# Trigonometry for Beginners vs Stacked Studying

The clearest difference is review sentiment: Stacked Studying at 100% against Trigonometry for Beginners's 0%. Stacked Studying also leads on in-app purchases (none vs 1) and ads (none vs shown). Trigonometry for Beginners's advantage is ratings volume (10 vs 2). On price, device support and iOS requirement there is nothing between them.

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

Stacked Studying holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Trigonometry for Beginners has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Trigonometry for Beginners's written reviews are positive against 100% of Stacked Studying's.

Trigonometry for Beginners ships an update every 5 months, Stacked Studying every 2 days. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Trigonometry for Beginners | Stacked Studying |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (10 ratings)](https://appshunter.io/ios/app/trigonometry-for-beginners/id6741252065/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stacked-studying/id6777459781/reviews)** |
| Number of ratings | **10** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 18 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aswian Editri Sutriandi](https://appshunter.io/developer/1791663083) | [Josh Britton](https://appshunter.io/developer/6777459783) |

## What reviewers say

### Trigonometry for Beginners

[App page](https://appshunter.io/ios/app/trigonometry-for-beginners/id6741252065)

Master trigonometry with interactive lessons and exercises designed for beginners. This app offers step-by-step explanations, fun challenges, and instant feedback to build your confidence from basic angles to word problems.

**Highlights:** Tailored for beginners, Interactive step-by-step lessons, Fun and challenging exercises, Instant feedback on answers, Progressive difficulty levels, Covers angles, right triangles, ratios, and word problems

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | 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 Trigonometry for Beginners free?

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

### Is Stacked Studying free?

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

### Which has better reviews, Trigonometry for Beginners or Stacked Studying?

Stacked Studying is rated higher. Trigonometry for Beginners averages 4.7 out of 5 from 10 ratings, while Stacked Studying averages 5.0 from 2 ratings.

### Do Trigonometry for Beginners or Stacked Studying have ads?

Trigonometry for Beginners shows ads; Stacked Studying does not.

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

Trigonometry for Beginners ships an update every 5 months, and Stacked Studying every 2 days. Most recently, Trigonometry for Beginners was updated on October 9, 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.*