slopes/id1555122436)

**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 Graphs and Slopes free?

Graphs and Slopes costs $2.99, with no in-app purchases.

### Is Book Builder free?

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

### Do Graphs and Slopes or Book Builder have ads?

Neither Graphs and Slopes nor Book Builder shows ads.

### Which is updated more often, Graphs and Slopes or Book Builder?

Graphs and Slopes ships an update every 11 months, and Book Builder every 5 weeks. Most recently, Graphs and Slopes was updated on October 27, 2026 and Book Builder 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.*