# Flex Hazards vs LPC Sprinkler Rules

The clearest difference is iOS requirement: Flex Hazards at 12.0 against LPC Sprinkler Rules's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Flex Hazards ships an update every 6 months, LPC Sprinkler Rules every 5 months. The most recent releases landed on September 14, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Flex Hazards | LPC Sprinkler Rules |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Size | 25 MB | 36 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CGA Technology](https://appshunter.io/developer/1237111538) | [The Fire Protection Association](https://appshunter.io/developer/1572798137) |

## What reviewers say

### Flex Hazards

[App page](https://appshunter.io/ios/app/flex-hazards/id1474786808)

**Features:** macOS Compatibility

**In-app purchases:** none


### LPC Sprinkler Rules

[App page](https://appshunter.io/ios/app/lpc-sprinkler-rules/id1572798135)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flex Hazards free?

Flex Hazards is free to download, with no in-app purchases.

### Is LPC Sprinkler Rules free?

LPC Sprinkler Rules is free to download, with no in-app purchases.

### Do Flex Hazards or LPC Sprinkler Rules have ads?

Neither Flex Hazards nor LPC Sprinkler Rules shows ads.

### Which is updated more often, Flex Hazards or LPC Sprinkler Rules?

Flex Hazards ships an update every 6 months, and LPC Sprinkler Rules every 5 months. Most recently, Flex Hazards was updated on September 14, 2026 and LPC Sprinkler Rules on June 1, 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.*