# SmashX QC vs Gyroscope ∞ Rotation Sensor

The clearest difference is in-app purchases: SmashX QC at none against Gyroscope ∞ Rotation Sensor's 2. SmashX QC also leads on ads (none vs shown) and device support (3 vs 1). Gyroscope ∞ Rotation Sensor's advantage is update cadence (every 4 weeks vs every 19 months). On price there is nothing between them.

Both are free to download. Gyroscope ∞ Rotation Sensor sells 2 in-app purchases, starting at $1.99 per month. SmashX QC asks for nothing beyond the download.

SmashX QC ships an update every 19 months, Gyroscope ∞ Rotation Sensor every 4 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SmashX QC | Gyroscope ∞ Rotation Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gyroscope-rotation-sensor/id6774744125/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 4 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SmashX B.V.](https://appshunter.io/developer/1534740123) | [Fawkes Wei](https://appshunter.io/developer/432767536) |

## What reviewers say

### SmashX QC

[App page](https://appshunter.io/ios/app/smashx-qc/id1613366638)

**In-app purchases:** none


### Gyroscope ∞ Rotation Sensor

[App page](https://appshunter.io/ios/app/gyroscope-rotation-sensor/id6774744125)

Visualize your device's real-time rotation and angular velocity across three axes. Switch between degrees and radians per second for precise measurements. Offers a clean, distraction-free interface for understanding sensor data.

**Highlights:** Live 3-axis rotation chart, Degrees/second and radians/second modes, Smooth, bias-removed sensor readings, Distraction-free design, Real-time visualization

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is SmashX QC free?

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

### Is Gyroscope ∞ Rotation Sensor free?

Gyroscope ∞ Rotation Sensor is free to download, with in-app purchases available.

### Do SmashX QC or Gyroscope ∞ Rotation Sensor have ads?

Gyroscope ∞ Rotation Sensor shows ads; SmashX QC does not.

### Which is updated more often, SmashX QC or Gyroscope ∞ Rotation Sensor?

SmashX QC ships an update every 19 months, and Gyroscope ∞ Rotation Sensor every 4 weeks. Most recently, SmashX QC was updated on October 25, 2026 and Gyroscope ∞ Rotation Sensor on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*