# ChemiCalc vs Math Prep for GRE

The clearest difference is price: Math Prep for GRE at Free against ChemiCalc's $0.99. Math Prep for GRE also leads on update cadence (every 13 months vs every 38 months). ChemiCalc's advantage is in-app purchases (none vs 1) and ads (none vs shown). On review sentiment, ratings volume, device support and iOS requirement there is nothing between them.

Math Prep for GRE is free to download; ChemiCalc costs $0.99 up front. Math Prep for GRE sells 1 one-off in-app purchase. ChemiCalc asks for nothing beyond the download.

ChemiCalc holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

ChemiCalc ships an update every 38 months, Math Prep for GRE every 13 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | ChemiCalc | Math Prep for GRE |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chemicalc/id819641904/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/math-prep-for-gre-quant-tests/id957773378/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 13 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 4 MB | 11 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rhodium Inc.](https://appshunter.io/developer/819641907) | [Jakir Hossain](https://appshunter.io/developer/939662527) |

## What reviewers say

### ChemiCalc

[App page](https://appshunter.io/ios/app/chemicalc/id819641904)

This app simplifies unit conversions for chemistry and physics, offering simultaneous views of converted values for energy, wavelength, and frequency. It includes essential formulas and fundamental constants for quantum mechanics, making it a valuable tool for students and educators.

**Highlights:** Unit conversion for chemistry and physics, Simultaneous value display, Energy, wavelength, and frequency conversion, Quantum mechanics formulas, Fundamental constants included

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Prep for GRE

[App page](https://appshunter.io/ios/app/math-prep-for-gre-quant-tests/id957773378)

Master essential math formulas and equations for the GRE quantitative reasoning section. This guide covers elementary concepts, provides examples, and offers a comprehensive cheat sheet to boost your score.

**Highlights:** Essential GRE math formulas, Elementary mathematical concepts, Problem-solving examples, GRE Math Formulas Cheat Sheet, Probability and Permutation guides, Combination guide

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Preparation For GRE PRO | $4.99 | one-time |


## Frequently asked questions

### Is ChemiCalc free?

ChemiCalc costs $0.99, with no in-app purchases.

### Is Math Prep for GRE free?

Math Prep for GRE is free to download, with in-app purchases available.

### Which has better reviews, ChemiCalc or Math Prep for GRE?

ChemiCalc is rated higher. ChemiCalc averages 5.0 out of 5 from 2 ratings, while Math Prep for GRE averages 4.7 from 3 ratings.

### Do ChemiCalc or Math Prep for GRE have ads?

Math Prep for GRE shows ads; ChemiCalc does not.

### Which is updated more often, ChemiCalc or Math Prep for GRE?

ChemiCalc ships an update every 38 months, and Math Prep for GRE every 13 months. Most recently, ChemiCalc was updated on November 1, 2026 and Math Prep for GRE on November 1, 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.*