# OHIO811 vs Phrikolat HDD Basics

The clearest difference is rating: Phrikolat HDD Basics at 4.0 against OHIO811's 3.3. Phrikolat HDD Basics also leads on review sentiment (100% vs 60%) and ads (none vs shown). OHIO811's advantage is ratings volume (11 vs 1) and iOS requirement (11.0 vs 13.0). On price, 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.

Phrikolat HDD Basics holds the better App Store score, 4.0 against 3.3. That said, the two scores are not equally well evidenced: OHIO811 has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of OHIO811's written reviews are positive against 100% of Phrikolat HDD Basics's.

OHIO811 ships an update every 9 months, Phrikolat HDD Basics every 4 months. The most recent releases landed on October 21, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OHIO811 | Phrikolat HDD Basics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (11 ratings)](https://appshunter.io/ios/app/ohio811/id713526907/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/phrikolat-hdd-basics/id763433757/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Ad-supported | **Free** |
| Size | 30 MB | 32 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ohio Utilities Protection Service](https://appshunter.io/developer/713526910) | [Phrikolat Drilling Specialties GmbH](https://appshunter.io/developer/763433760) |

## What reviewers say

### OHIO811

[App page](https://appshunter.io/ios/app/ohio811/id713526907)

This app serves as a communication link for individuals planning to dig, relaying requests to utility companies. It provides information on safe digging practices, upcoming events, and legal requirements. Users can check line markings and submit excavation requests.

**Highlights:** Relay digging requests to utilities, Safe digging information, Upcoming events calendar, Legal and legislative updates, Positive Response for line markings, Submit single address locates (e-dig), View nearby excavations (Near ticket)

**Features:** macOS Compatibility

**In-app purchases:** none


### Phrikolat HDD Basics

[App page](https://appshunter.io/ios/app/phrikolat-hdd-basics/id763433757)

This app provides essential drilling fluid product information, mixing tables for various soil conditions, and HDD-related data for jobsite professionals. It offers offline calculations for common jobsite needs, eliminating the need for internet or external devices.

**Highlights:** Drilling fluid product information, Mixing tables for soil conditions, HDD pipe dimensions and characteristics, Unit conversion tables, Offline jobsite calculations, Reference tables

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

**In-app purchases:** none


## Frequently asked questions

### Is OHIO811 free?

OHIO811 is free to download, with no in-app purchases.

### Is Phrikolat HDD Basics free?

Phrikolat HDD Basics is free to download, with no in-app purchases.

### Which has better reviews, OHIO811 or Phrikolat HDD Basics?

Phrikolat HDD Basics is rated higher. OHIO811 averages 3.3 out of 5 from 11 ratings, while Phrikolat HDD Basics averages 4.0 from 1 ratings.

### Do OHIO811 or Phrikolat HDD Basics have ads?

OHIO811 shows ads; Phrikolat HDD Basics does not.

### Which is updated more often, OHIO811 or Phrikolat HDD Basics?

OHIO811 ships an update every 9 months, and Phrikolat HDD Basics every 4 months. Most recently, OHIO811 was updated on October 21, 2026 and Phrikolat HDD Basics on October 29, 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.*