# Barometer vs Nidus

The clearest difference is update cadence: Nidus at every 2 weeks against Barometer's every 6 months. Barometer's advantage is iOS requirement (13.0 vs 18.2). On price, ads, in-app purchases and device support there is nothing between them.

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

Barometer ships an update every 6 months, Nidus every 2 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Barometer | Nidus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 55 MB | 14 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Expert Solution](https://appshunter.io/developer/1448344243) | [Andrii Liakhovych](https://appshunter.io/developer/1887015179) |

## What reviewers say

### Barometer

[App page](https://appshunter.io/ios/app/barometer/id6657979796)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nidus

[App page](https://appshunter.io/ios/app/nidus/id6760956975)

**In-app purchases:** none


## Frequently asked questions

### Is Barometer free?

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

### Is Nidus free?

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

### Do Barometer or Nidus have ads?

Neither Barometer nor Nidus shows ads.

### Which is updated more often, Barometer or Nidus?

Barometer ships an update every 6 months, and Nidus every 2 weeks. Most recently, Barometer was updated on September 17, 2026 and Nidus on September 23, 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.*