# ILLUSTRATED MATH vs Environmental Engineering PRO

The clearest difference is update cadence: Environmental Engineering PRO at every 5 months against ILLUSTRATED MATH's every 65 months. Environmental Engineering PRO also leads on device support (3 vs 1) and price ($0.49 vs $1.99). On ads and in-app purchases there is nothing between them.

ILLUSTRATED MATH costs $1.99 and Environmental Engineering PRO $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

ILLUSTRATED MATH ships an update every 65 months, Environmental Engineering PRO every 5 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ILLUSTRATED MATH | Environmental Engineering PRO |
| --- | --- | --- |
| Price | $1.99 | **$0.49** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/illustrated-math-fractions/id1460783890/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 65 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 16 MB | 23 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Red Hong](https://appshunter.io/developer/542314714) | [Manish Kumar](https://appshunter.io/developer/1854995154) |

## What reviewers say

### ILLUSTRATED MATH

[App page](https://appshunter.io/ios/app/illustrated-math-fractions/id1460783890)

This app offers a visual and step-by-step approach to mastering fractions, covering concepts from basic identification to complex operations and word problems. It includes tools for practicing GCF and LCM, and a handwriting board for calculations.

**Highlights:** Visual fraction learning, Step-by-step instructions, Fraction word problems, GCF and LCM practice, Handwriting calculation board, Schoolwork app integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Environmental Engineering PRO

[App page](https://appshunter.io/ios/app/environmental-engineering-pro/id6759217834)

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

**In-app purchases:** none


## Frequently asked questions

### Is ILLUSTRATED MATH free?

ILLUSTRATED MATH costs $1.99, with no in-app purchases.

### Is Environmental Engineering PRO free?

Environmental Engineering PRO costs $0.49, with no in-app purchases.

### Do ILLUSTRATED MATH or Environmental Engineering PRO have ads?

Neither ILLUSTRATED MATH nor Environmental Engineering PRO shows ads.

### Which is updated more often, ILLUSTRATED MATH or Environmental Engineering PRO?

ILLUSTRATED MATH ships an update every 65 months, and Environmental Engineering PRO every 5 months. Most recently, ILLUSTRATED MATH was updated on October 24, 2026 and Environmental Engineering PRO on October 25, 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.*