# Kala vs Safety Observer 3.0

Kala and Safety Observer 3.0 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 16, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Kala | Safety Observer 3.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 42 MB | 37 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mindorf ApS](https://appshunter.io/developer/534186566) | [The National Research Centre for the Working Environment](https://appshunter.io/developer/1456795250) |

## What reviewers say

### Kala

[App page](https://appshunter.io/ios/app/kala/id1017398114)

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

**In-app purchases:** none


### Safety Observer 3.0

[App page](https://appshunter.io/ios/app/safety-observer-30/id1671123027)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kala free?

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

### Is Safety Observer 3.0 free?

Safety Observer 3.0 is free to download, with no in-app purchases.

### Do Kala or Safety Observer 3.0 have ads?

Neither Kala nor Safety Observer 3.0 shows ads.

### Which is updated more often, Kala or Safety Observer 3.0?

Kala ships an update monthly, and Safety Observer 3.0 monthly. Most recently, Kala was updated on October 16, 2026 and Safety Observer 3.0 on September 25, 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.*