# DetAct Calculator vs Fire Alarm Tech Toolkit

The clearest difference is in-app purchases: DetAct Calculator at none against Fire Alarm Tech Toolkit's 3. DetAct Calculator also leads on ads (none vs shown). Fire Alarm Tech Toolkit's advantage is update cadence (every 2 months vs every 9 months) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Fire Alarm Tech Toolkit sells 3 in-app purchases, starting at $4.99 per month. DetAct Calculator asks for nothing beyond the download.

DetAct Calculator ships an update every 9 months, Fire Alarm Tech Toolkit every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DetAct Calculator | Fire Alarm Tech Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fire-alarm-tech-toolkit/id6780276204/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 78 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Flashover Engineering AB](https://appshunter.io/developer/1640994074) | [Travis Foreman](https://appshunter.io/developer/1615676730) |

## What reviewers say

### DetAct Calculator

[App page](https://appshunter.io/ios/app/detact-calculator/id6443817219)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fire Alarm Tech Toolkit

[App page](https://appshunter.io/ios/app/fire-alarm-tech-toolkit/id6780276204)

This app provides fire alarm technicians with essential field tools for calculations, project management, and reporting. It includes features for device tracking, service logging, and professional report generation, streamlining on-site work.

**Highlights:** Fire alarm field calculators, DIP switch and rotary dial addressing, Barcode and QR scanning, Battery load and date code tools, Conduit fill and resistor references, Project, floor, and device records, Service tracking for devices and extinguishers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Solo Pro | $4.99 | per month |
| Team Monthly | $24.99 | per month |
| Company Monthly | $44.99 | per month |


## Frequently asked questions

### Is DetAct Calculator free?

DetAct Calculator is free to download, with no in-app purchases.

### Is Fire Alarm Tech Toolkit free?

Fire Alarm Tech Toolkit is free to download, with in-app purchases available.

### Do DetAct Calculator or Fire Alarm Tech Toolkit have ads?

Fire Alarm Tech Toolkit shows ads; DetAct Calculator does not.

### Which is updated more often, DetAct Calculator or Fire Alarm Tech Toolkit?

DetAct Calculator ships an update every 9 months, and Fire Alarm Tech Toolkit every 2 months. Most recently, DetAct Calculator was updated on November 3, 2026 and Fire Alarm Tech Toolkit on October 31, 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.*