# WAlert vs Lav Sempre

The clearest difference is iOS requirement: WAlert at 9.0 against Lav Sempre's 15.1. 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.

WAlert ships an update every 3 weeks, Lav Sempre fortnightly. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | WAlert | Lav Sempre |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/walert/id1061590894/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 26 MB | 45 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danh Le Ngoc](https://appshunter.io/developer/1061590893) | [MaxPan](https://appshunter.io/developer/1807374075) |

## What reviewers say

### WAlert

[App page](https://appshunter.io/ios/app/walert/id1061590894)

This application works with a 3D spatial security sensor for homes, detecting intrusions without traditional door or window contacts. It offers remote control of security features and provides instant alerts.

**Highlights:** 3D spatial security sensor, Intrusion detection up to 2000 SF, No wired/wireless contacts needed, Remote control of features, Instant alert notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### Lav Sempre

[App page](https://appshunter.io/ios/app/lav-sempre/id6747667845)

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

**In-app purchases:** none


## Frequently asked questions

### Is WAlert free?

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

### Is Lav Sempre free?

Lav Sempre is free to download, with no in-app purchases.

### Do WAlert or Lav Sempre have ads?

Neither WAlert nor Lav Sempre shows ads.

### Which is updated more often, WAlert or Lav Sempre?

WAlert ships an update every 3 weeks, and Lav Sempre fortnightly. Most recently, WAlert was updated on October 29, 2026 and Lav Sempre on October 28, 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.*