# Square Root Calculator vs Audio Fastlane

The clearest difference is price: Audio Fastlane at Free against Square Root Calculator's $0.99. Square Root Calculator's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support there is nothing between them.

Audio Fastlane is free to download; Square Root Calculator costs $0.99 up front. Audio Fastlane sells 4 in-app purchases, starting at $24.99 per month. Square Root Calculator asks for nothing beyond the download.

## The numbers

| Metric | Square Root Calculator | Audio Fastlane |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 74 MB |
| Requires iOS | **14.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [Henry Peace](https://appshunter.io/developer/6787689360) |

## What reviewers say

### Square Root Calculator

[App page](https://appshunter.io/ios/app/square-root-calculator/id6443969012)

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

**In-app purchases:** none


### Audio Fastlane

[App page](https://appshunter.io/ios/app/audio-fastlane/id6787689358)

This app transforms study materials for maritime and aviation certifications into audiobooks. It offers features like synchronized reading, visual recaps, and exam-style questions to aid learning. Progress tracking and offline downloads enhance the study experience.

**Highlights:** Audiobook learning for certifications, Synchronized read-along feature, Visual animated diagram recaps, Exam-style practice questions, Personalized study routes, Offline content downloads, Progress tracking and goals

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access – 1 Month | $24.99 | per month |
| All Access – 3 Months | $59.99 | per 3 months |
| All Access – 6 Months | $99.99 | per 6 months |
| All Access – 12 Months | $149.99 | per year |


## Frequently asked questions

### Is Square Root Calculator free?

Square Root Calculator costs $0.99, with no in-app purchases.

### Is Audio Fastlane free?

Audio Fastlane is free to download, with in-app purchases available.

### Do Square Root Calculator or Audio Fastlane have ads?

Audio Fastlane shows ads; Square Root Calculator does not.

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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.*