# A.E. Robinson vs Vibration Detect II

The clearest difference is price: A.E. Robinson at Free against Vibration Detect II's $9.99. Vibration Detect II's advantage is iOS requirement (11.0 vs 14.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

A.E. Robinson is free to download; Vibration Detect II costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

A.E. Robinson ships an update every 22 months, Vibration Detect II every 28 months. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | A.E. Robinson | Vibration Detect II |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 22 months** | Every 28 months |
| Size | 44 MB | 11 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Destwin LLC](https://appshunter.io/developer/1359900128) | [Anders Falck](https://appshunter.io/developer/941097539) |

## What reviewers say

### A.E. Robinson

[App page](https://appshunter.io/ios/app/ae-robinson/id1462466599)

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

**In-app purchases:** none


### Vibration Detect II

[App page](https://appshunter.io/ios/app/vibration-detect-ii/id1520170942)

**In-app purchases:** none


## Frequently asked questions

### Is A.E. Robinson free?

A.E. Robinson is free to download, with no in-app purchases.

### Is Vibration Detect II free?

Vibration Detect II costs $9.99, with no in-app purchases.

### Do A.E. Robinson or Vibration Detect II have ads?

Neither A.E. Robinson nor Vibration Detect II shows ads.

### Which is updated more often, A.E. Robinson or Vibration Detect II?

A.E. Robinson ships an update every 22 months, and Vibration Detect II every 28 months. Most recently, A.E. Robinson was updated on September 16, 2026 and Vibration Detect II on September 14, 2026.

---

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