# Metis OS vs Splenper

Metis OS and Splenper 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.

Metis OS ships an update fortnightly, Splenper every 3 weeks. The most recent releases landed on May 17, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Metis OS | Splenper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 1 MB | 37 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Christian Daniel Johnson](https://appshunter.io/developer/1759691186) | [Fuad Mirzazade](https://appshunter.io/developer/1676048427) |

## What reviewers say

### Metis OS

[App page](https://appshunter.io/ios/app/metis-os-tactical/id6581486072)

**Features:** macOS Compatibility

**In-app purchases:** none


### Splenper

[App page](https://appshunter.io/ios/app/splenper/id6746457726)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Metis OS free?

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

### Is Splenper free?

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

### Do Metis OS or Splenper have ads?

Neither Metis OS nor Splenper shows ads.

### Which is updated more often, Metis OS or Splenper?

Metis OS ships an update fortnightly, and Splenper every 3 weeks. Most recently, Metis OS was updated on May 17, 2026 and Splenper on September 5, 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.*