# Summi vs GearTech OS

The clearest difference is in-app purchases: GearTech OS at none against Summi's 1. GearTech OS also leads on ads (none vs shown) and update cadence (every 5 days vs every 8 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Summi sells 1 in-app purchase, starting at $0.99 per month. GearTech OS asks for nothing beyond the download.

Summi ships an update every 8 months, GearTech OS every 5 days. The most recent releases landed on September 11, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Summi | GearTech OS |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 4 MB | 2 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [敏 周](https://appshunter.io/developer/1033391298) | [Josue Ponce](https://appshunter.io/developer/6785117860) |

## What reviewers say

### Summi

[App page](https://appshunter.io/ios/app/summi-uscis-case-tracker/id6474602940)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Summi+ | $0.99 | per month |


### 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


## Frequently asked questions

### Is Summi free?

Summi is free to download, with in-app purchases available.

### Is GearTech OS free?

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

### Do Summi or GearTech OS have ads?

Summi shows ads; GearTech OS does not.

### Which is updated more often, Summi or GearTech OS?

Summi ships an update every 8 months, and GearTech OS every 5 days. Most recently, Summi was updated on September 11, 2026 and GearTech OS on September 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.*