# Rayson vs SDK

The clearest difference is update cadence: SDK at every 3 weeks against Rayson's every 2 months. 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.

Rayson ships an update every 2 months, SDK every 3 weeks. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Rayson | SDK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 62 MB | 68 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Taranov](https://appshunter.io/developer/1445357355) | [Muslim Kurbanov](https://appshunter.io/developer/1711047258) |

## What reviewers say

### Rayson

[App page](https://appshunter.io/ios/app/rayson/id6670796527)

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

**In-app purchases:** none


### SDK

[App page](https://appshunter.io/ios/app/sdk/id6755623441)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rayson free?

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

### Is SDK free?

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

### Do Rayson or SDK have ads?

Neither Rayson nor SDK shows ads.

### Which is updated more often, Rayson or SDK?

Rayson ships an update every 2 months, and SDK every 3 weeks. Most recently, Rayson was updated on October 19, 2026 and SDK on October 15, 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.*