# IFSTA Driver/Operator 4 vs DO Calcs Buddy

The clearest difference is review sentiment: DO Calcs Buddy at 100% against IFSTA Driver/Operator 4's 11%. DO Calcs Buddy also leads on rating (4.8 vs 2.0) and in-app purchases (none vs 2). IFSTA Driver/Operator 4's advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. IFSTA Driver/Operator 4 sells 2 one-off in-app purchases. DO Calcs Buddy asks for nothing beyond the download.

DO Calcs Buddy holds the better App Store score, 4.8 against 2.0. Both are backed by a comparable volume of ratings — 11 and 4 respectively. Written reviews point the same way: 11% of IFSTA Driver/Operator 4's written reviews are positive against 100% of DO Calcs Buddy's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | IFSTA Driver/Operator 4 | DO Calcs Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (11 ratings)](https://appshunter.io/ios/app/ifsta-driveroperator-4/id6748807805/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/do-calcs-buddy/id6749918102/reviews)** |
| Number of ratings | **11** | 4 |
| Positive reviews | 11.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 107 MB | 71 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IFSTA](https://appshunter.io/developer/495289396) | [Max McCoy](https://appshunter.io/developer/1832824815) |

## What reviewers say

### IFSTA Driver/Operator 4

[App page](https://appshunter.io/ios/app/ifsta-driveroperator-4/id6748807805)

This app provides training materials for fire service driver/operators, covering pumping and aerial apparatus. It includes exam preparation with over 700 questions, an audiobook of the entire manual, and free flashcards for key terms. Access to Chapter 1 is free for all features.

**Highlights:** Exam preparation with 700+ questions, Full audiobook narration, Offline access for audiobook, Flashcards for key terms, Progress tracking for exams, Free access to Chapter 1 content

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IFSTA Driver/Operator 4 | $14.99 | one-time |
| IFSTA Driver/Operator 4 | $29.99 | one-time |


### DO Calcs Buddy

[App page](https://appshunter.io/ios/app/do-calcs-buddy/id6749918102)

This app helps firefighters and engineers perform hoseline calculations for training and certification. It offers customizable settings for specific departments and includes interactive study modes for various pump operator topics. The tool is designed for offline use and provides quick reference field topics.

**Highlights:** Hoseline Calculator with custom segments, Friction loss, PDP, GPM, Nozzle Reaction, Customizable hose and nozzle settings, Interactive study mode with randomized questions, Offline functionality, Quick reference field topics

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

**In-app purchases:** none


## Frequently asked questions

### Is IFSTA Driver/Operator 4 free?

IFSTA Driver/Operator 4 is free to download, with in-app purchases available.

### Is DO Calcs Buddy free?

DO Calcs Buddy is free to download, with no in-app purchases.

### Which has better reviews, IFSTA Driver/Operator 4 or DO Calcs Buddy?

DO Calcs Buddy is rated higher. IFSTA Driver/Operator 4 averages 2.0 out of 5 from 11 ratings, while DO Calcs Buddy averages 4.8 from 4 ratings.

### Do IFSTA Driver/Operator 4 or DO Calcs Buddy have ads?

Neither IFSTA Driver/Operator 4 nor DO Calcs Buddy shows ads.

### Which is updated more often, IFSTA Driver/Operator 4 or DO Calcs Buddy?

IFSTA Driver/Operator 4 ships an update monthly, and DO Calcs Buddy monthly. Most recently, IFSTA Driver/Operator 4 was updated on October 8, 2026 and DO Calcs Buddy on October 9, 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.*