# Grant TechBox vs Schiedel Chimney Installation

Grant TechBox and Schiedel Chimney Installation are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Grant TechBox ships an update every 12 months, Schiedel Chimney Installation every 15 months. The most recent releases landed on September 3, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Grant TechBox | Schiedel Chimney Installation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 15 months |
| Size | 47 MB | 2 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grant Engineering UK LTD](https://appshunter.io/developer/1042420331) | [Schiedel Chimney Systems Ltd.](https://appshunter.io/developer/1441625198) |

## What reviewers say

### Grant TechBox

[App page](https://appshunter.io/ios/app/grant-techbox/id1042420332)

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

**In-app purchases:** none


### Schiedel Chimney Installation

[App page](https://appshunter.io/ios/app/schiedel-chimney-installation/id1441625199)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grant TechBox free?

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

### Is Schiedel Chimney Installation free?

Schiedel Chimney Installation is free to download, with no in-app purchases.

### Do Grant TechBox or Schiedel Chimney Installation have ads?

Neither Grant TechBox nor Schiedel Chimney Installation shows ads.

### Which is updated more often, Grant TechBox or Schiedel Chimney Installation?

Grant TechBox ships an update every 12 months, and Schiedel Chimney Installation every 15 months. Most recently, Grant TechBox was updated on September 3, 2026 and Schiedel Chimney Installation on September 17, 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.*