# Phrikolat HDD Basics vs OneContact App

The clearest difference is rating: OneContact App at 5.0 against Phrikolat HDD Basics's 4.0. OneContact App also leads on update cadence (every 2 weeks vs every 4 months) and ratings volume (3 vs 1). Phrikolat HDD Basics's advantage is iOS requirement (13.0 vs 15.0). On price, review sentiment, 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.

OneContact App holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Phrikolat HDD Basics ships an update every 4 months, OneContact App every 2 weeks. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Phrikolat HDD Basics | OneContact App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/phrikolat-hdd-basics/id763433757/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/onecontact-app/id6769801686/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 33 MB | 68 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Phrikolat Drilling Specialties GmbH](https://appshunter.io/developer/763433760) | [Be Happy Innovations LLC](https://appshunter.io/developer/1852845305) |

## What reviewers say

### 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

**In-app purchases:** none


### OneContact App

[App page](https://appshunter.io/ios/app/onecontact-app/id6769801686)

Automatically keeps your contact information current as people update their details. Create custom contact cards for different aspects of your life and share only what you choose, ensuring you always have the latest details for your connections.

**Highlights:** Auto-updating contact information, Customizable contact cards, Selective information sharing, Syncs with phone's address book, Privacy controls for sharing, Multiple cards for different groups

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

**In-app purchases:** none


## Frequently asked questions

### Is Phrikolat HDD Basics free?

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

### Is OneContact App free?

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

### Which has better reviews, Phrikolat HDD Basics or OneContact App?

OneContact App is rated higher. Phrikolat HDD Basics averages 4.0 out of 5 from 1 ratings, while OneContact App averages 5.0 from 3 ratings.

### Do Phrikolat HDD Basics or OneContact App have ads?

Neither Phrikolat HDD Basics nor OneContact App shows ads.

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

Phrikolat HDD Basics ships an update every 4 months, and OneContact App every 2 weeks. Most recently, Phrikolat HDD Basics was updated on October 6, 2026 and OneContact App on October 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.*