# Slanguage vs SkyEngine

The clearest difference is ads: SkyEngine at none against Slanguage's shown. SkyEngine also leads on update cadence (every 8 days vs every 5 months). Slanguage's advantage is iOS requirement (13.1 vs 17.6). On price, 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.

Slanguage ships an update every 5 months, SkyEngine every 8 days. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Slanguage | SkyEngine |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 8 days** |
| Size | 45 MB | 23 MB |
| Requires iOS | **13.1** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Incelligence, Inc.](https://appshunter.io/developer/1272267051) | [ZIRUI LYU](https://appshunter.io/developer/1896284758) |

## What reviewers say

### Slanguage

[App page](https://appshunter.io/ios/app/slanguage-usa/id1542993463)

**Features:** macOS Compatibility

**In-app purchases:** none


### SkyEngine

[App page](https://appshunter.io/ios/app/skyengine/id6766723696)

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

**In-app purchases:** none


## Frequently asked questions

### Is Slanguage free?

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

### Is SkyEngine free?

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

### Do Slanguage or SkyEngine have ads?

Slanguage shows ads; SkyEngine does not.

### Which is updated more often, Slanguage or SkyEngine?

Slanguage ships an update every 5 months, and SkyEngine every 8 days. Most recently, Slanguage was updated on September 29, 2026 and SkyEngine on October 9, 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.*