# Backflow Buddy vs Journeyman Plumber Study Guide

The clearest difference is review sentiment: Backflow Buddy at 50% against Journeyman Plumber Study Guide's 0%. Backflow Buddy also leads on rating (3.7 vs 3.0) and in-app purchases (none vs 3). Journeyman Plumber Study Guide's advantage is price (Free vs $1.99). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Journeyman Plumber Study Guide is free to download; Backflow Buddy costs $1.99 up front. Journeyman Plumber Study Guide sells 3 in-app purchases, starting at $2.99 per 7 days. Backflow Buddy asks for nothing beyond the download.

Backflow Buddy holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 50% of Backflow Buddy's written reviews are positive against 0% of Journeyman Plumber Study Guide's.

Backflow Buddy ships an update fortnightly, Journeyman Plumber Study Guide every 6 months. The most recent releases landed on August 27, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Backflow Buddy | Journeyman Plumber Study Guide |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/backflow-buddy/id6475203858/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/journeyman-plumber-study-guide/id6479639351/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#192** | — |
| Size | 258 MB | 35 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Greg Phillips](https://appshunter.io/developer/1723623593) | [Jignasha Joshi](https://appshunter.io/developer/1699384056) |

## What reviewers say

### Backflow Buddy

[App page](https://appshunter.io/ios/app/backflow-buddy/id6475203858)

**Currently charting:** #192 Top Paid · Education (US App Store)

This app simulates backflow prevention devices and their testing procedures. It offers customizable water pressure simulations and quizzes to prepare users for certification exams.

**Highlights:** RPZ and Test Gauge simulation, Double Check and Test Gauge simulation, Customizable internal water pressure, Differential pressure gauge simulation, Quiz preparation with multiple lengths, Randomized industry-expert questions, Comprehensive quiz results

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

**In-app purchases:** none


### Journeyman Plumber Study Guide

[App page](https://appshunter.io/ios/app/journeyman-plumber-study-guide/id6479639351)

Prepare for your Journeyman Plumber Exam with this comprehensive study guide. It offers randomized mock tests, an extensive question bank covering key plumbing topics, and progress tracking to identify areas for improvement. Bookmark questions and review weak areas to ensure success on your exam.

**Highlights:** Randomized mock tests, Extensive question bank, Progress tracking, Bookmark weak questions, Review previous tests, Appearance settings

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access - 7 Days | $2.99 | per 7 days |
| Premium Access - 30 Days | $7.99 | per month |
| Remove Ads | $9.99 | one-time |


## Frequently asked questions

### Is Backflow Buddy free?

Backflow Buddy costs $1.99, with no in-app purchases.

### Is Journeyman Plumber Study Guide free?

Journeyman Plumber Study Guide is free to download, with in-app purchases available.

### Which has better reviews, Backflow Buddy or Journeyman Plumber Study Guide?

Backflow Buddy is rated higher. Backflow Buddy averages 3.7 out of 5 from 3 ratings, while Journeyman Plumber Study Guide averages 3.0 from 3 ratings.

### Do Backflow Buddy or Journeyman Plumber Study Guide have ads?

Both Backflow Buddy and Journeyman Plumber Study Guide show ads.

### Which is updated more often, Backflow Buddy or Journeyman Plumber Study Guide?

Backflow Buddy ships an update fortnightly, and Journeyman Plumber Study Guide every 6 months. Most recently, Backflow Buddy was updated on August 27, 2026 and Journeyman Plumber Study Guide on September 8, 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.*