# GearTech OS vs Pipe Offset Calc

The clearest difference is in-app purchases: GearTech OS at none against Pipe Offset Calc's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Pipe Offset Calc sells 1 one-off in-app purchase. GearTech OS asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on September 24, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | GearTech OS | Pipe Offset Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/geartech-os/id6785117856/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free | — |
| Size | 2 MB | 22 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Josue Ponce](https://appshunter.io/developer/6785117860) | [Aliaksei Shuliakouski](https://appshunter.io/developer/6795032775) |

## What reviewers say

### GearTech OS

[App page](https://appshunter.io/ios/app/geartech-os/id6785117856)

This app provides specialized calculation tools for various trades, including pipefitting, welding, electrical, and framing. It displays the math behind each result and generates real diagrams of what you're building. Works offline and is ad-free.

**Highlights:** Specialized tools for 10+ trades, Detailed math for every calculation, Real diagrams of built components, Offline functionality, Bilingual (English/Spanish), No ads or tracking

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

**In-app purchases:** none


### Pipe Offset Calc

[App page](https://appshunter.io/ios/app/pipe-offset-calc-spoolset/id6805885264)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock everything | $12.99 | one-time |


## Frequently asked questions

### Is GearTech OS free?

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

### Is Pipe Offset Calc free?

Pipe Offset Calc is free to download, with in-app purchases available.

### Do GearTech OS or Pipe Offset Calc have ads?

Neither GearTech OS nor Pipe Offset Calc shows ads.

### Which is updated more often, GearTech OS or Pipe Offset Calc?

GearTech OS ships an update every 5 days, and Pipe Offset Calc every 5 days. Most recently, GearTech OS was updated on September 24, 2026 and Pipe Offset Calc on September 12, 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.*