# Pireva vs Klirr

The clearest difference is update cadence: Klirr at every 3 weeks against Pireva's every 3 months. Pireva's advantage is iOS requirement (15.1 vs 17.6). 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.

Pireva ships an update every 3 months, Klirr every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Pireva | Klirr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 26 MB | 1 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pitea Renhallning och Vatten AB](https://appshunter.io/developer/1554084013) | [Albin Haglund](https://appshunter.io/developer/1793135532) |

## What reviewers say

### Pireva

[App page](https://appshunter.io/ios/app/pireva/id1554084011)

**Features:** macOS Compatibility

**In-app purchases:** none


### Klirr

[App page](https://appshunter.io/ios/app/klirr/id6741112210)

**In-app purchases:** none


## Frequently asked questions

### Is Pireva free?

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

### Is Klirr free?

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

### Do Pireva or Klirr have ads?

Neither Pireva nor Klirr shows ads.

### Which is updated more often, Pireva or Klirr?

Pireva ships an update every 3 months, and Klirr every 3 weeks. Most recently, Pireva was updated on October 29, 2026 and Klirr on October 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.*