# Jumpmaster PRO Study Guide vs Twenty Fore Golf Members Only

The clearest difference is price: Twenty Fore Golf Members Only at Free against Jumpmaster PRO Study Guide's $4.99. Twenty Fore Golf Members Only also leads on in-app purchases (none vs 1). Jumpmaster PRO Study Guide's advantage is chart position (#29 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Twenty Fore Golf Members Only is free to download; Jumpmaster PRO Study Guide costs $4.99 up front. Jumpmaster PRO Study Guide sells 1 one-off in-app purchase. Twenty Fore Golf Members Only asks for nothing beyond the download.

## The numbers

| Metric | Jumpmaster PRO Study Guide | Twenty Fore Golf Members Only |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.7 (287 ratings)](https://appshunter.io/ios/app/jumpmaster-pro-study-guide/id476837843/reviews)** | — |
| Number of ratings | **287** | — |
| Positive reviews | 81.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Paid | — |
| Best chart rank | **#29** | — |
| Size | 678 MB | 15 MB |
| Requires iOS | 13.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ForceReadiness.com](https://appshunter.io/developer/412513833) | [Jeremy Lee](https://appshunter.io/developer/1797704270) |

## What reviewers say

### Jumpmaster PRO Study Guide

[App page](https://appshunter.io/ios/app/jumpmaster-pro-study-guide/id476837843)

**Currently charting:** #29 Top Paid · Education (US App Store)

Prepare for Jumpmaster School with over 1500 questions and flashcards covering parachute components, jumpmaster duties, safety procedures, and aircraft operations. Track your study and test progress with this advanced training aid.

**Highlights:** 1500+ Questions & Flashcards, Covers TC 3-21.220 W/C1, Parachute Component Nomenclature, Jumpmaster Duties & Responsibilities, Safety Procedures for Rigging, Study and Test Progress Tracking, Switch to TC 3-21.220 Easily

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JM PRO+ Pack | $1.99 | one-time |

**What reviewers like**

- 👍 Very helpful study tool
- 🚀 Great for on-the-go studying
- 💡 Makes memorization easier
- ✅ Helps pass JM course
- 📚 Good for nomenclature and deficiencies

**What reviewers complain about**

- ⚠️ Pre-jump section outdated
- 🔄 Needs frequent updates
- ❌ Some nomenclature incorrect/missing
- 🖼️ Fuzzy/pixelated images
- 📍 Differences between school locations (Bragg vs. Benning)

**Reported bugs**

- Nomenclature given in plural instead of singular
- Prejump audio not up to date with current JM course
- Minor errors in T-11 line by line section of prejump
- T-11 deficiencies do not match current JM study guide
- Some parts are outdated and some nomenclature missing

**Requested features**

- Update Prejump, nomenclature, and deficiencies for the MAY 2025 book
- Include new Mole 4000
- Add single pin reserve for testing
- Update pre-jump with 4th point of performance regarding 1-3 arm length slips
- Option to repeat audio classes


### Twenty Fore Golf Members Only

[App page](https://appshunter.io/ios/app/twenty-fore-golf-members-only/id6742312067)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Jumpmaster PRO Study Guide free?

Jumpmaster PRO Study Guide costs $4.99, and also offers in-app purchases.

### Is Twenty Fore Golf Members Only free?

Twenty Fore Golf Members Only is free to download, with no in-app purchases.

### Do Jumpmaster PRO Study Guide or Twenty Fore Golf Members Only have ads?

Neither Jumpmaster PRO Study Guide nor Twenty Fore Golf Members Only 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.*