# Water Flow Calculators vs IFSTA Essentials 7

The clearest difference is in-app purchases: Water Flow Calculators at none against IFSTA Essentials 7's 4. Water Flow Calculators also leads on review sentiment (60% vs 30%) and iOS requirement (9.1 vs 13.0). IFSTA Essentials 7's advantage is ratings volume (1.8K vs 5). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. IFSTA Essentials 7 sells 4 one-off in-app purchases. Water Flow Calculators asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Water Flow Calculators against 4.6 for IFSTA Essentials 7. That said, the two scores are not equally well evidenced: IFSTA Essentials 7 has 1.8K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 60% of Water Flow Calculators's written reviews are positive against 30% of IFSTA Essentials 7's.

Water Flow Calculators ships an update every 2 months, IFSTA Essentials 7 monthly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Water Flow Calculators | IFSTA Essentials 7 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (5 ratings)](https://appshunter.io/ios/app/water-flow-calculators/id1096155801/reviews) | **[4.6 (1.8K ratings)](https://appshunter.io/ios/app/ifsta-essentials-7/id1441449622/reviews)** |
| Number of ratings | 5 | **1.8K** |
| Positive reviews | **60.0% of reviews** | 30.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 41 MB | 159 MB |
| Requires iOS | **9.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Waterous](https://appshunter.io/developer/1096155800) | [IFSTA](https://appshunter.io/developer/495289396) |

## What reviewers say

### Water Flow Calculators

[App page](https://appshunter.io/ios/app/water-flow-calculators/id1096155801)

This educational app provides calculations for water flow using friction loss, smooth nozzle, NFA, and Iowa formulas. It's designed for professionals and students needing quick and accurate fluid dynamics computations.

**Highlights:** Friction loss calculations, Smooth nozzle calculations, NFA formula support, Iowa formula support, Fluid dynamics computations

**Features:** macOS Compatibility

**In-app purchases:** none


### IFSTA Essentials 7

[App page](https://appshunter.io/ios/app/ifsta-essentials-7/id1441449622)

This app provides comprehensive study materials for firefighter training, including videos, flashcards, and exam preparation. It covers essential firefighting knowledge and skills, meeting NFPA standards. Access free introductory content and unlock full features with in-app purchases.

**Highlights:** Skills Videos, Tool Identification, Flashcards, Exam Prep, Interactive Course, Audiobook

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Video Downloads | $1.99 | one-time |
| Unlock all Exam Prep Chapters | $19.99 | one-time |
| Unlock All Course Chapters | $24.99 | one-time |
| Unlock all Audiobook Chapters | $34.99 | one-time |

**What reviewers like**

- 🚀 Great resource
- 👍 Helpful study tool
- 🚀 Interactive app
- 🚀 Passed the fire academy

**What reviewers complain about**

- 🐛 Reset purchases, cannot restore
- 🐛 Stole my Money
- 🐛 Audiobook won't play
- 🐛 Courses Feature messed up by last update
- 🐛 Audio books don't load

**Reported bugs**

- Purchase didn't go through
- Courses don't work
- Audiobook doesn't work
- Can't log in after device change
- Exam prep not working

**Requested features**

- Sign up to access content on multiple devices
- Sync exam progress and study decks across devices
- Flash cards with questions and answers
- Ability to sync purchases between devices
- Ability to use on MacBook


## Frequently asked questions

### Is Water Flow Calculators free?

Water Flow Calculators is free to download, with no in-app purchases.

### Is IFSTA Essentials 7 free?

IFSTA Essentials 7 is free to download, with in-app purchases available.

### Which has better reviews, Water Flow Calculators or IFSTA Essentials 7?

IFSTA Essentials 7 is rated higher. Water Flow Calculators averages 4.6 out of 5 from 5 ratings, while IFSTA Essentials 7 averages 4.6 from 1.8K ratings.

### Do Water Flow Calculators or IFSTA Essentials 7 have ads?

Neither Water Flow Calculators nor IFSTA Essentials 7 shows ads.

### Which is updated more often, Water Flow Calculators or IFSTA Essentials 7?

Water Flow Calculators ships an update every 2 months, and IFSTA Essentials 7 monthly. Most recently, Water Flow Calculators was updated on October 24, 2026 and IFSTA Essentials 7 on October 29, 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.*