# Hep B vs Direct Proportion

Hep B and Direct Proportion are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Hep B | Direct Proportion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hep-b-ware/id1478014853/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | — |
| Monetization | Free | — |
| Size | 332 MB | 50 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Drexel University](https://appshunter.io/developer/410950254) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Hep B

[App page](https://appshunter.io/ios/app/hep-b-ware/id1478014853)

Explore the world of infectious diseases through engaging gameplay. This educational game allows players to embody a virus, navigate the bloodstream, and infect liver cells while learning key scientific concepts through interactive levels and quizzes.

**Highlights:** Simulate hepatitis B virus infection, Navigate bloodstream to infect liver cells, 7 educational game levels, Interactive pop-quizzes, Learn scientific terms, Understand viral life cycle

**In-app purchases:** none


### Direct Proportion

[App page](https://appshunter.io/ios/app/direct-proportion/id6736588837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hep B free?

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

### Is Direct Proportion free?

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

### Do Hep B or Direct Proportion have ads?

Neither Hep B nor Direct Proportion 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.*