# TT Pre vs OLGC

The clearest difference is rating: OLGC at 5.0 against TT Pre's 3.3. TT Pre's advantage is ratings volume (12 vs 1) and device support (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OLGC holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: TT Pre has 12 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | TT Pre | OLGC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (12 ratings)](https://appshunter.io/ios/app/tt-pre-calculus/id1516358298/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/olgc/id6800994311/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | Free |
| Size | 88 MB | 50 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Teaching Textbooks, Inc.](https://appshunter.io/developer/1516345361) | [Wojo Studios, LLC](https://appshunter.io/developer/6800994313) |

## 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


### OLGC

[App page](https://appshunter.io/ios/app/olgc/id6800994311)

This app connects parents, students, and teachers to a Catholic homeschool community. It provides access to grades, assignments, messages, and announcements, all within a secure, ad-free environment. Users can manage coursework, track progress, and communicate with others directly through the platform.

**Highlights:** View courses and grades, Submit assignments, Direct messaging, Push notifications, Class discussions, Calendar view

**In-app purchases:** none


## Frequently asked questions

### Is TT Pre free?

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

### Is OLGC free?

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

### Which has better reviews, TT Pre or OLGC?

OLGC is rated higher. TT Pre averages 3.3 out of 5 from 12 ratings, while OLGC averages 5.0 from 1 ratings.

### Do TT Pre or OLGC have ads?

Neither TT Pre nor OLGC 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.*