# Beautiful Trigonometry vs Stacked Studying

The clearest difference is in-app purchases: Stacked Studying at none against Beautiful Trigonometry's 1. Stacked Studying also leads on update cadence (every 2 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Beautiful Trigonometry sells 1 one-off in-app purchase. Stacked Studying asks for nothing beyond the download.

Beautiful Trigonometry ships an update every 3 months, Stacked Studying every 2 days. The most recent releases landed on September 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Beautiful Trigonometry | Stacked Studying |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stacked-studying/id6777459781/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 8 MB | 18 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Tomasz Rygula](https://appshunter.io/developer/879228654) | [Josh Britton](https://appshunter.io/developer/6777459783) |

## What reviewers say

### Beautiful Trigonometry

[App page](https://appshunter.io/ios/app/beautiful-trigonometry/id6746460113)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Trigonometry Access | $1.99 | one-time |


### Stacked Studying

[App page](https://appshunter.io/ios/app/stacked-studying/id6777459781)

This app employs the Pomodoro technique to foster effective study habits and enhance knowledge retention. It integrates study timers and automatic break timers, allowing for customizable durations to suit individual needs. The app offers a free amino acid quiz and over 1500 practice MCAT questions.

**Highlights:** Pomodoro study timer, Automatic break timers, Customizable timer settings, Amino acid quiz, 1500+ MCAT practice questions

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Beautiful Trigonometry free?

Beautiful Trigonometry is free to download, with in-app purchases available.

### Is Stacked Studying free?

Stacked Studying is free to download, with no in-app purchases.

### Do Beautiful Trigonometry or Stacked Studying have ads?

Neither Beautiful Trigonometry nor Stacked Studying shows ads.

### Which is updated more often, Beautiful Trigonometry or Stacked Studying?

Beautiful Trigonometry ships an update every 3 months, and Stacked Studying every 2 days. Most recently, Beautiful Trigonometry was updated on September 18, 2026 and Stacked Studying on October 4, 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.*