# Preposition Builder Master Pro vs On Your Marks

The clearest difference is in-app purchases: Preposition Builder Master Pro at none against On Your Marks's 10. Preposition Builder Master Pro also leads on update cadence (every 2 months vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. On Your Marks sells 10 one-off in-app purchases. Preposition Builder Master Pro asks for nothing beyond the download.

Preposition Builder Master Pro ships an update every 2 months, On Your Marks every 12 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Preposition Builder Master Pro | On Your Marks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (19 ratings)](https://appshunter.io/ios/app/preposition-builder-master-pro/id1236551326/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Paid | — |
| Size | 45 MB | 146 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Imanol Fernandez Gorostizaga](https://appshunter.io/developer/313095639) | [Online Learning](https://appshunter.io/developer/1790866777) |

## What reviewers say

### Preposition Builder Master Pro

[App page](https://appshunter.io/ios/app/preposition-builder-master-pro/id1236551326)

Learn English prepositions and grammar by correctly placing words to form sentences and common sayings. This game offers multiple difficulty levels, from beginner to expert, and includes a fun way to master idioms and expressions. Compete with others or practice solo to improve your language skills.

**Highlights:** Sentence building with prepositions, Multiple difficulty levels (Beginner to Expert), Proverbs and Sayings level, Time penalties for errors, Scoring based on speed and accuracy, Online multiplayer mode, Game Center integration

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

**In-app purchases:** none


### On Your Marks

[App page](https://appshunter.io/ios/app/on-your-marks/id6475214378)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AU | $34.99 | one-time |
| Package - AW | $39.99 | one-time |
| Package - BA | $39.99 | one-time |
| Package - AX | $39.99 | one-time |
| Package - AZ | $39.99 | one-time |
| Package - BB | $39.99 | one-time |
| Package - BC | $39.99 | one-time |
| Package - BE | $44.99 | one-time |
| Package - BF | $49.99 | one-time |
| Package - BH | $49.99 | one-time |


## Frequently asked questions

### Is Preposition Builder Master Pro free?

Preposition Builder Master Pro is free to download, with no in-app purchases.

### Is On Your Marks free?

On Your Marks is free to download, with in-app purchases available.

### Do Preposition Builder Master Pro or On Your Marks have ads?

Neither Preposition Builder Master Pro nor On Your Marks shows ads.

### Which is updated more often, Preposition Builder Master Pro or On Your Marks?

Preposition Builder Master Pro ships an update every 2 months, and On Your Marks every 12 months. Most recently, Preposition Builder Master Pro was updated on October 29, 2026 and On Your Marks on October 27, 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.*