# Sirppi vs Celotron Pulse

The clearest difference is iOS requirement: Celotron Pulse at 10.0 against Sirppi's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Sirppi ships an update every 5 months, Celotron Pulse every 4 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Sirppi | Celotron Pulse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Size | 55 MB | 73 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nikitec Oy](https://appshunter.io/developer/1238678511) | [Celotron Oy](https://appshunter.io/developer/1156342855) |

## What reviewers say

### Sirppi

[App page](https://appshunter.io/ios/app/sirppi/id1238678513)

**Features:** macOS Compatibility

**In-app purchases:** none


### Celotron Pulse

[App page](https://appshunter.io/ios/app/celotron-pulse-app/id1343663081)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sirppi free?

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

### Is Celotron Pulse free?

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

### Do Sirppi or Celotron Pulse have ads?

Neither Sirppi nor Celotron Pulse shows ads.

### Which is updated more often, Sirppi or Celotron Pulse?

Sirppi ships an update every 5 months, and Celotron Pulse every 4 months. Most recently, Sirppi was updated on October 7, 2026 and Celotron Pulse on October 12, 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.*