# TransVision vs Krun

The clearest difference is in-app purchases: TransVision at none against Krun's 1. TransVision also leads on ads (none vs shown). Krun's advantage is update cadence (every 3 days vs every 3 months) and iOS requirement (16.6 vs 27.0). On price and device support there is nothing between them.

Both are free to download. Krun sells 1 one-off in-app purchase. TransVision asks for nothing beyond the download.

TransVision ships an update every 3 months, Krun every 3 days. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TransVision | Krun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/krun-spinner/id6757863339/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 92 MB | 6 MB |
| Requires iOS | 27.0 | **16.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Holo Interactive](https://appshunter.io/developer/1652143524) | [Shinichiro Eto](https://appshunter.io/developer/1864675097) |

## What reviewers say

### TransVision

[App page](https://appshunter.io/ios/app/transvision/id6736925900)

**Features:** macOS Compatibility

**In-app purchases:** none


### Krun

[App page](https://appshunter.io/ios/app/krun-spinner/id6757863339)

Engage with a digital pinwheel that creates captivating optical illusions as it spins and slows. Customize shapes, colors, and speed for a unique visual experience. It's a simple yet mesmerizing tool for all ages.

**Highlights:** Swipe-to-spin pinwheels, Illusions appear as rotation slows, Shape, color, and speed customization, Unlock all content, Remove ads

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $2.99 | one-time |


## Frequently asked questions

### Is TransVision free?

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

### Is Krun free?

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

### Do TransVision or Krun have ads?

Krun shows ads; TransVision does not.

### Which is updated more often, TransVision or Krun?

TransVision ships an update every 3 months, and Krun every 3 days. Most recently, TransVision was updated on October 21, 2026 and Krun on October 28, 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.*