# CITGO Refinery Worx vs Max Dose

The clearest difference is review sentiment: CITGO Refinery Worx at 50% against Max Dose's 0%. CITGO Refinery Worx also leads on rating (3.8 vs 1.0) and ratings volume (4 vs 1). Max Dose's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CITGO Refinery Worx holds the better App Store score, 3.8 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 50% of CITGO Refinery Worx's written reviews are positive against 0% of Max Dose's.

CITGO Refinery Worx ships an update every 2 months, Max Dose every 3 weeks. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | CITGO Refinery Worx | Max Dose |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/citgo-refinery-worx/id1472601996/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/max-dose/id6464201397/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 126 MB | 67 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CITGO Petroleum Corp.](https://appshunter.io/developer/407832513) | [Ahmed Hassan](https://appshunter.io/developer/1705631869) |

## What reviewers say

### CITGO Refinery Worx

[App page](https://appshunter.io/ios/app/citgo-refinery-worx/id1472601996)

Explore the process of turning crude oil into everyday products through an augmented reality tour. "Build" a virtual refinery and discover how different products are made from the same raw materials. This app is designed for educational purposes and is enjoyable for all ages.

**Highlights:** Augmented reality refinery tour, Animations of refining equipment, Explanations of product creation, Discover building blocks of everyday products, Educational and fun for all ages

**In-app purchases:** none


### Max Dose

[App page](https://appshunter.io/ios/app/max-dose/id6464201397)

Interactive live and recorded courses designed for health sciences students. This platform aims to simplify complex topics and has a track record of helping students achieve academic success. Join to begin your educational journey.

**Highlights:** Live interactive courses, Recorded course content, Simplified learning for health sciences, Student success focus, Interactive learning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CITGO Refinery Worx free?

CITGO Refinery Worx is free to download, with no in-app purchases.

### Is Max Dose free?

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

### Which has better reviews, CITGO Refinery Worx or Max Dose?

CITGO Refinery Worx is rated higher. CITGO Refinery Worx averages 3.8 out of 5 from 4 ratings, while Max Dose averages 1.0 from 1 ratings.

### Do CITGO Refinery Worx or Max Dose have ads?

Neither CITGO Refinery Worx nor Max Dose shows ads.

### Which is updated more often, CITGO Refinery Worx or Max Dose?

CITGO Refinery Worx ships an update every 2 months, and Max Dose every 3 weeks. Most recently, CITGO Refinery Worx was updated on October 21, 2026 and Max Dose on October 16, 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.*