# Pre vs Factor Tutor by ChatStick

The clearest difference is device support: Pre at 3 against Factor Tutor by ChatStick's —. Pre also leads on iOS requirement (13.0 vs 26.0). On price and in-app purchases there is nothing between them.

Both are free to download. Pre sells 1 in-app purchase, starting at $9.99 per month and Factor Tutor by ChatStick sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Pre | Factor Tutor by ChatStick |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (357 ratings)](https://appshunter.io/ios/app/pre-algebra/id459734695/reviews)** | — |
| Number of ratings | **357** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 6 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 12 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [YourTeacher.com](https://appshunter.io/developer/340925628) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Pre

[App page](https://appshunter.io/ios/app/pre-algebra/id459734695)

Access a comprehensive Pre-Algebra curriculum with video lessons, guided practice, and assessments. Track your learning progress and reinforce knowledge with chapter reviews and a final exam. A free trial is available.

**Highlights:** Video instruction, Guided practice, Tests and quizzes, Worksheets and notes, Progress tracking, Chapter reviews, Final exam

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get full access to Pre-Algebra | $9.99 | per month |

**What reviewers like**

- 👍 Easy to learn from
- 👍 Short videos make learning easy
- 👍 Simple and good layout
- 👍 Outstanding app
- 👍 Helps significantly with pre-algebra

**What reviewers complain about**

- 🐛 App freezes and needs reinstallation
- 🐛 Opening app requires charger plugged in
- 🐛 Multiple choice answers don't show up
- 🐛 Doesn't explain commutative and associative properties well
- 🐛 Describing alternative PEMDAS methods as wrong is not ideal

**Reported bugs**

- App freezes
- Opening app without charger plugged in displays blank page
- Multiple choice answers don't show up on screen
- Daughter's progress and grades disappeared
- App is blank and not working

**Requested features**

- Algebra 2 content
- Better explanation of commutative and associative properties
- Side-by-side comparison of properties
- Allow writing on the screen
- More fraction problems


### Factor Tutor by ChatStick

[App page](https://appshunter.io/ios/app/factor-tutor-by-chatstick/id6760650663)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features + Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Pre free?

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

### Is Factor Tutor by ChatStick free?

Factor Tutor by ChatStick is free to download, with in-app purchases available.

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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.*