# NVH Source Locator vs Heel Drop

The clearest difference is in-app purchases: Heel Drop at none against NVH Source Locator's 1. NVH Source Locator's advantage is update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NVH Source Locator sells 1 one-off in-app purchase. Heel Drop asks for nothing beyond the download.

NVH Source Locator ships an update every 4 days, Heel Drop every 2 months. The most recent releases landed on November 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | NVH Source Locator | Heel Drop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Size | 12 MB | 31 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Roman Franta](https://appshunter.io/developer/1895145157) | [CODEENSIS LTD](https://appshunter.io/developer/859208704) |

## What reviewers say

### NVH Source Locator

[App page](https://appshunter.io/ios/app/nvh-source-locator/id6763063429)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NVH Source Locator Pro | $19.99 | one-time |


### Heel Drop

[App page](https://appshunter.io/ios/app/heel-drop-floor-vibration/id6796977956)

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

**In-app purchases:** none


## Frequently asked questions

### Is NVH Source Locator free?

NVH Source Locator is free to download, with in-app purchases available.

### Is Heel Drop free?

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

### Do NVH Source Locator or Heel Drop have ads?

Neither NVH Source Locator nor Heel Drop shows ads.

### Which is updated more often, NVH Source Locator or Heel Drop?

NVH Source Locator ships an update every 4 days, and Heel Drop every 2 months. Most recently, NVH Source Locator was updated on November 5, 2026 and Heel Drop 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.*