# Gectaro. Прораб vs Kaleidoscope AR

The clearest difference is in-app purchases: Gectaro. Прораб at none against Kaleidoscope AR's 1. Gectaro. Прораб also leads on iOS requirement (12.0 vs 16.0). Kaleidoscope AR's advantage is update cadence (every 4 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Kaleidoscope AR sells 1 in-app purchase, starting at $12.99 per year. Gectaro. Прораб asks for nothing beyond the download.

Gectaro. Прораб ships an update every 3 months, Kaleidoscope AR every 4 days. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Gectaro. Прораб | Kaleidoscope AR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 42 MB | 138 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GEKTARO, OOO](https://appshunter.io/developer/1629689594) | [MARITIME MASTER LIMITED](https://appshunter.io/developer/1107589346) |

## What reviewers say

### Gectaro. Прораб

[App page](https://appshunter.io/ios/app/gectaro/id1629689592)

**In-app purchases:** none


### Kaleidoscope AR

[App page](https://appshunter.io/ios/app/kaleidoscope-ar/id6482973721)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly | $12.99 | per year |


## Frequently asked questions

### Is Gectaro. Прораб free?

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

### Is Kaleidoscope AR free?

Kaleidoscope AR is free to download, with in-app purchases available.

### Do Gectaro. Прораб or Kaleidoscope AR have ads?

Neither Gectaro. Прораб nor Kaleidoscope AR shows ads.

### Which is updated more often, Gectaro. Прораб or Kaleidoscope AR?

Gectaro. Прораб ships an update every 3 months, and Kaleidoscope AR every 4 days. Most recently, Gectaro. Прораб was updated on October 25, 2026 and Kaleidoscope AR on November 4, 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.*