# Backflow Buddy vs Water Distribution Exam Prep

The clearest difference is price: Water Distribution Exam Prep at Free against Backflow Buddy's $1.99. Water Distribution Exam Prep also leads on rating (5.0 vs 3.7) and ads (none vs shown). Backflow Buddy's advantage is in-app purchases (none vs 9) and chart position (#192 vs unranked). On device support there is nothing between them.

Water Distribution Exam Prep is free to download; Backflow Buddy costs $1.99 up front. Water Distribution Exam Prep sells 9 in-app purchases, starting at $3.99 per 7 days. Backflow Buddy asks for nothing beyond the download.

Water Distribution Exam Prep holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | Backflow Buddy | Water Distribution Exam Prep |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/backflow-buddy/id6475203858/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/water-distribution-exam-prep/id6752021512/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#192** | — |
| Size | 258 MB | 39 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Greg Phillips](https://appshunter.io/developer/1723623593) | [Snap Prep OU](https://appshunter.io/developer/1711932790) |

## 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


### Water Distribution Exam Prep

[App page](https://appshunter.io/ios/app/water-distribution-exam-prep/id6752021512)

Prepare for your water distribution operator certification exam with expert-crafted practice questions and realistic simulations. Track your progress, focus on weak areas, and gain the confidence needed for success in this vital public health role.

**Highlights:** Expertly crafted practice questions, Realistic exam simulations, Detailed explanations for each question, Customizable study plans, Progress tracking and analytics, Interactive learning tools, Regular content updates

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Water Operator Weekly Access | $3.99 | per 7 days |
| Water Operator Monthly Access | $9.99 | per month |
| WaterOp Monthly Full Access | $9.99 | per month |
| WaterOp Quarterly Full Access | $22.99 | per 3 months |
| WaterOp Quarterly Full Access | $22.99 | per 3 months |
| WaterOp Semiannual Full Access | $38.99 | per 6 months |
| WaterOp Semiannual Full Access | $38.99 | per 6 months |
| WaterOp Annual Full Access | $59.99 | per year |
| WaterOp Annual Full Access | $59.99 | per year |


## Frequently asked questions

### Is Backflow Buddy free?

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

### Is Water Distribution Exam Prep free?

Water Distribution Exam Prep is free to download, with in-app purchases available.

### Which has better reviews, Backflow Buddy or Water Distribution Exam Prep?

Water Distribution Exam Prep is rated higher. Backflow Buddy averages 3.7 out of 5 from 3 ratings, while Water Distribution Exam Prep averages 5.0 from 1 ratings.

### Do Backflow Buddy or Water Distribution Exam Prep have ads?

Backflow Buddy shows ads; Water Distribution Exam Prep does not.

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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.*