# TT Pre vs Trigonometry for Beginners

The clearest difference is rating: Trigonometry for Beginners at 4.7 against TT Pre's 3.6. TT Pre's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and ratings volume there is nothing between them.

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

Trigonometry for Beginners holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 9 and 10 respectively. Written reviews complicate that: 29% of TT Pre's written reviews are positive against 0% of Trigonometry for Beginners's, so the app with the better star average is not the one people write more warmly about.

TT Pre ships an update every 2 months, Trigonometry for Beginners every 5 months. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | TT Pre | Trigonometry for Beginners |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (9 ratings)](https://appshunter.io/ios/app/tt-pre-calculus/id1516358298/reviews) | **[4.7 (10 ratings)](https://appshunter.io/ios/app/trigonometry-for-beginners/id6741252065/reviews)** |
| Number of ratings | 9 | **10** |
| Positive reviews | **28.6% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 88 MB | 12 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Teaching Textbooks, Inc.](https://appshunter.io/developer/1516345361) | [Aswian Editri Sutriandi](https://appshunter.io/developer/1791663083) |

## What reviewers say

### TT Pre

[App page](https://appshunter.io/ios/app/tt-pre-calculus/id1516358298)

This educational app provides comprehensive pre-calculus lessons and practice problems. It features audiovisual lectures, automated grading, and step-by-step explanations to help students learn independently. Parental controls allow progress tracking, and the digitized textbook is searchable.

**Highlights:** 95 audiovisual lectures, Thousands of practice problems, Automated grading and instant feedback, Step-by-step audiovisual explanations, Parental progress tracking, Digitized textbook with search

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is TT Pre free?

TT Pre is free to download, with no in-app purchases.

### Is Trigonometry for Beginners free?

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

### Which has better reviews, TT Pre or Trigonometry for Beginners?

Trigonometry for Beginners is rated higher. TT Pre averages 3.6 out of 5 from 9 ratings, while Trigonometry for Beginners averages 4.7 from 10 ratings.

### Do TT Pre or Trigonometry for Beginners have ads?

Trigonometry for Beginners shows ads; TT Pre does not.

### Which is updated more often, TT Pre or Trigonometry for Beginners?

TT Pre ships an update every 2 months, and Trigonometry for Beginners every 5 months. Most recently, TT Pre was updated on October 8, 2026 and Trigonometry for Beginners on October 9, 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.*