# Periodic Table vs IFSTA Instructor 9

The clearest difference is price: IFSTA Instructor 9 at Free against Periodic Table's $1.99. IFSTA Instructor 9 also leads on update cadence (every 10 months vs every 28 months) and iOS requirement (13.0 vs 16.0). Periodic Table's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

IFSTA Instructor 9 is free to download; Periodic Table costs $1.99 up front. IFSTA Instructor 9 sells 2 one-off in-app purchases. Periodic Table asks for nothing beyond the download.

Periodic Table ships an update every 28 months, IFSTA Instructor 9 every 10 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Periodic Table | IFSTA Instructor 9 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[3.2 (17 ratings)](https://appshunter.io/ios/app/ifsta-instructor-9/id1604765850/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 10 months** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 124 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Lucioni Charalla](https://appshunter.io/developer/1198674844) | [IFSTA](https://appshunter.io/developer/495289396) |

## What reviewers say

### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-elements/id1482354618)

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

**In-app purchases:** none


### IFSTA Instructor 9

[App page](https://appshunter.io/ios/app/ifsta-instructor-9/id1604765850)

This app provides instructor training for fire and emergency services professionals, aligning with NFPA 1041 standards. It includes free flashcards and access to the first chapter of the audiobook and exam prep, with full access available via in-app purchases.

**Highlights:** NFPA 1041 compliant instructor training, Flashcards for key terms and definitions, Exam preparation with 565 validated questions, Progress tracking for study sessions, Full audiobook narration with offline access, Chapter 1 free access for all features

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Exam Prep | $14.99 | one-time |
| Audiobook | $30.99 | one-time |


## Frequently asked questions

### Is Periodic Table free?

Periodic Table costs $1.99, with no in-app purchases.

### Is IFSTA Instructor 9 free?

IFSTA Instructor 9 is free to download, with in-app purchases available.

### Do Periodic Table or IFSTA Instructor 9 have ads?

Neither Periodic Table nor IFSTA Instructor 9 shows ads.

### Which is updated more often, Periodic Table or IFSTA Instructor 9?

Periodic Table ships an update every 28 months, and IFSTA Instructor 9 every 10 months. Most recently, Periodic Table was updated on October 6, 2026 and IFSTA Instructor 9 on October 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.*