# Grease App vs HDSensor

The clearest difference is update cadence: Grease App at every 5 weeks against HDSensor's every 3 months. HDSensor's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Grease App ships an update every 5 weeks, HDSensor every 3 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | Grease App | HDSensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grease-app/id1625065852/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 96 MB | 30 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Schaeffler Technologies GmbH & Co. KG](https://appshunter.io/developer/426470435) | [磊鑫 黄](https://appshunter.io/developer/1896745460) |

## What reviewers say

### Grease App

[App page](https://appshunter.io/ios/app/grease-app/id1625065852)

This app helps users determine the correct type, quantity, and interval for lubricating bearings. It prevents common lubrication errors like over- or undergreasing, contributing to more sustainable practices.

**Highlights:** Determine suitable grease type, Calculate grease service life, Set relubrication intervals, Calculate lubricant quantity, Avoid lubrication errors, Promote sustainable lubrication

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

**In-app purchases:** none


### HDSensor

[App page](https://appshunter.io/ios/app/hdsensor/id6770826321)

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

**In-app purchases:** none


## Frequently asked questions

### Is Grease App free?

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

### Is HDSensor free?

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

### Do Grease App or HDSensor have ads?

Neither Grease App nor HDSensor shows ads.

### Which is updated more often, Grease App or HDSensor?

Grease App ships an update every 5 weeks, and HDSensor every 3 months. Most recently, Grease App was updated on October 7, 2026 and HDSensor on October 7, 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.*