# Gear Metrology vs ViGravitatis

The clearest difference is update cadence: Gear Metrology at every 7 months against ViGravitatis's every 47 months. Gear Metrology also leads on iOS requirement (8.0 vs 14.2). 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.

Gear Metrology ships an update every 7 months, ViGravitatis every 47 months. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Gear Metrology | ViGravitatis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gear-metrology/id1167543797/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 47 months |
| Monetization | Free | — |
| Size | 7 MB | 34 MB |
| Requires iOS | **8.0** | 14.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carl Zeiss AG](https://appshunter.io/developer/488066215) | [Artyom Rudakov](https://appshunter.io/developer/1500000619) |

## What reviewers say

### Gear Metrology

[App page](https://appshunter.io/ios/app/gear-metrology/id1167543797)

This educational app provides an overview of characteristic values for gears used in industrial metrology. It serves as a reference for understanding gear specifications in a professional context.

**Highlights:** Characteristic gear values overview, Industrial metrology focus, Educational reference tool, Professional gear specifications

**In-app purchases:** none


### ViGravitatis

[App page](https://appshunter.io/ios/app/vigravitatis/id1500181187)

**In-app purchases:** none


## Frequently asked questions

### Is Gear Metrology free?

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

### Is ViGravitatis free?

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

### Do Gear Metrology or ViGravitatis have ads?

Neither Gear Metrology nor ViGravitatis shows ads.

### Which is updated more often, Gear Metrology or ViGravitatis?

Gear Metrology ships an update every 7 months, and ViGravitatis every 47 months. Most recently, Gear Metrology was updated on October 21, 2026 and ViGravitatis on October 11, 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.*