# Logarithm vs SAT Study Guide

The clearest difference is price: SAT Study Guide at Free against Logarithm's $3.99. SAT Study Guide also leads on iOS requirement (15 vs 17.0). Logarithm's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

SAT Study Guide is free to download; Logarithm costs $3.99 up front. SAT Study Guide sells 1 one-off in-app purchase. Logarithm asks for nothing beyond the download.

## The numbers

| Metric | Logarithm | SAT Study Guide |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gomathy Shankaran](https://appshunter.io/developer/503956143) | [Yasir Gasim Hamid Hassan](https://appshunter.io/developer/1881239610) |

## What reviewers say

### Logarithm

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

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

**In-app purchases:** none


### SAT Study Guide

[App page](https://appshunter.io/ios/app/sat-study-guide-sat-prep-test/id6763481945)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SAT Study Guide Pro | $9.99 | one-time |


## Frequently asked questions

### Is Logarithm free?

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

### Is SAT Study Guide free?

SAT Study Guide is free to download, with in-app purchases available.

### Do Logarithm or SAT Study Guide have ads?

Neither Logarithm nor SAT Study Guide 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.*