# IFSTA Driver/Operator 3 vs DO Calcs Buddy

The clearest difference is review sentiment: DO Calcs Buddy at 100% against IFSTA Driver/Operator 3's 38%. DO Calcs Buddy also leads on rating (4.8 vs 2.8) and in-app purchases (none vs 2). IFSTA Driver/Operator 3's advantage is ratings volume (24 vs 4) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. IFSTA Driver/Operator 3 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 2.8. That said, the two scores are not equally well evidenced: IFSTA Driver/Operator 3 has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 38% of IFSTA Driver/Operator 3's written reviews are positive against 100% of DO Calcs Buddy's.

IFSTA Driver/Operator 3 ships an update every 5 months, DO Calcs Buddy monthly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | IFSTA Driver/Operator 3 | DO Calcs Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (24 ratings)](https://appshunter.io/ios/app/ifsta-driveroperator-3/id6444622325/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/do-calcs-buddy/id6749918102/reviews)** |
| Number of ratings | **24** | 4 |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 75 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 3

[App page](https://appshunter.io/ios/app/ifsta-driveroperator-3/id6444622325)

This app supports driver and operator training for pumping and aerial fire apparatus. It offers flashcards for key terms and exam preparation questions. An audiobook version of the manual is also available for purchase.

**Highlights:** Pumping and aerial apparatus training, Flashcards for key terms, Exam preparation with progress tracking, Audiobook with offline access, Covers 20 chapters of the manual

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Exam Prep Chapters | $14.99 | one-time |
| Unlock All Audiobooks | $32.99 | 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 3 free?

IFSTA Driver/Operator 3 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 3 or DO Calcs Buddy?

DO Calcs Buddy is rated higher. IFSTA Driver/Operator 3 averages 2.8 out of 5 from 24 ratings, while DO Calcs Buddy averages 4.8 from 4 ratings.

### Do IFSTA Driver/Operator 3 or DO Calcs Buddy have ads?

Neither IFSTA Driver/Operator 3 nor DO Calcs Buddy shows ads.

### Which is updated more often, IFSTA Driver/Operator 3 or DO Calcs Buddy?

IFSTA Driver/Operator 3 ships an update every 5 months, and DO Calcs Buddy monthly. Most recently, IFSTA Driver/Operator 3 was updated on October 11, 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.*