# Spin vs 禹州行

The clearest difference is review sentiment: Spin at 86% against 禹州行's 20%. Spin also leads on iOS requirement (6.0 vs 8.0). 禹州行's advantage is price (Free vs $2.99). On update cadence, ads, in-app purchases and device support there is nothing between them.

禹州行 is free to download; Spin costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Spin | 禹州行 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.6 (44 ratings)](https://appshunter.io/ios/app/spin-a-wind/id327740080/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | **86.1% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Paid | — |
| Size | 10 MB | 38 MB |
| Requires iOS | **6.0** | 8.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Len Robinson](https://appshunter.io/developer/327740083) | [Zhengzhou Tiamaes Technology Co., Ltd](https://appshunter.io/developer/1516763493) |

## What reviewers say

### Spin

[App page](https://appshunter.io/ios/app/spin-a-wind/id327740080)

Calculate critical aviation weather data including wind components, temperature conversions, altitude calculations, and airspeed. Designed for pilots with an intuitive, one-handed interface and instant results.

**Highlights:** Wind component calculation (headwind, tailwind, crosswind), Temperature conversions and wind chill factor, Altitude calculations (pressure, density), Airspeed calculator (TAS, Mach, speed of sound), Customizable units and caution thresholds, One-handed, reel-based interface

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

**In-app purchases:** none


### 禹州行

[App page](https://appshunter.io/ios/app/id1184840800)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spin free?

Spin costs $2.99, with no in-app purchases.

### Is 禹州行 free?

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

### Do Spin or 禹州行 have ads?

Neither Spin nor 禹州行 shows ads.

### Which is updated more often, Spin or 禹州行?

Spin ships an update every 3 months, and 禹州行 every 3 months. Most recently, Spin was updated on October 23, 2026 and 禹州行 on October 26, 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.*