# TT Pre vs Suflek

The clearest difference is update cadence: Suflek at every 11 days against TT Pre's every 2 months. Suflek also leads on iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

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

TT Pre ships an update every 2 months, Suflek every 11 days. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | TT Pre | Suflek |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (9 ratings)](https://appshunter.io/ios/app/tt-pre-calculus/id1516358298/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 88 MB | 80 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Teaching Textbooks, Inc.](https://appshunter.io/developer/1516345361) | [Tarek Hussain](https://appshunter.io/developer/1615365778) |

## 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


### Suflek

[App page](https://appshunter.io/ios/app/suflek/id1615365776)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TT Pre free?

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

### Is Suflek free?

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

### Do TT Pre or Suflek have ads?

Neither TT Pre nor Suflek shows ads.

### Which is updated more often, TT Pre or Suflek?

TT Pre ships an update every 2 months, and Suflek every 11 days. Most recently, TT Pre was updated on September 11, 2026 and Suflek on September 15, 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.*