# Preposition Builder Master Pro vs Herman

The clearest difference is price: Preposition Builder Master Pro at Free against Herman's $2.99. Preposition Builder Master Pro also leads on ratings volume (17 vs 1). Herman's advantage is rating (5.0 vs 3.8) and update cadence (every 10 days vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Preposition Builder Master Pro is free to download; Herman costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Herman holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Preposition Builder Master Pro has 17 ratings behind it against 1, so its average is the more settled of the two.

Preposition Builder Master Pro ships an update every 2 months, Herman every 10 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Preposition Builder Master Pro | Herman |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [3.8 (17 ratings)](https://appshunter.io/ios/app/preposition-builder-master-pro/id1236551326/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/herman/id6743255218/reviews)** |
| Number of ratings | **17** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Paid | **Free** |
| Size | 45 MB | 2 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Imanol Fernandez Gorostizaga](https://appshunter.io/developer/313095639) | [H Valeur](https://appshunter.io/developer/621824042) |

## 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


### Herman

[App page](https://appshunter.io/ios/app/herman/id6743255218)

This app offers over 300 unique calculators for finance, math, and everyday problems. It provides a user-friendly interface for quick and accurate calculations, working offline for convenience.

**Highlights:** Over 300 unique calculators, Finance and business calculations, Math and fraction tools, Unit conversions (length, mass, time, volume), Offline functionality, User-friendly design

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

**In-app purchases:** none


## Frequently asked questions

### Is Preposition Builder Master Pro free?

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

### Is Herman free?

Herman costs $2.99, with no in-app purchases.

### Which has better reviews, Preposition Builder Master Pro or Herman?

Herman is rated higher. Preposition Builder Master Pro averages 3.8 out of 5 from 17 ratings, while Herman averages 5.0 from 1 ratings.

### Do Preposition Builder Master Pro or Herman have ads?

Neither Preposition Builder Master Pro nor Herman shows ads.

### Which is updated more often, Preposition Builder Master Pro or Herman?

Preposition Builder Master Pro ships an update every 2 months, and Herman every 10 days. Most recently, Preposition Builder Master Pro was updated on October 9, 2026 and Herman on October 14, 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.*