# SAT 비법노트 vs Calculus Formulas

The clearest difference is iOS requirement: SAT 비법노트 at 9.0 against Calculus Formulas's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SAT 비법노트 sells 4 one-off in-app purchases and Calculus Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | SAT 비법노트 | Calculus Formulas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sat/id631703367/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 95.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 48 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POPEGG Co., Ltd.](https://appshunter.io/developer/433338054) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### SAT 비법노트

[App page](https://appshunter.io/ios/app/sat/id631703367)

This app offers comprehensive SAT preparation, focusing on Writing and Language sections with detailed strategies, grammar rules, and problem-solving techniques. It includes official SAT study guide solutions, an AI-powered assistant for step-by-step problem solving, a score calculator, and personalized study guides based on score ranges.

**Highlights:** SAT Writing and Language core concepts, Official SAT Study Guide solutions, AI-powered WL Assistant for problem-solving, SAT score calculator, Score-based study guides, Grammar and punctuation strategies

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 eggs | $0.99 | one-time |
| 20 eggs | $1.99 | one-time |
| A hen | $2.99 | one-time |
| One month's subscription pass | $4.99 | one-time |


### Calculus Formulas

[App page](https://appshunter.io/ios/app/calculus-formulas-calcref/id6761394165)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| CalcRef Yearly Premium | $44.99 | per year |
| CalcRef Premium Lifetime | $74.99 | one-time |


## Frequently asked questions

### Is SAT 비법노트 free?

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

### Is Calculus Formulas free?

Calculus Formulas is free to download, with in-app purchases available.

### Do SAT 비법노트 or Calculus Formulas have ads?

Neither SAT 비법노트 nor Calculus Formulas 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.*