# GRE® Test Prep by Galvanize vs GRE Math by Sherpa Prep

The clearest difference is in-app purchases: GRE® Test Prep by Galvanize at none against GRE Math by Sherpa Prep's 4. GRE® Test Prep by Galvanize also leads on ratings volume (206 vs 61). GRE Math by Sherpa Prep's advantage is update cadence (every 3 weeks vs every 7 months) and review sentiment (98% vs 85%). On price, rating, ads and device support there is nothing between them.

Both are free to download. GRE Math by Sherpa Prep sells 4 one-off in-app purchases. GRE® Test Prep by Galvanize asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for GRE® Test Prep by Galvanize against 4.6 for GRE Math by Sherpa Prep. Both are backed by a comparable volume of ratings — 206 and 61 respectively. Written reviews are what separate them: 85% of GRE® Test Prep by Galvanize's written reviews are positive against 98% of GRE Math by Sherpa Prep's.

GRE® Test Prep by Galvanize ships an update every 7 months, GRE Math by Sherpa Prep every 3 weeks. The most recent releases landed on September 29, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | GRE® Test Prep by Galvanize | GRE Math by Sherpa Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (206 ratings)](https://appshunter.io/ios/app/gre-test-prep-by-galvanize/id1018728564/reviews) | **[4.6 (61 ratings)](https://appshunter.io/ios/app/gre-math-by-sherpa-prep/id1207476947/reviews)** |
| Number of ratings | **206** | 61 |
| Positive reviews | 85.0% of reviews | **97.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 162 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ENTRAYN EDUCATION TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1018728563) | [Sherpa Prep LLC](https://appshunter.io/developer/1207476946) |

## What reviewers say

### GRE® Test Prep by Galvanize

[App page](https://appshunter.io/ios/app/gre-test-prep-by-galvanize/id1018728564)

Prepare for the GRE exam with a comprehensive app offering hundreds of practice questions and detailed explanations. Track your progress, predict your score, and gauge your readiness for the Math and Verbal sections. Study with friends and access exclusive formula cheat sheets.

**Highlights:** Hundreds of GRE-style practice questions, Detailed explanations for each question, GRE score predictor, Exam readiness indicator, Timed practice tests, Study with friends feature, Quant formula cheat sheet

**In-app purchases:** none

**What reviewers like**

- 📚 Comprehensive GRE practice questions covering all sections
- 💡 Detailed explanations for each answer
- ⏱️ Timed questions to practice pacing
- 🎯 Goal-setting feature with progress tracking
- 📱 Convenient on-the-go study tool

**What reviewers complain about**

- 🐛 App crashes frequently on certain iOS versions
- 🔐 Excessive data collection requirements
- 📵 Login and account creation issues
- ⚠️ Blank display on iPad
- 🔄 Questions fail to load after extended use

**Reported bugs**

- App crashes within 1 second on iOS 15
- Phone verification field not working
- Sign-in functionality broken
- Questions don't load after multiple practice sessions
- Spinning wheel animation freezes when loading questions

**Requested features**

- Simplified onboarding process without excessive data requirements
- Option to pay for app instead of writing reviews
- Progress reset functionality
- Improved iPad compatibility
- Better offline functionality


### GRE Math by Sherpa Prep

[App page](https://appshunter.io/ios/app/gre-math-by-sherpa-prep/id1207476947)

Master GRE math with comprehensive lessons, video solutions, and practice questions. This app breaks down complex topics into easy-to-understand language and offers time-saving tricks for all skill levels.

**Highlights:** 350+ GRE math lessons, Hundreds of tricks and shortcuts, 1,000+ practice questions, Animated video solutions, Diagnostic quizzes, Detailed analytics and feedback

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Number Properties and Algebra | $9.99 | one-time |
| Word Problems | $9.99 | one-time |
| Geometry | $9.99 | one-time |
| Statistics and Data Interpr... | $9.99 | one-time |

**What reviewers like**

- 👍 Great value for money
- 💡 Clear and concise video solutions
- 👍 Supportive and dedicated team
- 🚀 Efficient test preparation
- 💡 Unique problem-solving approaches

**What reviewers complain about**

- 🐛 Crashing on iOS 13
- 🐛 Freezing during tests
- 🐛 Occasionally buggy

**Reported bugs**

- App crashing on iOS 13
- Freezing when doing tests
- Occasional bugs

**Requested features**

- More in-app purchases for additional info


## Frequently asked questions

### Is GRE® Test Prep by Galvanize free?

GRE® Test Prep by Galvanize is free to download, with no in-app purchases.

### Is GRE Math by Sherpa Prep free?

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

### Which has better reviews, GRE® Test Prep by Galvanize or GRE Math by Sherpa Prep?

GRE Math by Sherpa Prep is rated higher. GRE® Test Prep by Galvanize averages 4.5 out of 5 from 206 ratings, while GRE Math by Sherpa Prep averages 4.6 from 61 ratings.

### Do GRE® Test Prep by Galvanize or GRE Math by Sherpa Prep have ads?

Neither GRE® Test Prep by Galvanize nor GRE Math by Sherpa Prep shows ads.

### Which is updated more often, GRE® Test Prep by Galvanize or GRE Math by Sherpa Prep?

GRE® Test Prep by Galvanize ships an update every 7 months, and GRE Math by Sherpa Prep every 3 weeks. Most recently, GRE® Test Prep by Galvanize was updated on September 29, 2026 and GRE Math by Sherpa Prep on October 17, 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.*