# Alertify vs JustArea

The clearest difference is in-app purchases: Alertify at none against JustArea's 2. JustArea's advantage is update cadence (every 3 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. JustArea sells 2 in-app purchases, starting at $9.99 per year. Alertify asks for nothing beyond the download.

Alertify ships an update weekly, JustArea every 3 days. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Alertify | JustArea |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 13 MB | 9 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sertus Group SA](https://appshunter.io/developer/1704980209) | [Muhammet Ozturk](https://appshunter.io/developer/1640983852) |

## What reviewers say

### Alertify

[App page](https://appshunter.io/ios/app/alertify/id6463781481)

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

**In-app purchases:** none


### JustArea

[App page](https://appshunter.io/ios/app/justarea-area-measure/id6788860769)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual | $9.99 | per year |
| JustArea Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Alertify free?

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

### Is JustArea free?

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

### Do Alertify or JustArea have ads?

Neither Alertify nor JustArea shows ads.

### Which is updated more often, Alertify or JustArea?

Alertify ships an update weekly, and JustArea every 3 days. Most recently, Alertify was updated on October 20, 2026 and JustArea on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*