# Book Builder vs Logarithm

The clearest difference is price: Logarithm at $3.99 against Book Builder's $7.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Book Builder costs $7.99 and Logarithm $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Book Builder | Logarithm |
| --- | --- | --- |
| Price | $7.99 | **$3.99** |
| 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 5 weeks | — |
| Monetization | Paid | — |
| Size | 173 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Polished Play, LLC](https://appshunter.io/developer/332686547) | [Gomathy Shankaran](https://appshunter.io/developer/503956143) |

## What reviewers say

### 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


### Logarithm

[App page](https://appshunter.io/ios/app/logarithm-exponent-polynomial/id6479218431)

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

**In-app purchases:** none


## Frequently asked questions

### Is Book Builder free?

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

### Is Logarithm free?

Logarithm costs $3.99, with no in-app purchases.

### Do Book Builder or Logarithm have ads?

Neither Book Builder nor Logarithm shows ads.

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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.*