# UltronAR vs PK

The clearest difference is price: UltronAR at Free against PK's $99.99. UltronAR also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (13.5 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

UltronAR is free to download; PK costs $99.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UltronAR ships an update every 2 weeks, PK every 2 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | UltronAR | PK |
| --- | --- | --- |
| Price | **Free** | $99.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pk-ink-pro/id6717616357/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Paid |
| Size | 107 MB | 16 MB |
| Requires iOS | **13.5** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Runvido sp. z o.o.](https://appshunter.io/developer/1523995110) | [Nelson Suarez Arteaga](https://appshunter.io/developer/1692733605) |

## What reviewers say

### UltronAR

[App page](https://appshunter.io/ios/app/ultronar/id1617596535)

**In-app purchases:** none


### PK

[App page](https://appshunter.io/ios/app/pk-ink-pro/id6717616357)

Create a paranormal illusion by magically moving permanent ink on your mobile screen. Spectators choose ink placement and color, and you control the movement remotely or with hand gestures. Offers multiple finales and can integrate with other magic apps for advanced effects.

**Highlights:** Spectator-chosen ink placement, Customizable marker colors and designs, Remote control and hand-gesture recognition, Multiple powerful finales, Offline functionality, Integration with other magic apps

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

**In-app purchases:** none


## Frequently asked questions

### Is UltronAR free?

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

### Is PK free?

PK costs $99.99, with no in-app purchases.

### Do UltronAR or PK have ads?

Neither UltronAR nor PK shows ads.

### Which is updated more often, UltronAR or PK?

UltronAR ships an update every 2 weeks, and PK every 2 months. Most recently, UltronAR was updated on October 14, 2026 and PK on October 24, 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.*