# Trelleborg SiteGuide vs HammerHead OnSite

The clearest difference is rating: Trelleborg SiteGuide at 5.0 against HammerHead OnSite's 3.0. HammerHead OnSite's advantage is update cadence (every 2 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Trelleborg SiteGuide holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Trelleborg SiteGuide ships an update every 2 months, HammerHead OnSite every 2 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Trelleborg SiteGuide | HammerHead OnSite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trelleborg-siteguide/id895731150/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/hammerhead-onsite/id6504952035/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 12 MB | 33 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Trelleborg AB](https://appshunter.io/developer/423282462) | [HammerHead Trenchless Equipment](https://appshunter.io/developer/606955225) |

## What reviewers say

### Trelleborg SiteGuide

[App page](https://appshunter.io/ios/app/trelleborg-siteguide/id895731150)

This app offers quality assurance support for pipe rehabilitation professionals using "No-Dig" methods. It features a digital resin calculator for specific repair techniques and provides downloadable templates for site use.

**Highlights:** Quality assurance support, "No-Dig" pipe rehabilitation methods, Digital resin calculator, Trenchless pipe repair, Downloadable QM protocols, Data sheets

**Features:** macOS Compatibility

**In-app purchases:** none


### HammerHead OnSite

[App page](https://appshunter.io/ios/app/hammerhead-onsite/id6504952035)

This app helps professionals calculate precise mixing ratios and cure times for pipe rehabilitation projects. It simplifies CIPP and coating system calculations, tracks job specifications, and provides access to technical data for specific products.

**Highlights:** Mixing ratio calculations, Cure time determination, CIPP system calculations, Coating system calculations, Job log for tracking, Technical data access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trelleborg SiteGuide free?

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

### Is HammerHead OnSite free?

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

### Which has better reviews, Trelleborg SiteGuide or HammerHead OnSite?

Trelleborg SiteGuide is rated higher. Trelleborg SiteGuide averages 5.0 out of 5 from 1 ratings, while HammerHead OnSite averages 3.0 from 2 ratings.

### Do Trelleborg SiteGuide or HammerHead OnSite have ads?

Neither Trelleborg SiteGuide nor HammerHead OnSite shows ads.

### Which is updated more often, Trelleborg SiteGuide or HammerHead OnSite?

Trelleborg SiteGuide ships an update every 2 months, and HammerHead OnSite every 2 weeks. Most recently, Trelleborg SiteGuide was updated on October 15, 2026 and HammerHead OnSite on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*