# Radialight vs Alertr

The clearest difference is in-app purchases: Radialight at none against Alertr's 2. Radialight also leads on iOS requirement (14.0 vs 16.4). Alertr's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Alertr sells 2 in-app purchases, starting at $2.49 per month. Radialight asks for nothing beyond the download.

Radialight ships an update every 6 weeks, Alertr monthly. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Radialight | Alertr |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 38 MB | 80 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ermete Giudici S.p.A.](https://appshunter.io/developer/1463049137) | [We are Made BV](https://appshunter.io/developer/1065656436) |

## What reviewers say

### Radialight

[App page](https://appshunter.io/ios/app/radialight/id1463049138)

Control your smart heating system remotely with this app. Manage comfort in multiple zones, set weekly schedules for energy savings, and monitor real-time consumption reports. Receive notifications for important status updates.

**Highlights:** Remote radiator control, Multi-zone management, Weekly heating schedules, Energy consumption reports, Push notifications, Customizable comfort levels

**In-app purchases:** none


### Alertr

[App page](https://appshunter.io/ios/app/alertr/id6499338952)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subcription. | $2.49 | per month |
| Yearly subscription | $19.95 | per year |


## Frequently asked questions

### Is Radialight free?

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

### Is Alertr free?

Alertr is free to download, with in-app purchases available.

### Do Radialight or Alertr have ads?

Radialight shows ads; Alertr does not.

### Which is updated more often, Radialight or Alertr?

Radialight ships an update every 6 weeks, and Alertr monthly. Most recently, Radialight was updated on October 8, 2026 and Alertr on October 2, 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.*